feat: update parallelization for 0variance

.gitea/workflows/build_and_test.yml

@@ -15,7 +15,7 @@ jobs:
         uses: actions/setup-java@v4
         with:
           distribution: 'temurin'
-          java-version: '24'
+          java-version: '23'
           cache: 'maven'
       - name: Compile project
         run: |

pom.xml

@@ -12,37 +12,37 @@ http://maven.apache.org/maven-v4_0_0.xsd">
 	<url>http://maven.apache.org</url>
 	<dependencies>
 		<dependency>
-			<groupId>org.junit.jupiter</groupId>
+			<groupId>junit</groupId>
-			<artifactId>junit-jupiter-api</artifactId>
+			<artifactId>junit</artifactId>
-			<version>5.13.2</version>
+			<version>4.13.2</version>
 			<scope>test</scope>
 		</dependency>
 		<!-- https://mvnrepository.com/artifact/org.antlr/antlr4 -->
 		<dependency>
 			<groupId>org.antlr</groupId>
 			<artifactId>antlr4</artifactId>
-			<version>4.13.2</version>
+			<version>4.11.1</version>
 		</dependency>
 		<dependency>
 			<groupId>commons-io</groupId>
 			<artifactId>commons-io</artifactId>
-			<version>2.19.0</version>
+			<version>2.16.1</version>
 		</dependency>
 		<dependency>
 			<groupId>io.github.classgraph</groupId>
 			<artifactId>classgraph</artifactId>
-			<version>4.8.180</version>
+			<version>4.8.172</version>
 		</dependency>
 		<dependency>
 			<groupId>com.google.guava</groupId>
 			<artifactId>guava</artifactId>
-			<version>33.4.8-jre</version>
+			<version>33.2.0-jre</version>
 		</dependency>
 		<!-- https://mvnrepository.com/artifact/org.ow2.asm/asm -->
 		<dependency>
 			<groupId>org.ow2.asm</groupId>
 			<artifactId>asm</artifactId>
-			<version>9.8</version>
+			<version>9.5</version>
 		</dependency>
 		<dependency>
 			<groupId>org.java-websocket</groupId>
@@ -71,17 +71,17 @@ http://maven.apache.org/maven-v4_0_0.xsd">
 			<plugin>
 				<groupId>org.apache.maven.plugins</groupId>
 				<artifactId>maven-compiler-plugin</artifactId>
-				<version>3.14.0</version>
+				<version>3.11.0</version>
 				<configuration>
 					<compilerArgs>--enable-preview</compilerArgs>
-                    <source>24</source>
+                    <source>23</source>
-                    <target>24</target>
+                    <target>23</target>
                 </configuration>
 			</plugin>
 			<plugin>
 				<groupId>org.apache.maven.plugins</groupId>
 				<artifactId>maven-surefire-plugin</artifactId>
-				<version>3.5.3</version>
+				<version>3.1.0</version>
 				<configuration>
 					<redirectTestOutputToFile>true</redirectTestOutputToFile>
 					<reportsDirectory>${project.build.directory}/test-reports</reportsDirectory>
@@ -97,7 +97,7 @@ http://maven.apache.org/maven-v4_0_0.xsd">
 			<plugin>
 				<groupId>org.antlr</groupId>
 				<artifactId>antlr4-maven-plugin</artifactId>
-				<version>4.13.2</version>
+				<version>4.11.1</version>
 				<executions>
 					<execution>
 						<id>antlr</id>
@@ -110,7 +110,7 @@ http://maven.apache.org/maven-v4_0_0.xsd">
 			<plugin>
 				<groupId>org.apache.maven.plugins</groupId>
 				<artifactId>maven-jar-plugin</artifactId>
-				<version>3.4.2</version>
+				<version>3.3.0</version>
 				<configuration>
 					<archive>
 						<manifest>

resources/LaufzeitTests/DeeplyNested.jav

@@ -0,0 +1,51 @@
+class C1 {
+    C1 self() {
+        return this;
+    }
+}
+
+class C2 {
+    C2 self() {
+        return this;
+    }
+}
+
+class Example {
+    untypedMethod(var) {
+        return var.self().self().self().self()
+                  .self().self().self().self()
+                  .self().self().self().self()
+                  .self().self().self().self()
+                  .self().self().self().self()
+                  .self().self().self().self()
+                  .self().self().self().self()
+                  .self().self().self().self()
+                  .self().self().self().self()
+                  .self().self().self().self()
+                  .self().self().self().self()
+                  .self().self().self().self()
+                  .self().self().self().self()
+                  .self().self().self().self()
+                  .self().self().self().self()
+                  .self().self().self().self()
+                  .self().self().self().self()
+                  .self().self().self().self()
+                  .self().self().self().self()
+                  .self().self().self().self()
+                  .self().self().self().self()
+                  .self().self().self().self()
+                  .self().self().self().self()
+                  .self().self().self().self()
+                  .self().self().self().self()
+                  .self().self().self().self()
+                  .self().self().self().self()
+                  .self().self().self().self()
+                  .self().self().self().self()
+                  .self().self().self().self()
+                  .self().self().self().self()
+                  .self().self().self().self()
+                  .self().self().self().self()
+                  .self().self().self().self()
+                  .self().self().self().self();
+    }
+}

resources/LaufzeitTests/GridSearch.jav

@@ -0,0 +1,43 @@
+import java.lang.Integer;
+import java.lang.Boolean;
+import java.util.Queue;
+import java.util.Vector;
+import java.util.List;
+import java.util.ArrayDeque;
+
+class Pos {
+    public Integer x;
+    public Integer y;
+    public Pos(Integer x, Integer y) {
+        this.x = x;
+        this.y = y;
+    }
+}
+
+class GridSearch {
+
+    Pos search(Vector<Vector<Boolean>> grid) {
+        var w = grid.size();
+        var h = grid.getFirst().size();
+
+        // keep a queue on which cells to check
+        var cellQueue = new ArrayDeque<Pos>();
+        cellQueue.add(new Pos(0,0));
+
+        while (!cellQueue.isEmpty()) {
+            var pos = cellQueue.poll();
+            // if the target was found: return the position
+            var value = grid.get(pos.x).get(pos.y);
+            if (value) {
+                return pos;
+            }
+
+            // keep searching on neighboring tiles
+            if (pos.x < w-1)    cellQueue.add(new Pos(pos.x + 1, pos.y));
+            if (pos.y < h-1)    cellQueue.add(new Pos(pos.x, pos.y + 1));
+        }
+
+        return (Pos)null;
+    }
+
+}

resources/LaufzeitTests/Mask.jav

@@ -0,0 +1,42 @@
+import java.util.List;
+import java.util.AbstractList;
+import java.util.Vector;
+import java.lang.Integer;
+
+class Pixel {
+    public color;
+}
+
+class Mask {
+
+    mask;
+
+    Mask(mask) {
+        this.mask = mask;
+    }
+
+    apply(pixels) {
+        var w = mask.size();
+        var h = mask.get(0).size();
+        var imgW = pixels.size();
+        var imgH = pixels.get(0).size();
+
+        for (var x = 0; x < imgW - w; x++) {
+            for (var y = 0; y < imgH - h; y++) {
+
+                var total = 0;
+                for (var xd = 0; xd < w; xd++) {
+                    for (var yd = 0; yd < h; yd++) {
+                        var p = pixels.get(x + xd).get(y + yd);
+                        var m = mask.get(xd).get(yd);
+                        total = total + (p.color * m);
+                    }
+                }
+
+                pixels.get(x).get(y).color = total;
+            }
+        }
+
+        return pixels;
+    }
+}

resources/LaufzeitTests/PascalsTriangle.jav

@@ -0,0 +1,39 @@
+import java.lang.Integer;
+import java.lang.Boolean;
+import java.util.ArrayList;
+import java.util.HashMap;
+
+public class PascalsTriangle {
+
+    create(n) {
+        var rows = new ArrayList<ArrayList<Integer>>();
+        var evens = new ArrayList<ArrayList<Boolean>>();
+
+        if (n <= 0) return rows;
+        // first row
+        rows.add(new ArrayList<Integer>(1));
+        evens.add(new ArrayList<Boolean>(false));
+
+        for (int y = 1; y < n; y++) {
+            var row = new ArrayList<Integer>();
+            var evensRow = new ArrayList<Boolean>();
+            row.add(1);
+            evensRow.add(false);
+
+            for (int x = 1; x < y-1; x++) {
+                int tl = rows.getLast().get(x-1);
+                int tr = rows.getLast().get(x);
+                row.add(tl + tr);
+                evensRow.add(((tl + tr) % 2) == 1);
+            }
+
+            row.add(1);
+            rows.add(row);
+            evensRow.add(false);
+            evens.add(evensRow);
+        }
+
+        return rows;
+    }
+
+}

resources/bytecode/javFiles/Bug325.jav

@@ -6,7 +6,7 @@ import java.util.stream.Stream;
 
 public class Bug325 {
     public main() {
-      var list = new ArrayList<>(List.of(1,2,3,4,5));
+      List<Integer> list = new ArrayList<>(List.of(1,2,3,4,5));
       var func = x -> x*2;
       return list.stream().map(func).toList();
    }

resources/bytecode/javFiles/Bug363.jav

@@ -1,22 +0,0 @@
-import java.lang.String;
-
-
-public class Bug363 {
-  uncurry (f){
-    return x -> f.apply(x);
-  }
-
-  uncurry (f){
-    return (x, y) -> f.apply(x).apply(y);
-  }
-
-  uncurry (f){
-    return (x, y, z) -> f.apply(x).apply(y).apply(z);
-  }
-
-  public test(){
-    var f = x -> y -> z -> x + y + z;
-    var g = uncurry(f);
-    return g.apply("A", "B", "C"); // Outputs: 6
-  }
-}

resources/bytecode/javFiles/Bug364.jav

@@ -1,8 +0,0 @@
-import java.lang.String;
-
-public class Bug364{
-  public main(){
-    var f = x -> y -> z -> x + y + z;
-    return f.apply("A").apply("B").apply("C");
-  }
-}

resources/bytecode/javFiles/Bug365.jav

@@ -1,21 +0,0 @@
-import java.lang.String;
-import java.lang.Object;
-
-public class Bug365{
-  swap(f){
-    return x -> y -> f.apply(y).apply(x);
-  }
-
-  swap(Fun1$$<String, Fun1$$<String, Fun1$$<String, Object>>> f){
-    return x -> y -> z -> f.apply(z).apply(y).apply(x);
-  }
-
-  public ex1() {
-    var func = x -> y -> z -> x + y + z;
-    return func.apply("A").apply("B").apply("C");
-  }
-  public ex2() {
-    var func = x -> y -> z -> x + y + z;
-    return swap(func).apply("A").apply("B").apply("C");
-  }
-}

resources/bytecode/javFiles/Bug366.jav

@@ -1,12 +0,0 @@
-import java.lang.Integer;
-
-public class Bug366 {
-    public static lambda() {
-        return (a, b) -> a + b;
-    }
-
-    public static test() {
-        var l = lambda();
-        return l.apply(10, 20);
-    }
-}

resources/bytecode/javFiles/Bug371.jav

@@ -1,10 +0,0 @@
-import java.lang.Boolean;
-
-public class Bug371 {
-    static m1(x, y) { return x || y; }
-    static m2(x, y) { return x && y; }
-
-    public static test() {
-        return m2(m1(true, false), true);
-    }
-}

resources/bytecode/javFiles/Bug373.jav

@@ -1,17 +0,0 @@
-import java.lang.Boolean;
-import java.lang.Integer;
-import java.lang.System;
-import java.io.PrintStream;
-import java.lang.Character;
-
-public class Bug373 {
-    public static main() {
-        System.out.println(true);
-        System.out.println(false);
-        System.out.println(1);
-        System.out.println(1l);
-        System.out.println(1.0);
-        System.out.println(1.0f);
-        System.out.println('a');
-    }
-}

resources/bytecode/javFiles/BugXXX.jav

@@ -0,0 +1,16 @@
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Optional;
+import java.lang.String;
+import java.util.stream.Stream;
+import java.util.function.Function;
+import java.util.function.Predicate;
+import java.lang.Integer;
+
+class BugXXX {
+    public main() {
+        List<Integer> i = new ArrayList<>(List.of(1,2,3,4,5,6,7,8,9,10));
+        Optional<Integer> tmp = i.stream().filter(x -> x == 5).map(x -> x*2).findFirst();
+        return tmp;
+    }
+}

resources/bytecode/javFiles/Main.jav

@@ -1,14 +0,0 @@
-import java.lang.Object;
-import java.lang.System;
-import java.lang.Iterable;
-import java.io.PrintStream;
-import java.util.List;
-import java.lang.String;
-
-class Main {
-    static main(args) {
-        for (var arg : args) {
-            System.out.println(arg);
-        }
-    }
-}

resources/bytecode/javFiles/Merge2.jav

@@ -0,0 +1,17 @@
+import java.util.List;
+import java.lang.Integer;
+//import java.util.Collection;
+
+public class Merge2  {
+
+	public merge(a, b) {
+     	a.addAll(b);
+		return a;
+	}
+
+  	public sort(in){
+    	var firstHalf = in.subList(1,2);
+    	return merge(sort(firstHalf), sort(in));
+    }
+    
+}

src/main/java/de/dhbwstuttgart/bytecode/Codegen.java

@@ -14,7 +14,6 @@ import org.objectweb.asm.*;
 import java.lang.invoke.*;
 import java.lang.reflect.Modifier;
 import java.util.*;
-import java.util.stream.Collectors;
 
 import static org.objectweb.asm.Opcodes.*;
 import static de.dhbwstuttgart.target.tree.expression.TargetBinaryOp.*;
@@ -88,16 +87,14 @@ public class Codegen {
         int localCounter;
         MethodVisitor mv;
         TargetType returnType;
-        boolean isStatic = false;
 
         Stack<BreakEnv> breakStack = new Stack<>();
         Stack<Integer> switchResultValue = new Stack<>();
 
-        State(TargetType returnType, MethodVisitor mv, int localCounter, boolean isStatic) {
+        State(TargetType returnType, MethodVisitor mv, int localCounter) {
             this.returnType = returnType;
             this.mv = mv;
             this.localCounter = localCounter;
-            this.isStatic = isStatic;
         }
 
         void enterScope() {
@@ -235,9 +232,9 @@ public class Codegen {
         if (source.equals(dest))
             return;
         if (source.equals(TargetType.Long)) {
-            if (dest.equals(TargetType.Integer))
+            if (dest.equals(TargetType.Integer)) {
                 mv.visitInsn(L2I);
-            else if (dest.equals(TargetType.Float))
+            } else if (dest.equals(TargetType.Float))
                 mv.visitInsn(L2F);
             else if (dest.equals(TargetType.Double))
                 mv.visitInsn(L2D);
@@ -280,8 +277,6 @@ public class Codegen {
                 mv.visitInsn(I2F);
             else if (dest.equals(TargetType.Double))
                 mv.visitInsn(I2D);
-        } else if (source.equals(TargetType.Boolean)) {
-            unboxPrimitive(state, dest);
         } else if (isFunctionalInterface(source) && isFunctionalInterface(dest) &&
                 !(source instanceof TargetFunNType && dest instanceof TargetFunNType)) {
             boxFunctionalInterface(state, source, dest);
@@ -765,16 +760,6 @@ public class Codegen {
         }
     }
 
-    private static TargetType removeGenerics(TargetType param) {
-        return switch (param) {
-            case null -> null;
-            case TargetFunNType funNType -> new TargetFunNType(funNType.name(), funNType.funNParams(), List.of(), funNType.returnArguments());
-            case TargetRefType refType -> new TargetRefType(refType.name());
-            case TargetGenericType targetGenericType -> TargetType.Object;
-            default -> param;
-        };
-    }
-
     private void generateLambdaExpression(State state, TargetLambdaExpression lambda) {
         var mv = state.mv;
 
@@ -786,8 +771,7 @@ public class Codegen {
 
         var parameters = new ArrayList<>(lambda.captures());
         parameters.addAll(signature.parameters());
-        parameters = parameters.stream().map(param -> param.withType(removeGenerics(param.pattern().type()))).collect(Collectors.toCollection(ArrayList::new));
+        var implSignature = new TargetMethod.Signature(Set.of(), parameters, lambda.signature().returnType());
-        var implSignature = new TargetMethod.Signature(Set.of(), parameters, removeGenerics(lambda.signature().returnType()));
 
         TargetMethod impl;
         if (lambdas.containsKey(lambda)) {
@@ -795,21 +779,20 @@ public class Codegen {
         } else {
             var name = "lambda$" + lambdaCounter++;
 
-            impl = new TargetMethod(state.isStatic ? ACC_STATIC : 0, name, lambda.block(), implSignature, null);
+            impl = new TargetMethod(0, name, lambda.block(), implSignature, null);
-            generateMethod(impl, state);
+            generateMethod(impl);
             lambdas.put(lambda, impl);
         }
 
         var mt = MethodType.methodType(CallSite.class, MethodHandles.Lookup.class, String.class, MethodType.class, MethodType.class, MethodHandle.class, MethodType.class);
 
         var bootstrap = new Handle(H_INVOKESTATIC, "java/lang/invoke/LambdaMetafactory", "metafactory", mt.toMethodDescriptorString(), false);
-        var handle = new Handle(state.isStatic ? H_INVOKESTATIC : H_INVOKEVIRTUAL, clazz.getName(), impl.name(), implSignature.getDescriptor(), false);
+        var handle = new Handle(H_INVOKEVIRTUAL, clazz.getName(), impl.name(), implSignature.getDescriptor(), false);
 
         var params = new ArrayList<TargetType>();
-        if(!state.isStatic) params.add(new TargetRefType(clazz.qualifiedName().getClassName()));
+        params.add(new TargetRefType(clazz.qualifiedName().getClassName()));
         params.addAll(lambda.captures().stream().map(mp -> mp.pattern().type()).toList());
 
-        if (!state.isStatic)
         mv.visitVarInsn(ALOAD, 0);
         for (var index = 0; index < lambda.captures().size(); index++) {
             var capture = lambda.captures().get(index);
@@ -1538,7 +1521,7 @@ public class Codegen {
         MethodVisitor mv = cw.visitMethod(ACC_PUBLIC | ACC_STATIC, "<clinit>", "()V", null, null);
         mv.visitCode();
 
-        var state = new State(null, mv, 0, true);
+        var state = new State(null, mv, 0);
         generate(state, constructor.block());
 
         mv.visitInsn(RETURN);
@@ -1552,7 +1535,7 @@ public class Codegen {
             mv.visitAttribute(new JavaTXSignatureAttribute(constructor.getTXSignature()));
         
         mv.visitCode();
-        var state = new State(null, mv, 1, false);
+        var state = new State(null, mv, 1);
         for (var param : constructor.parameters()) {
             var pattern = param.pattern();
             if (pattern instanceof TargetTypePattern tp)
@@ -1598,31 +1581,9 @@ public class Codegen {
             }
         }
     }
+
     private void generateMethod(TargetMethod method) {
-        generateMethod(method, null);
-    }
-
-    private void generateMainMethod() {
-        var mv = cw.visitMethod(ACC_PUBLIC | ACC_STATIC, "main", "([Ljava/lang/String;)V", null, null);
-        mv.visitCode();
-        mv.visitVarInsn(ALOAD, 0);
-        mv.visitMethodInsn(INVOKESTATIC, "java/util/List", "of", "([Ljava/lang/Object;)Ljava/util/List;", true);
-        mv.visitMethodInsn(INVOKESTATIC, className, "main", "(Ljava/util/List;)V", false);
-        mv.visitInsn(RETURN);
-        mv.visitMaxs(0, 0);
-        mv.visitEnd();
-    }
-
-    private void generateMethod(TargetMethod method, State parent) {
         var access = method.access();
-
-        var params = method.signature().parameters();
-        if (method.name().equals("main") && method.isStatic() && params.size() == 1 &&
-            params.getFirst().pattern().type().equals(new TargetRefType("java.util.List", List.of(new TargetRefType("java.lang.String"))))) {
-
-            generateMainMethod();
-        }
-
         if (method.block() == null)
             access |= ACC_ABSTRACT;
         if (clazz instanceof TargetInterface)
@@ -1636,10 +1597,7 @@ public class Codegen {
 
         if (method.block() != null) {
             mv.visitCode();
-            var state = new State(method.signature().returnType(), mv, method.isStatic() ? 0 : 1, method.isStatic());
+            var state = new State(method.signature().returnType(), mv, method.isStatic() ? 0 : 1);
-            if (parent != null) {
-                state.scope.parent = parent.scope;
-            }
             var offset = 1;
             for (var param : method.signature().parameters()) {
                 state.createVariable(param.pattern().name(), param.pattern().type());
@@ -1649,8 +1607,6 @@ public class Codegen {
                     bindLocalVariables(state, cp, offset);
                 offset++;
             }
-            //if (parent != null) System.out.println("parent: " + parent.scope.locals.keySet());
-            //System.out.println(state.scope.locals.keySet());
             generate(state, method.block());
             if (method.signature().returnType() == null)
                 mv.visitInsn(RETURN);
@@ -1757,7 +1713,7 @@ public class Codegen {
 
             // Generate wrapper method
             var mv = cw2.visitMethod(ACC_PUBLIC, toMethod.name, toDescriptor, null, null);
-            var state = new State(null, mv, 0, false);
+            var state = new State(null, mv, 0);
 
             mv.visitVarInsn(ALOAD, 0);
             mv.visitFieldInsn(GETFIELD, className, "wrapped", pair.from.toDescriptor());
@@ -1789,7 +1745,7 @@ public class Codegen {
                 converter.classLoader.findClass(className);
             } catch (ClassNotFoundException e) {
                 try {
-                    converter.classLoader.loadClass(className, bytes);
+                    converter.classLoader.loadClass(bytes);
                 } catch (LinkageError ignored) {}
             }
         }

src/main/java/de/dhbwstuttgart/bytecode/FunNGenerator.java

@@ -39,10 +39,6 @@ public class FunNGenerator {
         public final List<TargetType> inParams;
         public final List<TargetType> realParams;
 
-        public GenericParameters(TargetFunNType funNType) {
-            this(funNType.funNParams(), funNType.returnArguments());
-        }
-
         public GenericParameters(List<TargetType> params, int numReturns) {
             this.realParams = params;
             this.inParams = flattenTypeParams(params);

src/main/java/de/dhbwstuttgart/core/JavaTXCompiler.java

@@ -24,6 +24,7 @@ import de.dhbwstuttgart.syntaxtree.ParameterList;
 import de.dhbwstuttgart.syntaxtree.SourceFile;
 import de.dhbwstuttgart.syntaxtree.GenericDeclarationList;
 import de.dhbwstuttgart.syntaxtree.factory.ASTFactory;
+import de.dhbwstuttgart.syntaxtree.factory.NameGenerator;
 import de.dhbwstuttgart.syntaxtree.factory.UnifyTypeFactory;
 import de.dhbwstuttgart.syntaxtree.type.ExtendsWildcardType;
 import de.dhbwstuttgart.syntaxtree.type.GenericRefType;
@@ -100,6 +101,8 @@ public class JavaTXCompiler {
 	public JavaTXCompiler(List<File> sources, List<File> contextPath, File outputPath) throws IOException, ClassNotFoundException {
 		// ensure new default placeholder registry for tests
 		defaultClientPlaceholderRegistry = new PlaceholderRegistry();
+		NameGenerator.reset();
+		ASTToTargetAST.OBJECT = ASTFactory.createObjectType();
 
 		var path = new ArrayList<>(contextPath);
 		if (contextPath.isEmpty()) {
@@ -401,14 +404,10 @@ public class JavaTXCompiler {
 		logger.debug("\nUnify_distributeInnerVars: " + unifyCons.toString());
 		// Set<Set<UnifyPair>> results = new HashSet<>(); Nach vorne gezogen
 		logger.debug("FC:\\" + finiteClosure.toString() + "\n");
+		logger.debug(ASTTypePrinter.print(sf));
 		logger.info(ASTTypePrinter.print(sf));
 		// logFile.flush();
-    List<UnifyPair> andConstraintsSorted = unifyCons.getUndConstraints().stream()
+		logger.info("Unify nach Oder-Constraints-Anpassung:" + unifyCons.toString());
-        .sorted(Comparator.comparing(UnifyPair::getPairOp).thenComparing(UnifyPair::getLhsType, Comparator.comparing(UnifyType::getName)))
-        .collect(Collectors.toList());
-
-    logger.info(andConstraintsSorted);
-
 		Set<PlaceholderType> varianceTPHold;
 		Set<PlaceholderType> varianceTPH = new HashSet<>();
 		varianceTPH = varianceInheritanceConstraintSet(unifyCons);
@@ -425,6 +424,7 @@ public class JavaTXCompiler {
 		/*
 		 * Set<Set<UnifyPair>> ret = new HashSet<>(); for (Constraint<UnifyPair> y : x) { ret.add(new HashSet<>(y)); } return ret; }).collect(Collectors.toCollection(ArrayList::new))
 		 */;
+
 		if (ConsoleInterface.unifyServerUrl.isPresent()) {
 			UnifyResultModel urm = new UnifyResultModel(cons, finiteClosure);
 			UnifyContext context = new UnifyContext(logger, true, urm, usedTasks, placeholderRegistry);
@@ -441,14 +441,10 @@ public class JavaTXCompiler {
 			urm.addUnifyResultListener(li);
 			UnifyContext context = new UnifyContext(logger, true, urm, usedTasks, placeholderRegistry);
 			TypeUnify.unifyParallel(unifyCons.getUndConstraints(), oderConstraints, finiteClosure, context);
-        var finalResults = li.getResults().stream().sorted().toList();
+			logger.info("RESULT Final: " + li.getResults());
-        int i = 0;
+			logger.info("Constraints for Generated Generics: " + " ???");
-        logger.info("RESULT Final: ");
+			logFile.write("RES_FINAL: " + li.getResults().toString() + "\n");
-        for (var result : finalResults){
+			// logFile.flush();
-          logger.info("Result: " + i++);
-          logger.info(result.getSortedResults());
-        }
-        logger.info("RES_FINAL: " + li.getResults().toString() + "\n");
 			return li.getResults();
 		}
 		/* UnifyResultModel End */
@@ -459,6 +455,8 @@ public class JavaTXCompiler {
 			UnifyContext context = new UnifyContext(logger, false, new UnifyResultModel(cons, finiteClosure), usedTasks, placeholderRegistry);
 			Set<Set<UnifyPair>> result = TypeUnify.unifyOderConstraints(unifyCons.getUndConstraints(), oderConstraints, finiteClosure, context);
 			logger.info("RESULT: " + result);
+			logFile.write("RES: " + result.toString() + "\n");
+			// logFile.flush();
 			results.addAll(result);
 
 			results = results.stream().map(x -> {
@@ -653,12 +651,12 @@ public class JavaTXCompiler {
 			var codegen = new Codegen(converter.convert(clazz), this, converter);
 			var code = codegen.generate();
 			generatedClasses.put(clazz.getClassName(), code);
-		}
-		generatedGenerics.put(sf, converter.javaGenerics());
-		converter.generateFunNTypes();
 			converter.auxiliaries.forEach((name, source) -> {
 				generatedClasses.put(new JavaClassName(name), source);
 			});
+		}
+		generatedGenerics.put(sf, converter.javaGenerics());
+		converter.generateFunNTypes();
 		return generatedClasses;
 	}
 

src/main/java/de/dhbwstuttgart/environment/ByteArrayClassLoader.java

@@ -0,0 +1,13 @@
+package de.dhbwstuttgart.environment;
+
+public class ByteArrayClassLoader extends ClassLoader implements IByteArrayClassLoader {
+    @Override
+    public Class _defineClass(String name, byte[] code, int i, int length) throws ClassFormatError {
+        return defineClass(name, code, i, length);
+    }
+
+    @Override
+    public Class<?> findClass(String name) throws ClassNotFoundException {
+        return super.findClass(name);
+    }
+}

src/main/java/de/dhbwstuttgart/environment/IByteArrayClassLoader.java

@@ -6,22 +6,18 @@ import java.nio.file.Path;
 
 public interface IByteArrayClassLoader {
 
-    Class<?> loadClass(String path) throws ClassNotFoundException;
+    Class loadClass(String path) throws ClassNotFoundException;
 
-    default Class<?> loadClass(byte[] code) {
+    default Class loadClass(byte[] code) {
-        return this.loadClass(null, code);
+        return this._defineClass(null, code, 0, code.length);
     }
 
-    default Class<?> loadClass(String name, byte[] code) {
+    default Class loadClass(Path path) throws IOException {
-        return this._defineClass(name, code, 0, code.length);
-    }
-
-    default Class<?> loadClass(Path path) throws IOException {
         var code = Files.readAllBytes(path);
         return this._defineClass(null, code, 0, code.length);
     }
 
     public Class<?> findClass(String name) throws ClassNotFoundException;
 
-    Class<?> _defineClass(String name, byte[] code, int i, int length) throws ClassFormatError;
+    Class _defineClass(String name, byte[] code, int i, int length) throws ClassFormatError;
 }

src/main/java/de/dhbwstuttgart/parser/SyntaxTreeGenerator/StatementGenerator.java

@@ -1100,9 +1100,9 @@ public class StatementGenerator {
             block = lambdaGenerator.convert(expression.lambdaBody().block(), true);
         }
         List<RefTypeOrTPHOrWildcardOrGeneric> funNParams = new ArrayList<>();
-        funNParams.add(TypePlaceholder.fresh(expression.getStart(), -1, false));// ret-Type
+        funNParams.add(TypePlaceholder.fresh(expression.getStart()));// ret-Type
         params.getFormalparalist().forEach(formalParameter -> // Für jeden Parameter einen TPH anfügen:
-        	funNParams.add(TypePlaceholder.fresh(expression.getStart(), 1, false)));
+        funNParams.add(TypePlaceholder.fresh(expression.getStart())));
         RefTypeOrTPHOrWildcardOrGeneric lambdaType = TypePlaceholder.fresh(expression.getStart());
         // RefType lambdaType = new
         // RefType(reg.getName("Fun"+params.getFormalparalist().size()),

src/main/java/de/dhbwstuttgart/parser/scope/JavaClassRegistry.java

@@ -7,7 +7,7 @@ import java.util.*;
 /**
  * Speichert die Klassen f<>r einen bestimmten Projektscope
  */
-public class JavaClassRegistry{
+public class JavaClassRegistry {
     final Map<JavaClassName, Integer> existingClasses = new HashMap<>();
 
     public JavaClassRegistry(Map<String, Integer> initialNames) {
@@ -22,10 +22,6 @@ public class JavaClassRegistry{
         }
     }
 
-    public Set<JavaClassName> getAllClassNames(){
-        return existingClasses.keySet();
-    }
-
     public void addName(String className, int numberOfGenerics) {
         existingClasses.put(new JavaClassName(className), numberOfGenerics);
     }

src/main/java/de/dhbwstuttgart/server/packet/dataContainers/serialized/SerialMap.java

@@ -3,7 +3,7 @@ package de.dhbwstuttgart.server.packet.dataContainers.serialized;
 import com.fasterxml.jackson.annotation.JsonIgnore;
 import java.util.HashMap;
 import java.util.Map;
-import org.jspecify.annotations.Nullable;
+import javax.annotation.Nullable;
 
 public class SerialMap extends HashMap<String, ISerialNode> implements ISerialNode {
 

src/main/java/de/dhbwstuttgart/target/generate/ASTToTargetAST.java

@@ -2,6 +2,7 @@ package de.dhbwstuttgart.target.generate;
 
 import de.dhbwstuttgart.bytecode.FunNGenerator;
 import de.dhbwstuttgart.core.JavaTXCompiler;
+import de.dhbwstuttgart.environment.ByteArrayClassLoader;
 import de.dhbwstuttgart.environment.IByteArrayClassLoader;
 import de.dhbwstuttgart.exceptions.DebugException;
 import de.dhbwstuttgart.parser.NullToken;
@@ -11,8 +12,6 @@ import de.dhbwstuttgart.syntaxtree.Record;
 import de.dhbwstuttgart.syntaxtree.factory.ASTFactory;
 import de.dhbwstuttgart.syntaxtree.statement.*;
 import de.dhbwstuttgart.syntaxtree.type.*;
-import de.dhbwstuttgart.syntaxtree.visual.ASTPrinter;
-import de.dhbwstuttgart.syntaxtree.visual.OutputGenerator;
 import de.dhbwstuttgart.target.Target;
 import de.dhbwstuttgart.target.tree.*;
 import de.dhbwstuttgart.target.tree.expression.*;
@@ -68,11 +67,11 @@ public class ASTToTargetAST {
     public IByteArrayClassLoader classLoader;
     protected SourceFile sourceFile;
 
-    public ASTToTargetAST(List<ResultSet> resultSets, IByteArrayClassLoader classLoader) {
+    public ASTToTargetAST(List<ResultSet> resultSets) {
-        this(null, resultSets, classLoader);
+        this(null, resultSets);
     }
-    public ASTToTargetAST(JavaTXCompiler compiler, List<ResultSet> resultSets, IByteArrayClassLoader classLoader) {
+    public ASTToTargetAST(JavaTXCompiler compiler, List<ResultSet> resultSets) {
-        this(compiler, resultSets, null, classLoader);
+        this(compiler, resultSets, null, new ByteArrayClassLoader());
     }
 
     public ASTToTargetAST(JavaTXCompiler compiler, List<ResultSet> resultSets, SourceFile sourceFile, IByteArrayClassLoader classLoader) {
@@ -783,15 +782,7 @@ public class ASTToTargetAST {
         return TargetFunNType.fromParams(params, filteredParams, gep.getReturnType() != null ? 1 : 0);
     }
 
-    private FunNGenerator.GenericParameters convertToParameters(TargetFunNType input) {
-        return null;
-    }
-
     private boolean isSubtype(TargetType test, TargetType other) {
-        if (other.equals(TargetType.Object)) return true;
-        if (test instanceof TargetFunNType tfun && other instanceof TargetFunNType ofun)
-            return isSubtype(new FunNGenerator.GenericParameters(tfun), new FunNGenerator.GenericParameters(ofun));
-
         var testClass = compiler.getClass(new JavaClassName(test.name()));
         var otherClass = compiler.getClass(new JavaClassName(other.name()));
         if (testClass == null) return false;
@@ -828,6 +819,14 @@ public class ASTToTargetAST {
                 .toList();
 
             var code = FunNGenerator.generateSpecializedBytecode(gep, superInterfaces);
+
+            try {
+                classLoader.findClass(entry.getKey());
+            } catch (ClassNotFoundException e) {
+                try {
+                    classLoader.loadClass(code);
+                } catch (LinkageError ignored) {}
+            }
             auxiliaries.put(entry.getKey(), code);
         }
     }
@@ -858,7 +857,7 @@ public class ASTToTargetAST {
                             classLoader.findClass(superClassName);
                         } catch (ClassNotFoundException e) {
                             try {
-                                classLoader.loadClass(superClassName, code);
+                                classLoader.loadClass(code);
                             } catch (LinkageError ignored) {}
                         }
                         auxiliaries.put(superClassName, code);

src/main/java/de/dhbwstuttgart/target/generate/StatementToTargetExpression.java

@@ -1,6 +1,5 @@
 package de.dhbwstuttgart.target.generate;
 
-import de.dhbwstuttgart.core.JavaTXCompiler;
 import de.dhbwstuttgart.exceptions.DebugException;
 import de.dhbwstuttgart.exceptions.NotImplementedException;
 import de.dhbwstuttgart.parser.SyntaxTreeGenerator.AssignToLocal;
@@ -15,8 +14,8 @@ import de.dhbwstuttgart.target.tree.expression.*;
 import de.dhbwstuttgart.target.tree.type.*;
 
 import java.lang.reflect.Modifier;
-import java.sql.Array;
 import java.util.*;
+import java.util.concurrent.atomic.AtomicBoolean;
 import java.util.stream.Collectors;
 import java.util.stream.StreamSupport;
 
@@ -34,17 +33,19 @@ public class StatementToTargetExpression implements ASTVisitor {
         throw new NotImplementedException();
     }
 
-    private class LambdaCaptureFinder extends TracingStatementVisitor {
+    @Override
+    public void visit(LambdaExpression lambdaExpression) {
+        var parameters = StreamSupport.stream(lambdaExpression.params.spliterator(), false)
+                .map(p -> (FormalParameter) p)
+                .map(p -> new MethodParameter(new TargetTypePattern(converter.convert(p.getType()), p.getName())))
+                .toList();
 
+        List<MethodParameter> captures = new ArrayList<>();
+        lambdaExpression.methodBody.accept(new TracingStatementVisitor() {
             // TODO The same mechanism is implemented in Codegen, maybe use it from there?
             final Stack<Set<String>> localVariables = new Stack<>();
-        private final List<MethodParameter> parameters;
+            {
-        private final List<MethodParameter> captures;
-
-        LambdaCaptureFinder(List<MethodParameter> parameters, List<MethodParameter> captures) {
                 localVariables.push(new HashSet<>());
-            this.parameters = parameters;
-            this.captures = captures;
             }
 
             boolean hasLocalVar(String name) {
@@ -78,27 +79,8 @@ public class StatementToTargetExpression implements ASTVisitor {
 
             @Override
             public void visit(LambdaExpression lambda) {
-            var newCaptures = new ArrayList<MethodParameter>();
+            } // Don't look at lambda expressions
-            var captureFinder = new LambdaCaptureFinder(createParameters(lambda), newCaptures);
+        });
-            lambda.methodBody.accept(captureFinder);
-            newCaptures.removeAll(parameters);
-            captures.addAll(newCaptures);
-        }
-    }
-
-    private List<MethodParameter> createParameters(LambdaExpression lambda) {
-        return StreamSupport.stream(lambda.params.spliterator(), false)
-            .map(p -> (FormalParameter) p)
-            .map(p -> new MethodParameter(new TargetTypePattern(converter.convert(p.getType()), p.getName())))
-            .toList();
-    }
-
-    @Override
-    public void visit(LambdaExpression lambdaExpression) {
-        var parameters = createParameters(lambdaExpression);
-        List<MethodParameter> captures = new ArrayList<>();
-        var visitor = new LambdaCaptureFinder(parameters, captures);
-        lambdaExpression.methodBody.accept(visitor);
 
         TargetMethod.Signature signature = new TargetMethod.Signature(Set.of(), parameters, converter.convert(lambdaExpression.getReturnType()));;
         var tpe = converter.convert(lambdaExpression.getType());
@@ -139,10 +121,7 @@ public class StatementToTargetExpression implements ASTVisitor {
 
     @Override
     public void visit(BoolExpression bool) {
-        result = switch(bool.operation) {
+        Target.logger.info("BoolExpression");
-        case OR -> new TargetBinaryOp.Or(converter.convert(bool.getType()), converter.convert(bool.lexpr), converter.convert(bool.rexpr));
-        case AND -> new TargetBinaryOp.And(converter.convert(bool.getType()), converter.convert(bool.lexpr), converter.convert(bool.rexpr));
-        };
     }
 
     @Override
@@ -240,6 +219,22 @@ public class StatementToTargetExpression implements ASTVisitor {
         if (methodCall.receiver instanceof ExpressionReceiver expressionReceiver && expressionReceiver.expr instanceof This) {
             if (receiverClass == null) throw new DebugException("Class " + receiverName + " does not exist!");
             var thisMethod = converter.findMethod(receiverClass, methodCall.name, signature);
+            if (thisMethod.isEmpty()) {
+                Target.logger.error("Expected: " + receiverClass.getClassName() + "." + methodCall.name + "(" +
+                  signature.stream().map(TargetType::toSignature).collect(Collectors.joining())+ ")" );
+
+                AtomicBoolean hasM = new AtomicBoolean(false);
+                receiverClass.getMethods().forEach(m -> {
+                    if (Objects.equals(m.getName(), methodCall.name)) {
+                        hasM.set(true);
+                        Target.logger.error("But only has: " + m.name + "(" +
+                          m.getParameterList().getFormalparalist().stream().map(t -> t.getType().toString()).collect(Collectors.joining())+ ")" );
+                    }
+                });
+                if (!hasM.get())
+                    Target.logger.error("But does not contain method at all");
+            }
+
             ClassOrInterface finalReceiverClass = receiverClass;
             foundMethod = thisMethod.orElseGet(() -> findMethod(finalReceiverClass.getSuperClass().getName(), methodCall.name, signature).orElseThrow());
         } else if (!isFunNType) {

src/main/java/de/dhbwstuttgart/typeinference/constraints/Constraint.java

@@ -9,13 +9,18 @@ import de.dhbwstuttgart.server.packet.dataContainers.serialized.SerialUUID;
 import de.dhbwstuttgart.typeinference.unify.UnifyContext;
 import de.dhbwstuttgart.typeinference.unify.model.UnifyPair;
 
+import java.util.ArrayList;
 import java.util.HashSet;
+import java.util.List;
+import java.util.Map;
+import java.util.Objects;
 import java.util.Optional;
 import java.util.Set;
 import java.util.function.Function;
 import java.util.stream.Collectors;
+import javax.annotation.Nullable;
 
-public class Constraint<A extends IConstraintElement> extends HashSet<A> implements Comparable<Constraint<A>>, ISerializableData {
+public class Constraint<A extends IConstraintElement> extends HashSet<A> implements ISerializableData {
   private static final long serialVersionUID = 1L;
   private boolean isInherited = false;//wird beides nur für die Method-Constraints benoetigt
   private boolean isImplemented = false;
@@ -96,12 +101,6 @@ public class Constraint<A extends IConstraintElement> extends HashSet<A> impleme
     return super.toString();
   }
 
-
-  @Override
-  public int compareTo(Constraint<A> o) {
-    return this.toString().compareTo(o.toString());
-  }
-
   private String serialUUID = null;
 
   @Override
@@ -168,4 +167,5 @@ public class Constraint<A extends IConstraintElement> extends HashSet<A> impleme
 
     return keyStorage.getUnserialized(uuid, Constraint.class);
   }
+
 }

src/main/java/de/dhbwstuttgart/typeinference/result/ResultPair.java

@@ -11,7 +11,7 @@ import de.dhbwstuttgart.typeinference.unify.UnifyContext;
  * Paare, welche das Unifikationsergebnis darstellen
  */
 public abstract class ResultPair<A extends RefTypeOrTPHOrWildcardOrGeneric,B extends RefTypeOrTPHOrWildcardOrGeneric>
-  implements Comparable<ResultPair<A,B>>, ISerializableData {
+implements ISerializableData {
     private final A left;
     private final B right;
 
@@ -65,16 +65,6 @@ public abstract class ResultPair<A extends RefTypeOrTPHOrWildcardOrGeneric,B ext
 		return true;
 	}
 
-	@Override
-	public int compareTo(ResultPair<A, B> o) {
-		if (o == null) {
-			return 1; // this is greater than null
-		}
-
-		return o.left.toString().compareTo(this.left.toString());
-	}
-
-
 
 	@Override
 	public SerialMap toSerial(KeyStorage keyStorage) {

src/main/java/de/dhbwstuttgart/typeinference/result/ResultSet.java

@@ -11,7 +11,6 @@ import de.dhbwstuttgart.util.Logger;
 import java.util.ArrayList;
 import java.util.Comparator;
 import java.util.HashSet;
-import java.util.List;
 import java.util.Set;
 
 import de.dhbwstuttgart.exceptions.NotImplementedException;
@@ -24,12 +23,12 @@ import de.dhbwstuttgart.syntaxtree.type.TypePlaceholder;
 import java.util.stream.Collectors;
 
 @SuppressWarnings("rawtypes")
-public class ResultSet implements Comparable<ResultSet>, ISerializableData {
+public class ResultSet implements ISerializableData {
 
   public final Set<ResultPair> results;
   public Set<ResultPair<TypePlaceholder, TypePlaceholder>> genIns;
 
-    public ResultSet(Set<ResultPair> set){
+  public ResultSet(Set<ResultPair> set) {
     this.results = set;
     this.genIns = TypeUnifyTaskHelper.getPresizedHashSet(results.size());
     results.forEach(x -> {
@@ -39,10 +38,6 @@ public class ResultSet implements Comparable<ResultSet>, ISerializableData {
     });
   }
 
-    public List<ResultPair> getSortedResults() {
-      return results.stream().sorted().toList();
-    }
-
   public boolean contains(ResultPair toCheck) {
     return this.results.contains(toCheck);
   }
@@ -97,21 +92,6 @@ public class ResultSet implements Comparable<ResultSet>, ISerializableData {
     return results.hashCode();
   }
 
-  @Override
-  public int compareTo(ResultSet o) {
-    List<ResultPair> thisSorted = this.getSortedResults();
-    List<ResultPair> otherSorted = o.getSortedResults();
-    int sizeCompare = Integer.compare(thisSorted.size(), otherSorted.size());
-    if (sizeCompare != 0) return sizeCompare;
-
-    for (int i = 0; i < thisSorted.size(); i++) {
-      int cmp = thisSorted.get(i).compareTo(otherSorted.get(i));
-      if (cmp != 0) return cmp;
-    }
-
-    return 0;
-  }
-
   @Override
   public SerialMap toSerial(KeyStorage keyStorage) {
     SerialMap serialized = new SerialMap();;

src/main/java/de/dhbwstuttgart/typeinference/typeAlgo/TYPE.java

@@ -1,7 +1,6 @@
 package de.dhbwstuttgart.typeinference.typeAlgo;
 
 import de.dhbwstuttgart.exceptions.DebugException;
-import de.dhbwstuttgart.parser.NullToken;
 import de.dhbwstuttgart.parser.SourceLoc;
 import de.dhbwstuttgart.parser.antlr.Java17Parser;
 import de.dhbwstuttgart.parser.scope.JavaClassName;
@@ -10,11 +9,9 @@ import de.dhbwstuttgart.syntaxtree.factory.ASTFactory;
 import de.dhbwstuttgart.syntaxtree.statement.Statement;
 import de.dhbwstuttgart.syntaxtree.type.RefType;
 import de.dhbwstuttgart.syntaxtree.type.RefTypeOrTPHOrWildcardOrGeneric;
-import de.dhbwstuttgart.target.tree.type.TargetRefType;
 import de.dhbwstuttgart.typeinference.assumptions.FieldAssumption;
 import de.dhbwstuttgart.typeinference.assumptions.TypeInferenceBlockInformation;
 import de.dhbwstuttgart.typeinference.assumptions.TypeInferenceInformation;
-import de.dhbwstuttgart.typeinference.constraints.Constraint;
 import de.dhbwstuttgart.typeinference.constraints.ConstraintSet;
 import de.dhbwstuttgart.typeinference.constraints.Pair;
 import de.dhbwstuttgart.typeinference.unify.TypeUnifyTaskHelper;
@@ -22,7 +19,6 @@ import de.dhbwstuttgart.typeinference.unify.model.PairOperator;
 import de.dhbwstuttgart.util.BiRelation;
 import org.antlr.v4.runtime.Token;
 
-import java.lang.reflect.Modifier;
 import java.util.*;
 
 public class TYPE {
@@ -92,25 +88,12 @@ public class TYPE {
         TypeInferenceBlockInformation blockInfo = new TypeInferenceBlockInformation(info.getAvailableClasses(), currentClass, m);
         TYPEStmt methodScope = new TYPEStmt(blockInfo);
         ConstraintSet constraintSet = new ConstraintSet();
-
-        if (m.name.equals("main") && Modifier.isStatic(m.modifier) && m.getParameterList().getFormalparalist().size() == 1) {
-            // Add constraint for main method
-            var firstParam = m.getParameterList().getParameterAt(0);
-
-            constraintSet.addUndConstraint(new Pair(firstParam.getType(),
-                new RefType(new JavaClassName("java.util.List"),
-                    List.of(new RefType(new JavaClassName("java.lang.String"), new NullToken())),
-                    new NullToken()),
-                PairOperator.EQUALSDOT));
-        } else {
         m.getParameterList().getFormalparalist().forEach(el -> {
-                if (el instanceof RecordPattern rp){
+            if(el instanceof RecordPattern){
-                    constraintSet.addAll(addRecursiveParameterConstraints(rp, blockInfo));
+                constraintSet.addAll(addRecursiveParameterConstraints((RecordPattern) el, blockInfo));
+
             }
         });
-        }
-
-
         m.block.accept(methodScope);
         constraintSet.addAll(methodScope.getConstraints());
         return constraintSet;

src/main/java/de/dhbwstuttgart/typeinference/typeAlgo/TYPEStmt.java

@@ -75,7 +75,7 @@ public class TYPEStmt implements StatementVisitor {
 
     @Override
     public void visit(LambdaExpression lambdaExpression) {
-        TypePlaceholder tphRetType = TypePlaceholder.fresh(new NullToken(), -1, false);
+        TypePlaceholder tphRetType = TypePlaceholder.fresh(new NullToken());
         List<RefTypeOrTPHOrWildcardOrGeneric> lambdaParams = lambdaExpression.params.getFormalparalist().stream().map((formalParameter -> formalParameter.getType())).collect(Collectors.toList());
         lambdaParams.add(tphRetType);
         // lambdaParams.add(0,tphRetType);
@@ -643,7 +643,6 @@ public class TYPEStmt implements StatementVisitor {
             params.add(resolver.resolve(new GenericRefType(gtv.getName(), new NullToken())));
         }
         RefTypeOrTPHOrWildcardOrGeneric receiverType;
-        
         if (receiver instanceof FunNClass) {
             receiverType = new RefType(new JavaClassName(receiver.getClassName().toString() + "$$"), params, new NullToken()); // new FunN(params);
         } else {

src/main/java/de/dhbwstuttgart/typeinference/unify/cartesianproduct/UnknownVarianceCase.java

@@ -1,6 +1,8 @@
 package de.dhbwstuttgart.typeinference.unify.cartesianproduct;
 
+import de.dhbwstuttgart.exceptions.UnifyCancelException;
 import de.dhbwstuttgart.typeinference.constraints.Constraint;
+import de.dhbwstuttgart.typeinference.unify.TypeUnify2Task;
 import de.dhbwstuttgart.typeinference.unify.TypeUnifyTask;
 import de.dhbwstuttgart.typeinference.unify.UnifyContext;
 import de.dhbwstuttgart.typeinference.unify.interfaces.IFiniteClosure;
@@ -13,12 +15,15 @@ import java.util.List;
 import java.util.Optional;
 import java.util.Set;
 import java.util.concurrent.CompletableFuture;
+import java.util.concurrent.atomic.AtomicBoolean;
 import java.util.stream.Collectors;
 
 public class UnknownVarianceCase extends VarianceCase {
 
   protected final int variance = 0;
 
+  protected final AtomicBoolean shouldBreak = new AtomicBoolean(false);
+
   protected UnknownVarianceCase(boolean isOderConstraint, TypeUnifyTask typeUnifyTask, UnifyContext context) {
     super(isOderConstraint, typeUnifyTask, context);
   }
@@ -46,6 +51,28 @@ public class UnknownVarianceCase extends VarianceCase {
     } else {
       a = nextSetAsList.removeFirst();
     }
+
+    Set<UnifyPair> finalA = a;
+    if (!this.isOderConstraint && optOrigPair != null && optOrigPair.isPresent()) {
+      if (optOrigPair.get().getBasePair().getLhsType() instanceof PlaceholderType) {
+        nextSetasListRest = typeUnifyTask.oup.maxElements(
+          nextSetAsList.stream().filter(a_next -> typeUnifyTask.oup.compare(finalA, a_next) != 1).toList()
+        );
+      } else {
+        nextSetasListRest = typeUnifyTask.oup.minElements(
+          nextSetAsList.stream().filter(a_next -> typeUnifyTask.oup.compare(finalA, a_next) != -1).toList()
+        );
+      }
+    } else if (this.isOderConstraint) {
+      nextSetasListRest = typeUnifyTask.oup.maxElements(
+        nextSetAsList.stream().filter(a_next -> typeUnifyTask.oup.compare(finalA, a_next) != 1).toList()
+      );
+    } else {
+      nextSetasListRest = (nextSetAsList.size() > 5) ? nextSetAsList.subList(0, 5) : nextSetAsList;
+    }
+
+    nextSetAsList.removeAll(nextSetasListRest);
+    // */
   }
 
   @Override
@@ -61,9 +88,98 @@ public class UnknownVarianceCase extends VarianceCase {
     Set<Set<UnifyPair>> result,
     Set<Set<UnifyPair>> aParDef
   ) {
-    elems.add(a);
+    Set<UnifyPair> newEqOrig = new HashSet<>(eq);
-    return typeUnifyTask.unify2(elems, eq, oderConstraints, fc, context.parallel(), rekTiefe, new HashSet<>(methodSignatureConstraint))
+    Set<Set<UnifyPair>> newElemsOrig = new HashSet<>(elems);
-      .thenApply(ComputationResults::new);
+    List<Set<Constraint<UnifyPair>>> newOderConstraintsOrig = new ArrayList<>(oderConstraints);
+    newElemsOrig.add(a);
+    Set<UnifyPair> newMethodSignatureConstraintOrig = new HashSet<>(methodSignatureConstraint);
+    if (isOderConstraint) {
+      methodSignatureConstraint.addAll(((Constraint<UnifyPair>) a).getmethodSignatureConstraint());
+    }
+    TypeUnify2Task forkOrig = new TypeUnify2Task(newElemsOrig, newEqOrig, newOderConstraintsOrig, a, fc, context, rekTiefe, newMethodSignatureConstraintOrig);
+    typeUnifyTask.addChildTask(forkOrig);
+    CompletableFuture<Set<Set<UnifyPair>>> forkOrigFuture = CompletableFuture.supplyAsync(forkOrig::compute, context.executor()).thenCompose(f -> f);
+    CompletableFuture<ComputationResults> resultValues = forkOrigFuture.thenApply(
+      (currentThreadResult) -> {
+        forkOrig.context.logger().debug("final Orig 0");
+        forkOrig.closeLogFile();
+        return new ComputationResults(currentThreadResult);
+      });
+
+    int i = 0;
+    Set<Set<UnifyPair>>[] additionalResults = new HashSet[nextSetasListRest.size()];
+    Constraint<UnifyPair>[] extendConstraints = new Constraint[nextSetasListRest.size()];
+    while (!nextSetasListRest.isEmpty()) {
+      final int finalI = i++;
+
+      Set<UnifyPair> nSaL = nextSetasListRest.removeFirst();
+      context.logger().debug(() -> "0 RM" + nSaL.toString());
+
+      if (this.isOderConstraint) {
+        Constraint<UnifyPair> extendConstraint = ((Constraint<UnifyPair>) nSaL).getExtendConstraint();
+        extendConstraints[finalI] = extendConstraint;
+      }
+      else if (!sameEqSet.isEmpty() && !typeUnifyTask.checkNoContradiction(nSaL, sameEqSet, result)) {
+        TypeUnifyTask.noShortendElements++;
+        continue;
+      }
+
+      Set<UnifyPair> newEq = new HashSet<>(eq);
+      Set<Set<UnifyPair>> newElems = new HashSet<>(elems);
+      List<Set<Constraint<UnifyPair>>> newOderConstraints = new ArrayList<>(oderConstraints);
+      newElems.add(nSaL);
+      Set<UnifyPair> newMethodSignatureConstraint = new HashSet<>(methodSignatureConstraint);
+      if (isOderConstraint) {
+        methodSignatureConstraint.addAll(((Constraint<UnifyPair>) nSaL).getmethodSignatureConstraint());
+      }
+
+      TypeUnify2Task fork = new TypeUnify2Task(newElems, newEq, newOderConstraints, nSaL, fc, context, rekTiefe, newMethodSignatureConstraint);
+      typeUnifyTask.addChildTask(fork);
+      // schedule compute() on another thread
+      CompletableFuture<Set<Set<UnifyPair>>> forkFuture = CompletableFuture.supplyAsync(fork::compute, context.executor()).thenCompose(f -> f);
+      resultValues = resultValues.thenCombine(forkFuture, (compResult, forkResult) -> {
+        additionalResults[finalI] = forkResult;
+        context.logger().error("finalI: " + finalI);
+        return compResult;
+      });
+    }
+
+
+    int finalI1 = i;
+    return resultValues.thenCompose(compResult -> {
+      var oldResult = compResult.mainResult;
+
+      for (int e = 0; e < finalI1; e++) {
+        Set<Set<UnifyPair>> currentResult = additionalResults[e];
+
+        boolean oldResultInvalid = typeUnifyTask.isUndefinedPairSetSet(oldResult);
+        boolean currentResultInvalid = typeUnifyTask.isUndefinedPairSetSet(currentResult);
+
+        if (!oldResult.isEmpty() && !oldResultInvalid) {
+          boolean shouldBreak = this.eraseInvalidSets(rekTiefe, new HashSet<>(), nextSetAsList);
+          if (shouldBreak) {
+            return CompletableFuture.completedFuture(compResult);
+          }
+        }
+
+        if (this.isOderConstraint) {
+          nextSetasListOderConstraints.add(extendConstraints[e]);
+        }
+
+        if (!currentResultInvalid && oldResultInvalid) {
+          //wenn korrektes Ergebnis gefunden alle Fehlerfaelle loeschen
+          oldResult = currentResult;
+        } else if (oldResultInvalid == currentResultInvalid || oldResult.isEmpty()) {
+          //alle Fehlerfaelle und alle korrekten Ergebnis jeweils adden
+          Set<Set<UnifyPair>> finalOldResult = oldResult;
+          context.logger().debug(() -> "RES var1 ADD:" + finalOldResult.toString() + " " + currentResult.toString());
+          oldResult.addAll(currentResult);
+        }
+      }
+
+      compResult.mainResult = oldResult;
+      return CompletableFuture.completedFuture(compResult);
+    });
   }
 
   @Override
@@ -100,10 +216,25 @@ public class UnknownVarianceCase extends VarianceCase {
       nextSetAsList.removeAll(erased);
 
       context.logger().debug("Removed: " + erased);
-
       context.logger().debug("Not Removed: " + nextSetAsList);
 
+      for (Set<UnifyPair> aPar : aParDef) {
+        smallerSetasList.clear();
+        smallerSetasList.addAll(typeUnifyTask.oup.smallerThan(aPar, nextSetAsList));
+        notInherited = smallerSetasList.stream()
+          .filter(x -> !((Constraint<UnifyPair>) x).isInherited())
+          .collect(Collectors.toCollection(ArrayList::new));
+        notErased.clear();
+        notInherited.forEach(x -> notErased.addAll(typeUnifyTask.oup.smallerEqThan(x, smallerSetasList)));
+        erased = new ArrayList<>(smallerSetasList);
+        erased.removeAll(notErased);
+        nextSetAsList.removeAll(erased);
+        context.logger().debug("Removed: " + erased);
+        context.logger().debug("Not Removed: " + nextSetAsList);
       }
+
+    }
+
     return false;
   }
 

src/main/java/de/dhbwstuttgart/typeinference/unify/model/FiniteClosure.java

@@ -1,6 +1,5 @@
 package de.dhbwstuttgart.typeinference.unify.model;
 
-import de.dhbwstuttgart.parser.scope.JavaClassName;
 import de.dhbwstuttgart.server.packet.dataContainers.ISerializableData;
 import de.dhbwstuttgart.server.packet.dataContainers.KeyStorage;
 import de.dhbwstuttgart.server.packet.dataContainers.serialized.SerialList;
@@ -11,7 +10,6 @@ import de.dhbwstuttgart.typeinference.unify.UnifyContext;
 import de.dhbwstuttgart.util.Logger;
 import java.io.IOException;
 import java.io.Writer;
-import java.util.*;
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.HashMap;
@@ -39,16 +37,15 @@ import org.antlr.v4.runtime.Token;
 
 /**
  * The finite closure for the type unification
- *
  * @author Florian Steurer
  */
-public class FiniteClosure //extends Ordering<UnifyType> //entfernt PL 2018-12-11
+public class FiniteClosure implements IFiniteClosure, ISerializableData {
-        implements IFiniteClosure, ISerializableData {
 
 	final JavaTXCompiler compiler;
 	final PlaceholderRegistry placeholderRegistry;
 
 	Logger logger;
+
 	/**
 	 * A map that maps every type to the node in the inheritance graph that contains that type.
 	 */
@@ -98,7 +95,7 @@ public class FiniteClosure //extends Ordering<UnifyType> //entfernt PL 2018-12-1
 			}
 			*/
 			
-            if (pair.getPairOp() != PairOperator.SMALLER)
+			if(pair.getPairOp() != PairOperator.SMALLER)
 				continue;
 			
 			//VERSUCH PL 18-02-06
@@ -107,11 +104,11 @@ public class FiniteClosure //extends Ordering<UnifyType> //entfernt PL 2018-12-1
 			//if (!pair.getLhsType().getTypeParams().arePlaceholders() 
 			//		&& !pair.getRhsType().getTypeParams().arePlaceholders())
 			//	continue;
-            ;
+;			
 			// Add nodes if not already in the graph
-            if (!inheritanceGraph.containsKey(pair.getLhsType()))
+			if(!inheritanceGraph.containsKey(pair.getLhsType()))
 				inheritanceGraph.put(pair.getLhsType(), new Node<UnifyType>(pair.getLhsType()));
-            if (!inheritanceGraph.containsKey(pair.getRhsType()))
+			if(!inheritanceGraph.containsKey(pair.getRhsType()))
 				inheritanceGraph.put(pair.getRhsType(), new Node<UnifyType>(pair.getRhsType()));
 			
 			Node<UnifyType> childNode = inheritanceGraph.get(pair.getLhsType());
@@ -125,50 +122,8 @@ public class FiniteClosure //extends Ordering<UnifyType> //entfernt PL 2018-12-1
 			childNode.getDescendants().stream().forEach(x -> x.addPredecessor(parentNode));
 			
 			//PL eingefuegt 2020-05-07 File UnitTest InheritTest.java
-            this.inheritanceGraph.forEach((x, y) -> {
+			this.inheritanceGraph.forEach((x,y) -> { if (y.getDescendants().contains(parentNode)) { y.addDescendant(childNode); y.addAllDescendant(childNode.getDescendants());};
-                if (y.getDescendants().contains(parentNode)) {
+													 if (y.getPredecessors().contains(childNode)) { y.addPredecessor(parentNode); y.addAllPredecessor(parentNode.getPredecessors());};} );
-                    y.addDescendant(childNode);
-                    y.addAllDescendant(childNode.getDescendants());
-                }
-                ;
-                if (y.getPredecessors().contains(childNode)) {
-                    y.addPredecessor(parentNode);
-                    y.addAllPredecessor(parentNode.getPredecessors());
-                }
-                ;
-            });
-        }
-
-        List<String> classesToKeep = (compiler == null) ? new ArrayList<>() :
-          new ArrayList<>(compiler.classRegistry.getAllClassNames().stream().map(JavaClassName::toString).toList());
-
-        classesToKeep.add("java.lang.Object");
-        classesToKeep.add("java.lang.Number");
-        classesToKeep.add("java.util.Collection");
-        classesToKeep.add("java.lang.Iterable");
-
-        //filter out all types not imported
-        Iterator<Map.Entry<UnifyType, Node<UnifyType>>> iterator = inheritanceGraph.entrySet().iterator();
-
-        while (iterator.hasNext()) {
-            Map.Entry<UnifyType, Node<UnifyType>> entry = iterator.next();
-            var name = entry.getKey().getName();
-
-            if (!classesToKeep.contains(name)) {
-                iterator.remove();
-            } else {
-                Node<UnifyType> node = entry.getValue();
-
-                // Remove unwanted predecessors
-                node.getPredecessors().removeIf(pred ->
-                        !classesToKeep.contains(pred.getContent().getName())
-                );
-
-                // Remove unwanted descendants
-                node.getDescendants().removeIf(desc ->
-                        !classesToKeep.contains(desc.getContent().getName())
-                );
-            }
 		}
 
 		// Build the alternative representation with strings as keys
@@ -199,7 +154,6 @@ public class FiniteClosure //extends Ordering<UnifyType> //entfernt PL 2018-12-1
 
 	/**
 	 * Returns all types of the finite closure that are subtypes of the argument.
-     *
 	 * @return The set of subtypes of the argument.
 	 */
 	@Override
@@ -211,10 +165,10 @@ public class FiniteClosure //extends Ordering<UnifyType> //entfernt PL 2018-12-1
 			return new HashSet<>(ret);
 		}
 		
-        if (type instanceof FunNType)
+		if(type instanceof FunNType)
 			return computeSmallerFunN((FunNType) type, fBounded);
 		
-        Set<Pair<UnifyType, Set<UnifyType>>> ts = new HashSet<>();
+		Set<Pair<UnifyType,Set<UnifyType>>> ts = new HashSet<>();
 		ts.add(new Pair<>(type, fBounded));
 		Set<UnifyType> result = computeSmaller(ts);
 		smallerHash.put(new hashKeyType(type), result);
@@ -246,33 +200,34 @@ public class FiniteClosure //extends Ordering<UnifyType> //entfernt PL 2018-12-1
 			// if T = T' then T <* T'
 			try {
 				result.add(new Pair<>(t, fBounded));
-            } catch (StackOverflowError e) {
+			}
-                //System.out.println("");
+			catch (StackOverflowError e) {
+				// context.logger().info("");
 			}
 			
 			// if C<...> <* C<...> then ... (third case in definition of <*)
-            if (t.getTypeParams().size() > 0) {
+			if(t.getTypeParams().size() > 0) {
 				ArrayList<Set<UnifyType>> paramCandidates = new ArrayList<>();
 				for (int i = 0; i < t.getTypeParams().size(); i++)
 					paramCandidates.add(smArg(t.getTypeParams().get(i), fBounded));
 				permuteParams(paramCandidates).forEach(x -> result.add(new Pair<>(t.setTypeParams(x), fBounded)));
 			}
 			
-            if (!strInheritanceGraph.containsKey(t.getName()))
+			if(!strInheritanceGraph.containsKey(t.getName()))
 				continue;
 			
 			// if T <* T' then sigma(T) <* sigma(T')
 			Set<Node<UnifyType>> candidates = strInheritanceGraph.get(t.getName()); //cadidates= [???Node(java.util.Vector<java.util.Vector<java.lang.Integer>>)???
 			                                                                       // , Node(java.util.Vector<gen_hv>)
 			                                                                         //]
-            for (Node<UnifyType> candidate :  candidates) {
+			for(Node<UnifyType> candidate :  candidates) {
 				UnifyType theta2 = candidate.getContent();
 				//PL 18-02-05 Unifier durch Matcher ersetzt ANFANG
-                ArrayList<UnifyPair> termList = new ArrayList<UnifyPair>();
+				ArrayList<UnifyPair> termList= new ArrayList<UnifyPair>();
-                termList.add(new UnifyPair(theta2, t, PairOperator.EQUALSDOT));
+				termList.add(new UnifyPair(theta2,t, PairOperator.EQUALSDOT));
 				Optional<Unifier> optSigma = match.match(termList);
 				//PL 18-02-05 Unifier durch Matcher ersetzt ENDE
-                if (optSigma.isEmpty())
+				if(!optSigma.isPresent())
 					continue;
 				
 				Unifier sigma = optSigma.get();
@@ -280,13 +235,13 @@ public class FiniteClosure //extends Ordering<UnifyType> //entfernt PL 2018-12-1
 				
 				Set<UnifyType> theta1Set = candidate.getContentOfDescendants();
 				
-                for (UnifyType theta1 : theta1Set)
+				for(UnifyType theta1 : theta1Set)
 					result.add(new Pair<>(theta1.apply(sigma), fBounded));
 			}
 		}
 
-        HashSet<UnifyType> resut = result.stream().map(x -> x.getKey()).collect(Collectors.toCollection(HashSet::new));
+		HashSet<UnifyType> resut = result.stream().map(Pair::getKey).collect(Collectors.toCollection(HashSet::new));
-        if (resut.equals(types.stream().map(x -> x.getKey()).collect(Collectors.toCollection(HashSet::new))))
+		if(resut.equals(types.stream().map(Pair::getKey).collect(Collectors.toCollection(HashSet::new))))
 			return resut;
 		return computeSmaller(result);
 	}
@@ -325,19 +280,19 @@ public class FiniteClosure //extends Ordering<UnifyType> //entfernt PL 2018-12-1
 		}
 	
 		
-        if (type instanceof FunNType) {
+		if(type instanceof FunNType) {
 			return computeGreaterFunN((FunNType) type, fBounded); 
 		}
 		
 		Set<UnifyType> result = new HashSet<>();
-        Set<Pair<UnifyType, Set<UnifyType>>> PairResultFBounded = new HashSet<>();
+		Set<Pair<UnifyType,Set<UnifyType>>> PairResultFBounded = new HashSet<>();
 		
 		Match match = new Match();
 		
 		
 		// if T = T' then T <=* T'
 		result.add(type);
-        if (!strInheritanceGraph.containsKey(type.getName()))
+		if(!strInheritanceGraph.containsKey(type.getName()))
 			return result;
 		
 		// if T <* T' then sigma(T) <* sigma(T')
@@ -353,15 +308,15 @@ public class FiniteClosure //extends Ordering<UnifyType> //entfernt PL 2018-12-1
 		}
 		*/
 		
-        for (Node<UnifyType> candidate : candidates) {
+		for(Node<UnifyType> candidate :  candidates) {
 			UnifyType theta1 = candidate.getContent();
 			
 			//PL 18-04-05 Unifier durch Matcher ersetzt ANFANG
-            ArrayList<UnifyPair> termList = new ArrayList<UnifyPair>();
+			ArrayList<UnifyPair> termList= new ArrayList<UnifyPair>();
-            termList.add(new UnifyPair(theta1, type, PairOperator.EQUALSDOT, location));
+			termList.add(new UnifyPair(theta1,type, PairOperator.EQUALSDOT, location));
 			Optional<Unifier> optSigma = match.match(termList);
 			//PL 18-04-05 Unifier durch Matcher ersetzt ENDE
-            if (optSigma.isEmpty()) {
+			if(!optSigma.isPresent()) {
 				continue;
 			}
 			Unifier sigma = optSigma.get();
@@ -371,7 +326,7 @@ public class FiniteClosure //extends Ordering<UnifyType> //entfernt PL 2018-12-1
 			fBoundedNew.add(theta1);
 			Set<UnifyType> theta2Set = candidate.getContentOfPredecessors();
 			//context.logger().info("");
-            for (UnifyType theta2 : theta2Set) {
+			for(UnifyType theta2 : theta2Set) {
 				result.add(theta2.apply(sigma));
 				PairResultFBounded.add(new Pair<>(theta2.apply(sigma), fBoundedNew));
 			}
@@ -391,13 +346,13 @@ public class FiniteClosure //extends Ordering<UnifyType> //entfernt PL 2018-12-1
 			
 			// if C<...> <* C<...> then ... (third case in definition of <*)	
 			//TypeParams typeparams = t.getTypeParams();
-            if (t.getTypeParams().size() > 0) {
+			if(t.getTypeParams().size() > 0) {
 				ArrayList<Set<UnifyType>> paramCandidates = new ArrayList<>();
 				
 				for (int i = 0; i < t.getTypeParams().size(); i++) {
 					//UnifyType parai = t.getTypeParams().get(i);
 					int i_ef = i;
-                    BiFunction<Boolean, UnifyType, Boolean> f = (x, y) ->
+					BiFunction<Boolean,UnifyType,Boolean> f = (x,y) -> 
 					{
 						ArrayList<UnifyPair> termList = new ArrayList<UnifyPair>();
 					    termList.add(new UnifyPair(y,t.getTypeParams().get(i_ef), PairOperator.EQUALSDOT, location));
@@ -411,7 +366,8 @@ public class FiniteClosure //extends Ordering<UnifyType> //entfernt PL 2018-12-1
 						//F-Bounded Endlosrekursion
 						HashSet<UnifyType> res = new HashSet<UnifyType>();
 						paramCandidates.add(res); 
-                    } else {
+					}
+					else {
 						paramCandidates.add(grArg(t.getTypeParams().get(i), new HashSet<>(fBounded) ));
 					}
 				}
@@ -552,7 +508,7 @@ public class FiniteClosure //extends Ordering<UnifyType> //entfernt PL 2018-12-1
 		Set<UnifyType> result = new HashSet<UnifyType>();
 		result.add(type);	
 		smaller(type, fBounded).forEach(x -> result.add(new SuperType(x)));
-            greater(type, fBounded).forEach(x -> result.add(new ExtendsType(x)));
+		greater(type,fBounded).forEach(x -> result.add(new ExtendsType(x)));
 		return result;
 	}
 	
@@ -560,7 +516,8 @@ public class FiniteClosure //extends Ordering<UnifyType> //entfernt PL 2018-12-1
 	public Set<UnifyType> grArg(FunNType type, Set<UnifyType> fBounded) {
 		Set<UnifyType> smaller = smaller(type, fBounded);
 		Set<UnifyType> greater = greater(type, fBounded);
-        Set<UnifyType> result = TypeUnifyTaskHelper.getPresizedHashSet(1 + smaller.size() + greater.size());
+
+		Set<UnifyType> result = new HashSet<UnifyType>((int)((1 + smaller.size() + greater.size()) * 1.5));
 		result.add(type);	
 		smaller.forEach(x -> result.add(new SuperType(x)));
 		greater.forEach(x -> result.add(new ExtendsType(x)));
@@ -572,7 +529,7 @@ public class FiniteClosure //extends Ordering<UnifyType> //entfernt PL 2018-12-1
 		UnifyType t = type.getExtendedType();
 		Set<UnifyType> greater = greater(t, fBounded);
 
-        Set<UnifyType> result = TypeUnifyTaskHelper.getPresizedHashSet(1 + greater.size());
+		Set<UnifyType> result = new HashSet<UnifyType>((int)((1 + greater.size()) * 1.5));
 		result.add(type);
 		greater.forEach(x -> result.add(new ExtendsType(x)));
 		return result;
@@ -656,18 +613,18 @@ public class FiniteClosure //extends Ordering<UnifyType> //entfernt PL 2018-12-1
 	
 	@Override
 	public Set<UnifyType> getAllTypesByName(String typeName) {
-        if (!strInheritanceGraph.containsKey(typeName))
+		if(!strInheritanceGraph.containsKey(typeName))
 			return new HashSet<>();
-        return strInheritanceGraph.get(typeName).stream().map(x -> x.getContent()).collect(Collectors.toCollection(HashSet::new));
+		return strInheritanceGraph.get(typeName).stream().map(Node::getContent).collect(Collectors.toCollection(HashSet::new));
 	}
 
 	@Override
 	public Optional<UnifyType> getLeftHandedType(String typeName) {
-        if (!strInheritanceGraph.containsKey(typeName))
+		if(!strInheritanceGraph.containsKey(typeName))
 			return Optional.empty();
 		
-        for (UnifyPair pair : pairs)
+		for(UnifyPair pair : pairs)
-            if (pair.getLhsType().getName().equals(typeName) && pair.getLhsType().typeParams.arePlaceholders())
+			if(pair.getLhsType().getName().equals(typeName) && pair.getLhsType().typeParams.arePlaceholders())
 					return Optional.of(pair.getLhsType());
 		
 		return Optional.empty();
@@ -675,11 +632,11 @@ public class FiniteClosure //extends Ordering<UnifyType> //entfernt PL 2018-12-1
 	
 	@Override
 	public Optional<UnifyType> getRightHandedFunctionalInterfaceType(String typeName) {
-        if (!strInheritanceGraph.containsKey(typeName))
+		if(!strInheritanceGraph.containsKey(typeName))
 			return Optional.empty();
 		
-        for (UnifyPair pair : pairs)
+		for(UnifyPair pair : pairs)
-            if (pair.getRhsType().getName().equals(typeName))
+			if(pair.getRhsType().getName().equals(typeName))
 					return Optional.of(pair.getRhsType());
 		
 		return Optional.empty();
@@ -687,7 +644,7 @@ public class FiniteClosure //extends Ordering<UnifyType> //entfernt PL 2018-12-1
 	
 	@Override
 	public Set<UnifyType> getAncestors(UnifyType t) {
-        if (!inheritanceGraph.containsKey(t))
+		if(!inheritanceGraph.containsKey(t))
 			return new HashSet<>();
 		Set<UnifyType> result = inheritanceGraph.get(t).getContentOfPredecessors();
 		result.add(t);
@@ -696,7 +653,7 @@ public class FiniteClosure //extends Ordering<UnifyType> //entfernt PL 2018-12-1
 	
 	@Override
 	public Set<UnifyType> getChildren(UnifyType t) {
-        if (!inheritanceGraph.containsKey(t))
+		if(!inheritanceGraph.containsKey(t))
 			return new HashSet<>();
 		Set<UnifyType> result = inheritanceGraph.get(t).getContentOfDescendants();
 		result.add(t);
@@ -705,7 +662,6 @@ public class FiniteClosure //extends Ordering<UnifyType> //entfernt PL 2018-12-1
 	
 	/**
 	 * Takes a set of candidates for each position and computes all possible permutations.
-     *
 	 * @param candidates The length of the list determines the number of type params. Each set
 	 * contains the candidates for the corresponding position.
 	 */
@@ -717,7 +673,6 @@ public class FiniteClosure //extends Ordering<UnifyType> //entfernt PL 2018-12-1
 	
 	/**
 	 * Takes a set of candidates for each position and computes all possible permutations.
-     *
 	 * @param candidates The length of the list determines the number of type params. Each set
 	 * contains the candidates for the corresponding position.
 	 * @param idx Idx for the current permutatiton.
@@ -725,21 +680,21 @@ public class FiniteClosure //extends Ordering<UnifyType> //entfernt PL 2018-12-1
 	 * @param current The permutation of type params that is currently explored
 	 */
 	protected void permuteParams(ArrayList<Set<UnifyType>> candidates, int idx, Set<TypeParams> result, UnifyType[] current) {
-        if (candidates.size() == idx) {
+		if(candidates.size() == idx) {
 			result.add(new TypeParams(Arrays.copyOf(current, current.length)));
 			return;
 		}
 		
 		Set<UnifyType> localCandidates = candidates.get(idx);
 		
-        for (UnifyType t : localCandidates) {
+		for(UnifyType t : localCandidates) {
 			current[idx] = t;
-            permuteParams(candidates, idx + 1, result, current);
+			permuteParams(candidates, idx+1, result, current);
 		}
 	}
 	
 	@Override
-    public String toString() {
+	public String toString(){
 		return this.inheritanceGraph.toString();
 	}
 	
@@ -750,10 +705,9 @@ public class FiniteClosure //extends Ordering<UnifyType> //entfernt PL 2018-12-1
 	*/
 	
 	public int compare (UnifyType left, UnifyType right, PairOperator pairop, UnifyContext context) {
-        logger.debug(() -> "left: " + left + " right: " + right + " pairop: " + pairop +"\n");
+		logger.debug(() -> "left: "+ left + " right: " + right + " pairop: " + pairop +"\n");
-        //if (left.getName().equals("Matrix") || right.getName().equals("Matrix"))
+		// if (left.getName().equals("Matrix") || right.getName().equals("Matrix"))
 		// 	context.logger().info("");
-
 		/*
 		pairop = PairOperator.SMALLERDOTWC;
 		List<UnifyType> al = new ArrayList<>();
@@ -785,19 +739,21 @@ public class FiniteClosure //extends Ordering<UnifyType> //entfernt PL 2018-12-1
 		UnifyType ex;
 		if (left instanceof PlaceholderType) { 
 				if ((right instanceof WildcardType) 
-                && ((ex = ((WildcardType) right).wildcardedType) instanceof PlaceholderType)
+						&& ((ex = ((WildcardType)right).wildcardedType) instanceof PlaceholderType)
-                && ((PlaceholderType) left).getName().equals(((PlaceholderType) ex).getName())) {// a <.? ? extends a oder a <.? ? super a
+						&& ((PlaceholderType)left).getName().equals(((PlaceholderType)ex).getName())) {// a <.? ? extends a oder a <.? ? super a
 					return -1;
-            } else {
+				}
+				else {
 					return 0;
 				}
 		}
 		if (right instanceof PlaceholderType) {//&& (left instanceof WildcardType)) {PL geloescht 2019-01-15 analog zu oben
 			if ((left instanceof WildcardType) //PL eingefuegt 2019-01-15 analog zu oben
 					&& ((ex = ((WildcardType)left).wildcardedType) instanceof PlaceholderType)
-              && ((PlaceholderType)right).getName().equals(((PlaceholderType) ex).getName())) {// ? extends a <. a oder ? super a <. a
+					&& ((PlaceholderType)right).getName().equals(((PlaceholderType)ex).getName())) {// ? extends a <. a oder ? super a <. a
 				return 1;
-          } else {
+			}
+			else {
 				return 0;
 			}
 		}
@@ -808,17 +764,16 @@ public class FiniteClosure //extends Ordering<UnifyType> //entfernt PL 2018-12-1
 		Set<UnifyPair> smallerRes = unifyTask.applyTypeUnificationRules(hs, this);
 		
 		//if (left.getName().equals("Vector") || right.getName().equals("AbstractList")) 
-        logger.debug(() -> "\nsmallerRes: " + smallerRes); //"smallerHash: " + greaterHash.toString());
+		logger.debug(() -> "\nsmallerRes: " + smallerRes);//"smallerHash: " + greaterHash.toString());
 
 		//Gleichungen der Form a <./=. Theta oder Theta <./=. a oder a <./=. b sind ok.
 		Predicate<UnifyPair> delFun = x -> !((x.getLhsType() instanceof PlaceholderType || 
 											 x.getRhsType() instanceof PlaceholderType)
 								 			 && !((x.getLhsType() instanceof WildcardType) &&   //? extends/super a <.? a 
-                               ((WildcardType) x.getLhsType()).getWildcardedType().equals(x.getRhsType()))
+													 ((WildcardType)x.getLhsType()).getWildcardedType().equals(x.getRhsType()))
 											 );
 		long smallerLen = smallerRes.stream().filter(delFun).count();
-        logger.debug(() -> "\nsmallerLen: " + smallerLen + "\n");
+		logger.debug(() -> "\nsmallerLen: " + smallerLen +"\n");
-
 		if (smallerLen == 0) return -1;
 		else {
 			up = new UnifyPair(right, left, pairop);
@@ -852,4 +807,5 @@ public class FiniteClosure //extends Ordering<UnifyType> //entfernt PL 2018-12-1
 			.map(pairData -> UnifyPair.fromSerial(pairData, context, keyStorage)).collect(Collectors.toSet());
 		return new FiniteClosure(pairs, context.logger(), context.placeholderRegistry());
 	}
+
 }

src/main/java/de/dhbwstuttgart/util/Logger.java

@@ -126,6 +126,20 @@ public class Logger {
     }
   }
 
+  public String findLogCaller() {
+    StackTraceElement[] stackTrace = Thread.currentThread().getStackTrace();
+    final String thisFileName = stackTrace[0].getFileName();
+    int i = 0;
+    StackTraceElement currentElement = stackTrace[i];
+    while (++i < stackTrace.length) {
+      currentElement = stackTrace[i];
+      if (!Objects.equals(thisFileName, currentElement.getFileName())) {
+        break;
+      }
+    }
+    return ".(" + currentElement.getFileName() + ":" + currentElement.getLineNumber() + ")";
+  }
+
   /**
    * Base method for logging a string value. Should mostly be used by the Logger internal functions that
    * abstract the logLevel away from the parameters
@@ -136,6 +150,8 @@ public class Logger {
    */
   public void log(String s, LogLevel logLevel) {
     if (isLogLevelActive(logLevel)) {
+      // prepend the call to the logger instance
+      // s = findLogCaller() + "\n" + s;
       this.print(s, logLevel);
       this.write(s);
     }

src/test/java/AllgemeinTest.java

@@ -1,6 +1,6 @@
 
 
-import static org.junit.jupiter.api.Assertions.*;
+import static org.junit.Assert.*;
 import static targetast.TestCodegen.generateClassFiles;
 
 import java.io.File;
@@ -9,12 +9,13 @@ import java.net.URL;
 import java.net.URLClassLoader;
 import java.util.Arrays;
 
-import org.junit.jupiter.api.BeforeAll;
+import org.junit.BeforeClass;
-import org.junit.jupiter.api.Test;
+import org.junit.Test;
 
 import com.google.common.collect.Lists;
 
 import de.dhbwstuttgart.core.JavaTXCompiler;
+import de.dhbwstuttgart.environment.ByteArrayClassLoader;
 
 public class AllgemeinTest {
 

src/test/java/GenericsParserTest.java

@@ -6,12 +6,12 @@ import de.dhbwstuttgart.syntaxtree.GenericTypeVar;
 import de.dhbwstuttgart.syntaxtree.factory.ASTFactory;
 import de.dhbwstuttgart.syntaxtree.type.*;
 import de.dhbwstuttgart.target.generate.ASTToTargetAST;
-import org.junit.jupiter.api.Test;
+import org.junit.Test;
 
 import java.util.ArrayList;
 import java.util.List;
 
-import static org.junit.jupiter.api.Assertions.*;
+import static org.junit.Assert.*;
 
 public class GenericsParserTest {
 

src/test/java/TestPackages.java

@@ -1,6 +1,6 @@
 import de.dhbwstuttgart.core.JavaTXCompiler;
-import org.junit.jupiter.api.Disabled;
+import org.junit.Ignore;
-import org.junit.jupiter.api.Test;
+import org.junit.Test;
 
 import java.io.File;
 import java.util.List;
@@ -24,7 +24,7 @@ public class TestPackages {
     }
 
     @Test
-    @Disabled("This doesn't work")
+    @Ignore("This doesn't work")
     public void testPackagesCircular() throws Exception {
         var cmp = new JavaTXCompiler(
             List.of(

src/test/java/TestTypeDeployment.java

@@ -4,7 +4,7 @@ import de.dhbwstuttgart.syntaxtree.SourceFile;
 import de.dhbwstuttgart.typedeployment.TypeInsert;
 import de.dhbwstuttgart.typedeployment.TypeInsertFactory;
 import de.dhbwstuttgart.typeinference.result.ResultSet;
-import org.junit.jupiter.api.Test;
+import org.junit.Test;
 
 import java.io.File;
 import java.nio.file.Path;

src/test/java/astfactory/ASTFactoryTest.java

@@ -4,7 +4,7 @@ package astfactory;
 import de.dhbwstuttgart.syntaxtree.ClassOrInterface;
 import de.dhbwstuttgart.syntaxtree.factory.ASTFactory;
 import de.dhbwstuttgart.syntaxtree.type.GenericRefType;
-import org.junit.jupiter.api.Test;
+import org.junit.Test;
 
 import java.lang.reflect.ParameterizedType;
 import java.lang.reflect.Type;
@@ -12,8 +12,7 @@ import java.lang.reflect.TypeVariable;
 import java.util.Arrays;
 import java.util.HashMap;
 
-import static org.junit.jupiter.api.Assertions.assertTrue;
+import static org.junit.Assert.*;
-
 
 public class ASTFactoryTest<A> extends HashMap<String, A>{
     @Test

src/test/java/finiteClosure/SuperInterfacesTest.java

@@ -4,10 +4,12 @@ import de.dhbwstuttgart.core.JavaTXCompiler;
 import de.dhbwstuttgart.parser.SyntaxTreeGenerator.FCGenerator;
 import de.dhbwstuttgart.syntaxtree.ClassOrInterface;
 import de.dhbwstuttgart.syntaxtree.factory.ASTFactory;
-import org.junit.jupiter.api.Test;
+import de.dhbwstuttgart.typeinference.unify.PlaceholderRegistry;
+import org.junit.Test;
 
 import java.util.ArrayList;
 import java.util.Collection;
+import java.util.List;
 
 public class SuperInterfacesTest {
     @Test

src/test/java/server/PacketTest.java

@@ -1,7 +1,7 @@
 package server;
 
 import com.fasterxml.jackson.core.JsonProcessingException;
-import de.dhbwstuttgart.core.JavaTXCompiler;
+import de.dhbwstuttgart.environment.ByteArrayClassLoader;
 import de.dhbwstuttgart.parser.SourceLoc;
 import de.dhbwstuttgart.server.packet.DebugPacket;
 import de.dhbwstuttgart.server.packet.IPacket;
@@ -16,11 +16,18 @@ import de.dhbwstuttgart.server.packet.dataContainers.serialized.SerialUUID;
 import de.dhbwstuttgart.server.packet.dataContainers.serialized.SerialValue;
 import de.dhbwstuttgart.typeinference.constraints.Constraint;
 import de.dhbwstuttgart.typeinference.constraints.ConstraintSet;
+import de.dhbwstuttgart.typeinference.unify.PlaceholderRegistry;
 import de.dhbwstuttgart.typeinference.unify.UnifyContext;
+import de.dhbwstuttgart.typeinference.unify.UnifyResultModel;
+import de.dhbwstuttgart.typeinference.unify.UnifyTaskModel;
+import de.dhbwstuttgart.typeinference.unify.model.FiniteClosure;
 import de.dhbwstuttgart.typeinference.unify.model.UnifyPair;
+import java.io.Writer;
+import java.util.HashSet;
+import java.util.concurrent.ForkJoinPool;
 import java.util.function.BiFunction;
-import org.junit.jupiter.api.Test;
+import org.junit.Test;
-import static org.junit.jupiter.api.Assertions.*;
+import static org.junit.Assert.*;
 
 public class PacketTest {
 

src/test/java/server/ServerTest.java

@@ -35,21 +35,24 @@ import java.util.Set;
 import java.util.concurrent.ExecutorService;
 import java.util.concurrent.Executors;
 import java.util.stream.Collectors;
+import org.junit.Ignore;
+import org.junit.Test;
 import targetast.TestCodegen;
-import static org.junit.jupiter.api.Assertions.*;
+import static org.junit.Assert.*;
 
+@Ignore("Server tests create huge overhead, so they are ignored until required")
 public class ServerTest {
 
   public ServerTest() {
     ConsoleInterface.unifyServerUrl = Optional.of("ws://localhost:5000");
   }
 
-  //@Test
+  @Test
   public void checkServer_Scalar() throws IOException, ClassNotFoundException {
     compareLocalAndServerResult("Scalar.jav");
   }
 
-  //@Test
+  @Test
   public void checkServer_Matrix() throws IOException, ClassNotFoundException {
     compareLocalAndServerResult("Matrix.jav");
   }

src/test/java/syntaxtreegenerator/TestComplete.java

@@ -1,5 +1,9 @@
 package syntaxtreegenerator;
 
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertTrue;
+import static org.junit.Assert.fail;
+
 import java.io.File;
 import java.io.FileFilter;
 import java.io.FileInputStream;
@@ -8,23 +12,21 @@ import java.io.ObjectOutputStream;
 import java.util.ArrayList;
 import java.util.HashMap;
 
-import org.junit.jupiter.api.BeforeAll;
+import org.junit.BeforeClass;
-import org.junit.jupiter.api.Test;
+import org.junit.Test;
 
 import de.dhbwstuttgart.core.JavaTXCompiler;
 import de.dhbwstuttgart.exceptions.NotImplementedException;
 import de.dhbwstuttgart.syntaxtree.SourceFile;
 import de.dhbwstuttgart.syntaxtree.visual.ASTPrinter;
 
-import static org.junit.jupiter.api.Assertions.*;
-
 /**
  * Unit-Tests für den 'SyntaxTreeGenerator' aus dem Package 'parser' nach Vorbild der Klasse 'TestComplete' aus dem Test-Package 'targetast'
  */
 public class TestComplete {
     private static HashMap<String, File[]> javFiles = new HashMap<>();
 
-    @BeforeAll
+    @BeforeClass
     public static void setUp() {
         final String testFileDirectory = "resources/bytecode/javFiles/";
         final String expectedASTDirectory = "resources/syntaxtreegenerator/";
@@ -351,7 +353,7 @@ public class TestComplete {
             assertEquals("Comparing expected and resulting AST for mathStrucInteger.jav", expectedAST, resultingAST);
         } catch (Exception exc) {
             exc.printStackTrace();
-            assertInstanceOf(NotImplementedException.class, exc);
+            assertTrue("An error occured while generating the AST for mathStrucInteger.jav", exc instanceof NotImplementedException);
         }
     }
 

src/test/java/syntaxtreegenerator/TestNewFeatures.java

@@ -1,15 +1,15 @@
 package syntaxtreegenerator;
 
-import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.Assert.assertEquals;
-import static org.junit.jupiter.api.Assertions.fail;
+import static org.junit.Assert.fail;
 
 import java.io.File;
 import java.io.FileFilter;
 import java.io.FileInputStream;
 import java.util.HashMap;
 
-import org.junit.jupiter.api.BeforeAll;
+import org.junit.BeforeClass;
-import org.junit.jupiter.api.Test;
+import org.junit.Test;
 
 import de.dhbwstuttgart.core.JavaTXCompiler;
 import de.dhbwstuttgart.syntaxtree.visual.ASTPrinter;
@@ -17,7 +17,7 @@ import de.dhbwstuttgart.syntaxtree.visual.ASTPrinter;
 public class TestNewFeatures {
     private static HashMap<String, File[]> javFiles = new HashMap<>();
 
-    @BeforeAll
+    @BeforeClass
     public static void setUp() {
         final String testFileDirectory = "resources/syntaxtreegenerator/javFiles/";
         final String expectedASTDirectory = "resources/syntaxtreegenerator/";

src/test/java/targetast/ASTToTypedTargetAST.java

@@ -2,6 +2,7 @@ package targetast;
 
 import com.google.common.reflect.TypeToken;
 import de.dhbwstuttgart.core.JavaTXCompiler;
+import de.dhbwstuttgart.environment.ByteArrayClassLoader;
 import de.dhbwstuttgart.parser.NullToken;
 import de.dhbwstuttgart.parser.scope.JavaClassName;
 import de.dhbwstuttgart.syntaxtree.*;
@@ -9,13 +10,13 @@ import de.dhbwstuttgart.syntaxtree.type.RefType;
 import de.dhbwstuttgart.target.generate.ASTToTargetAST;
 import de.dhbwstuttgart.target.tree.TargetStructure;
 import de.dhbwstuttgart.typeinference.result.ResultSet;
-import org.junit.jupiter.api.Disabled;
+import org.junit.Ignore;
-import org.junit.jupiter.api.Test;
+import org.junit.Test;
 
 import java.nio.file.Path;
 import java.util.*;
 
-import static org.junit.jupiter.api.Assertions.*;
+import static org.junit.Assert.*;
 
 public class ASTToTypedTargetAST {
 
@@ -23,7 +24,7 @@ public class ASTToTypedTargetAST {
     public void emptyClass() {
         ClassOrInterface emptyClass = new ClassOrInterface(0, new JavaClassName("EmptyClass"), new ArrayList<>(), Optional.empty(), Optional.empty(), new ArrayList<>(), new ArrayList<>(), new GenericDeclarationList(new ArrayList<>(), new NullToken()), new RefType(new JavaClassName("Object"), new NullToken()), false, false, new ArrayList<>(), new ArrayList<>(), new NullToken(), null);
         ResultSet emptyResultSet = new ResultSet(new HashSet<>());
-        TargetStructure emptyTargetClass = new ASTToTargetAST(List.of(emptyResultSet), TestCodegen.createClassLoader()).convert(emptyClass);
+        TargetStructure emptyTargetClass = new ASTToTargetAST(List.of(emptyResultSet)).convert(emptyClass);
         assert emptyTargetClass.getName().equals("EmptyClass");
         assert emptyTargetClass.methods().size() == 0;
         assert emptyTargetClass.fields().size() == 0;
@@ -31,14 +32,13 @@ public class ASTToTypedTargetAST {
 
     @Test
     public void overloading() throws Exception {
-        var classLoader = TestCodegen.createClassLoader();
-
         var file = Path.of(System.getProperty("user.dir"), "/resources/bytecode/javFiles/Overloading.jav").toFile();
         var compiler = new JavaTXCompiler(file);
         var resultSet = compiler.typeInference(file);
-        var converter = new ASTToTargetAST(compiler, resultSet, classLoader);
+        var converter = new ASTToTargetAST(compiler, resultSet);
         var classes = compiler.sourceFiles.get(file).getClasses();
 
+        var classLoader = new ByteArrayClassLoader();
         var overloading = TestCodegen.generateClass(converter.convert(classes.get(0)), classLoader);
         var overloading2 = TestCodegen.generateClass(converter.convert(classes.get(1)), classLoader);
 
@@ -54,54 +54,46 @@ public class ASTToTypedTargetAST {
 
     @Test
     public void tphsAndGenerics() throws Exception {
-        var classLoader = TestCodegen.createClassLoader();
-
         var file = Path.of(System.getProperty("user.dir"), "/resources/bytecode/javFiles/Tph2.jav").toFile();
         var compiler = new JavaTXCompiler(file);
         var resultSet = compiler.typeInference(file);
-        var converter = new ASTToTargetAST(compiler, resultSet, classLoader);
+        var converter = new ASTToTargetAST(compiler, resultSet);
         var classes = compiler.sourceFiles.get(file).getClasses();
 
-        var tphAndGenerics = TestCodegen.generateClass(converter.convert(classes.get(0)), classLoader);
+        var tphAndGenerics = TestCodegen.generateClass(converter.convert(classes.get(0)), new ByteArrayClassLoader());
     }
 
     @Test
     public void cycles() throws Exception {
-        var classLoader = TestCodegen.createClassLoader();
-
         var file = Path.of(System.getProperty("user.dir"), "/resources/bytecode/javFiles/Cycle.jav").toFile();
         var compiler = new JavaTXCompiler(file);
         var resultSet = compiler.typeInference(file);
-        var converter = new ASTToTargetAST(compiler, resultSet, classLoader);
+        var converter = new ASTToTargetAST(compiler, resultSet);
         var classes = compiler.sourceFiles.get(file).getClasses();
 
-        var cycle = TestCodegen.generateClass(converter.convert(classes.get(0)), classLoader);
+        var cycle = TestCodegen.generateClass(converter.convert(classes.get(0)), new ByteArrayClassLoader());
     }
 
     @Test
     public void infimum() throws Exception {
-        var classLoader = TestCodegen.createClassLoader();
-
         var file = Path.of(System.getProperty("user.dir"), "/resources/bytecode/javFiles/Infimum.jav").toFile();
         var compiler = new JavaTXCompiler(file);
         var resultSet = compiler.typeInference(file);
-        var converter = new ASTToTargetAST(compiler, resultSet, classLoader);
+        var converter = new ASTToTargetAST(compiler, resultSet);
         var classes = compiler.sourceFiles.get(file).getClasses();
 
-        var infimum = TestCodegen.generateClass(converter.convert(classes.get(0)), classLoader);
+        var infimum = TestCodegen.generateClass(converter.convert(classes.get(0)), new ByteArrayClassLoader());
     }
 
     @Test
     public void gen() throws Exception {
-        var classLoader = TestCodegen.createClassLoader();
-
         var file = Path.of(System.getProperty("user.dir"), "/resources/bytecode/javFiles/Gen.jav").toFile();
         var compiler = new JavaTXCompiler(file);
         var resultSet = compiler.typeInference(file);
-        var converter = new ASTToTargetAST(compiler, resultSet, classLoader);
+        var converter = new ASTToTargetAST(compiler, resultSet);
         var classes = compiler.sourceFiles.get(file).getClasses();
 
-        var generics = TestCodegen.generateClass(converter.convert(classes.get(0)), TestCodegen.createClassLoader());
+        var generics = TestCodegen.generateClass(converter.convert(classes.get(0)), new ByteArrayClassLoader());
         var m = generics.getDeclaredMethod("m", Vector.class);
         var mReturnType = m.getGenericReturnType();
         assertEquals(mReturnType, m.getParameters()[0].getParameterizedType());
@@ -111,15 +103,13 @@ public class ASTToTypedTargetAST {
 
     @Test
     public void definedGenerics() throws Exception {
-        var classLoader = TestCodegen.createClassLoader();
-
         var file = Path.of(System.getProperty("user.dir"), "/resources/bytecode/javFiles/Generics.jav").toFile();
         var compiler = new JavaTXCompiler(file);
         var resultSet = compiler.typeInference(file);
-        var converter = new ASTToTargetAST(compiler, resultSet, classLoader);
+        var converter = new ASTToTargetAST(compiler, resultSet);
         var classes = compiler.sourceFiles.get(file).getClasses();
 
-        var generics = TestCodegen.generateClass(converter.convert(classes.get(0)), classLoader);
+        var generics = TestCodegen.generateClass(converter.convert(classes.get(0)), new ByteArrayClassLoader());
         var B = generics.getTypeParameters()[0];
         var mt1 = generics.getDeclaredMethod("mt1", Object.class);
         var constructor = generics.getDeclaredConstructor(Object.class);
@@ -131,15 +121,13 @@ public class ASTToTypedTargetAST {
 
     @Test
     public void definedGenerics2() throws Exception {
-        var classLoader = TestCodegen.createClassLoader();
-
         var file = Path.of(System.getProperty("user.dir"), "/resources/bytecode/javFiles/Generics2.jav").toFile();
         var compiler = new JavaTXCompiler(file);
         var resultSet = compiler.typeInference(file);
-        var converter = new ASTToTargetAST(compiler, resultSet, classLoader);
+        var converter = new ASTToTargetAST(compiler, resultSet);
         var classes = compiler.sourceFiles.get(file).getClasses();
 
-        var generics2 = TestCodegen.generateClass(converter.convert(classes.get(0)), classLoader);
+        var generics2 = TestCodegen.generateClass(converter.convert(classes.get(0)), new ByteArrayClassLoader());
         assertEquals(generics2.getTypeParameters()[0].getBounds()[0], String.class);
         var m = generics2.getDeclaredMethod("m1", Object.class);
         assertEquals(m.getTypeParameters()[0].getBounds()[0], Integer.class);
@@ -147,30 +135,26 @@ public class ASTToTypedTargetAST {
     }
 
     @Test
-    @Disabled("Not implemented")
+    @Ignore("Not implemented")
     public void definedGenerics3() throws Exception {
-        var classLoader = TestCodegen.createClassLoader();
-
         var file = Path.of(System.getProperty("user.dir"), "/resources/bytecode/javFiles/Generics3.jav").toFile();
         var compiler = new JavaTXCompiler(file);
         var resultSet = compiler.typeInference(file);
-        var converter = new ASTToTargetAST(compiler, resultSet, classLoader);
+        var converter = new ASTToTargetAST(compiler, resultSet);
         var classes = compiler.sourceFiles.get(file).getClasses();
 
-        var generics3 = TestCodegen.generateClass(converter.convert(classes.get(0)), classLoader);
+        var generics3 = TestCodegen.generateClass(converter.convert(classes.get(0)), new ByteArrayClassLoader());
     }
 
     @Test
     public void definedGenerics4() throws Exception {
-        var classLoader = TestCodegen.createClassLoader();
-
         var file = Path.of(System.getProperty("user.dir"), "/resources/bytecode/javFiles/Generics4.jav").toFile();
         var compiler = new JavaTXCompiler(file);
         var resultSet = compiler.typeInference(file);
-        var converter = new ASTToTargetAST(compiler, resultSet, classLoader);
+        var converter = new ASTToTargetAST(compiler, resultSet);
         var classes = compiler.sourceFiles.get(file).getClasses();
 
-        var generics4 = TestCodegen.generateClass(converter.convert(classes.get(0)), classLoader);
+        var generics4 = TestCodegen.generateClass(converter.convert(classes.get(0)), new ByteArrayClassLoader());
 
         // var instance = generics4.getDeclaredConstructor().newInstance();
         // var method = generics4.getDeclaredMethod("m2", Object.class);

src/test/java/targetast/GreaterEqualTest.java

@@ -1,21 +1,22 @@
 package targetast;
 
-import org.junit.jupiter.api.BeforeAll;
+import de.dhbwstuttgart.environment.ByteArrayClassLoader;
-import org.junit.jupiter.api.Test;
+import org.junit.BeforeClass;
+import org.junit.Test;
 
 import java.lang.reflect.InvocationTargetException;
 import java.lang.reflect.Method;
 
-import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.Assert.assertFalse;
-import static org.junit.jupiter.api.Assertions.assertTrue;
+import static org.junit.Assert.assertTrue;
 
 public class GreaterEqualTest {
     static Class<?> classToTest;
     static Object instance;
 
-    @BeforeAll
+    @BeforeClass
     public static void beforeClass() throws Exception {
-        var classFiles = TestCodegen.generateClassFiles(TestCodegen.createClassLoader(), "GreaterEqual.jav");
+        var classFiles = TestCodegen.generateClassFiles(new ByteArrayClassLoader(), "GreaterEqual.jav");
         classToTest = classFiles.get("GreaterEqual");
         instance = classToTest.getDeclaredConstructor().newInstance();
     }

src/test/java/targetast/GreaterThanTest.java

@@ -1,20 +1,21 @@
 package targetast;
 
-import org.junit.jupiter.api.BeforeAll;
+import de.dhbwstuttgart.environment.ByteArrayClassLoader;
-import org.junit.jupiter.api.Test;
+import org.junit.BeforeClass;
+import org.junit.Test;
 
 import java.lang.reflect.Method;
 
-import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.Assert.assertFalse;
-import static org.junit.jupiter.api.Assertions.assertTrue;
+import static org.junit.Assert.assertTrue;
 
 public class GreaterThanTest {
     static Class<?> classToTest;
     static Object instance;
 
-    @BeforeAll
+    @BeforeClass
     public static void beforeClass() throws Exception {
-        var classFiles = TestCodegen.generateClassFiles(TestCodegen.createClassLoader(), "GreaterThan.jav");
+        var classFiles = TestCodegen.generateClassFiles(new ByteArrayClassLoader(), "GreaterThan.jav");
         classToTest = classFiles.get("GreaterThan");
         instance = classToTest.getDeclaredConstructor().newInstance();
     }

src/test/java/targetast/InheritTest.java

@@ -1,20 +1,22 @@
 package targetast;
 
-import org.junit.jupiter.api.BeforeAll;
+import de.dhbwstuttgart.environment.ByteArrayClassLoader;
-import org.junit.jupiter.api.Test;
+import org.junit.BeforeClass;
+import org.junit.Test;
 
 import java.lang.reflect.Method;
+import java.nio.file.Path;
 import java.util.Vector;
 
-import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.Assert.assertEquals;
 
 public class InheritTest {
     private static Class<?> classToTest, classToTestAA, classToTestBB, classToTestCC, classToTestDD;
     private static Object instanceOfClass, instanceOfClassAA, instanceOfClassBB, instanceOfClassCC, instanceOfClassDD;
 
-    @BeforeAll
+    @BeforeClass
     public static void setUpBeforeClass() throws Exception {
-        var classLoader = TestCodegen.createClassLoader();
+        var classLoader = new ByteArrayClassLoader();
 
         var classes = TestCodegen.generateClassFiles(classLoader, "Inherit.jav");
         classToTest = classes.get("Inherit");
@@ -33,72 +35,72 @@ public class InheritTest {
     @Test
     public void testmainAA() throws Exception {
         Method m = classToTestAA.getDeclaredMethod("m", Integer.class);
-        assertEquals("AA", m.invoke(instanceOfClassAA, 5));
+        assertEquals(m.invoke(instanceOfClassAA, 5), "AA");
         Method main = classToTest.getDeclaredMethod("main", classToTestAA, Integer.class);
-        assertEquals("AA", main.invoke(instanceOfClass, instanceOfClassAA, 5));
+        assertEquals(main.invoke(instanceOfClass, instanceOfClassAA, 5), "AA");
     }
 
     @Test
     public void testmainBB() throws Exception {
         Method m = classToTestAA.getDeclaredMethod("m", Integer.class);
-        assertEquals("AA", m.invoke(instanceOfClassBB, 5));
+        assertEquals(m.invoke(instanceOfClassBB, 5), "AA");
         Method main = classToTest.getDeclaredMethod("main", classToTestAA, Integer.class);
-        assertEquals("AA", main.invoke(instanceOfClass, instanceOfClassBB, 5));
+        assertEquals(main.invoke(instanceOfClass, instanceOfClassBB, 5), "AA");
     }
 
     @Test
     public void testmainCC() throws Exception {
         Method m = classToTestCC.getDeclaredMethod("m", Integer.class);
-        assertEquals("CC", m.invoke(instanceOfClassCC, 5));
+        assertEquals(m.invoke(instanceOfClassCC, 5), "CC");
         Method main = classToTest.getDeclaredMethod("main", classToTestCC, Integer.class);
-        assertEquals("CC", main.invoke(instanceOfClass, instanceOfClassCC, 5));
+        assertEquals(main.invoke(instanceOfClass, instanceOfClassCC, 5), "CC");
     }
 
     @Test
     public void testmainDD() throws Exception {
         Method m = classToTestCC.getDeclaredMethod("m", Integer.class);
-        assertEquals("CC", m.invoke(instanceOfClassDD, 5));
+        assertEquals(m.invoke(instanceOfClassDD, 5), "CC");
         Method main = classToTest.getDeclaredMethod("main", classToTestCC, Integer.class);
-        assertEquals("CC", main.invoke(instanceOfClass, instanceOfClassDD, 5));
+        assertEquals(main.invoke(instanceOfClass, instanceOfClassDD, 5), "CC");
     }
 
     @Test
     public void testmainVectorAA() throws Exception {
         Method m = classToTestAA.getDeclaredMethod("m", Integer.class);
-        assertEquals("AA", m.invoke(instanceOfClassAA, 5));
+        assertEquals(m.invoke(instanceOfClassAA, 5), "AA");
         Vector v = new Vector<>();
         v.add(instanceOfClassAA);
         Method main = classToTest.getDeclaredMethod("main", Vector.class, Integer.class);
-        assertEquals("AA", main.invoke(instanceOfClass, v, 5));
+        assertEquals(main.invoke(instanceOfClass, v, 5), "AA");
     }
 
     @Test
     public void testmainVectorBB() throws Exception {
         Method m = classToTestAA.getDeclaredMethod("m", Integer.class);
-        assertEquals("AA", m.invoke(instanceOfClassBB, 5));
+        assertEquals(m.invoke(instanceOfClassBB, 5), "AA");
         Vector v = new Vector<>();
         v.add(instanceOfClassBB);
         Method main = classToTest.getDeclaredMethod("main", Vector.class, Integer.class);
-        assertEquals("AA", main.invoke(instanceOfClass, v, 5));
+        assertEquals(main.invoke(instanceOfClass, v, 5), "AA");
     }
 
     @Test
     public void testmainVectorCC() throws Exception {
         Method m = classToTestCC.getDeclaredMethod("m", Integer.class);
-        assertEquals("CC", m.invoke(instanceOfClassCC, 5));
+        assertEquals(m.invoke(instanceOfClassCC, 5), "CC");
         Vector v = new Vector<>();
         v.add(instanceOfClassCC);
         Method main = classToTest.getDeclaredMethod("main", Vector.class, Integer.class);
-        assertEquals("CC", main.invoke(instanceOfClass, v, 5));
+        assertEquals(main.invoke(instanceOfClass, v, 5), "CC");
     }
 
     @Test
     public void testmainVectorDD() throws Exception {
         Method m = classToTestCC.getDeclaredMethod("m", Integer.class);
-        assertEquals("CC", m.invoke(instanceOfClassDD, 5));
+        assertEquals(m.invoke(instanceOfClassDD, 5), "CC");
         Vector v = new Vector<>();
         v.add(instanceOfClassDD);
         Method main = classToTest.getDeclaredMethod("main", Vector.class, Integer.class);
-        assertEquals("CC", main.invoke(instanceOfClass, v, 5));
+        assertEquals(main.invoke(instanceOfClass, v, 5), "CC");
     }
 }

src/test/java/targetast/InheritTest2.java

@@ -1,22 +1,23 @@
 package targetast;
 
-import org.junit.jupiter.api.BeforeAll;
+import de.dhbwstuttgart.environment.ByteArrayClassLoader;
-import org.junit.jupiter.api.Disabled;
+import org.junit.BeforeClass;
-import org.junit.jupiter.api.Test;
+import org.junit.Ignore;
+import org.junit.Test;
 
 import java.lang.reflect.Method;
 import java.util.Vector;
 
-import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.Assert.assertEquals;
 
-@Disabled("FIXME")
+@Ignore("FIXME")
 public class InheritTest2 {
     private static Class<?> classToTest, classToTestAA, classToTestBB, classToTestCC, classToTestDD;
     private static Object instanceOfClass, instanceOfClassAA, instanceOfClassBB, instanceOfClassCC, instanceOfClassDD;
 
-    @BeforeAll
+    @BeforeClass
     public static void setUpBeforeClass() throws Exception {
-        var classLoader = TestCodegen.createClassLoader();
+        var classLoader = new ByteArrayClassLoader();
         classToTest   = TestCodegen.generateClassFiles(classLoader, "Inherit2.jav").get("Inherit2");
         classToTestAA = TestCodegen.generateClassFiles(classLoader, "AA.jav").get("AA");
         classToTestBB = TestCodegen.generateClassFiles(classLoader, "BB.jav").get("BB");

src/test/java/targetast/LessEqualTest.java

@@ -1,20 +1,21 @@
 package targetast;
 
-import org.junit.jupiter.api.BeforeAll;
+import de.dhbwstuttgart.environment.ByteArrayClassLoader;
-import org.junit.jupiter.api.Test;
+import org.junit.BeforeClass;
+import org.junit.Test;
 
 import java.lang.reflect.Method;
 
-import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.Assert.assertFalse;
-import static org.junit.jupiter.api.Assertions.assertTrue;
+import static org.junit.Assert.assertTrue;
 
 public class LessEqualTest {
     static Class<?> classToTest;
     static Object instance;
 
-    @BeforeAll
+    @BeforeClass
     public static void beforeClass() throws Exception {
-        var classFiles = TestCodegen.generateClassFiles(TestCodegen.createClassLoader(), "LessEqual.jav");
+        var classFiles = TestCodegen.generateClassFiles(new ByteArrayClassLoader(), "LessEqual.jav");
         classToTest = classFiles.get("LessEqual");
         instance = classToTest.getDeclaredConstructor().newInstance();
     }

src/test/java/targetast/LessThanTest.java

@@ -1,20 +1,21 @@
 package targetast;
 
-import org.junit.jupiter.api.BeforeAll;
+import de.dhbwstuttgart.environment.ByteArrayClassLoader;
-import org.junit.jupiter.api.Test;
+import org.junit.BeforeClass;
+import org.junit.Test;
 
 import java.lang.reflect.Method;
 
-import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.Assert.assertFalse;
-import static org.junit.jupiter.api.Assertions.assertTrue;
+import static org.junit.Assert.assertTrue;
 
 public class LessThanTest {
     static Class<?> classToTest;
     static Object instance;
 
-    @BeforeAll
+    @BeforeClass
     public static void beforeClass() throws Exception {
-        var classFiles = TestCodegen.generateClassFiles(TestCodegen.createClassLoader(), "LessThan.jav");
+        var classFiles = TestCodegen.generateClassFiles(new ByteArrayClassLoader(), "LessThan.jav");
         classToTest = classFiles.get("LessThan");
         instance = classToTest.getDeclaredConstructor().newInstance();
     }

src/test/java/targetast/OLTest.java

@@ -1,12 +1,12 @@
 package targetast;
 
-import org.junit.jupiter.api.BeforeAll;
+import de.dhbwstuttgart.environment.ByteArrayClassLoader;
-import org.junit.jupiter.api.Test;
+import org.junit.BeforeClass;
+import org.junit.Test;
 
 import java.lang.reflect.Method;
 
-import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.Assert.assertEquals;
-
 
 public class OLTest {
 	private static Class<?> classToTest;
@@ -14,9 +14,9 @@ public class OLTest {
 	private static Object instanceOfClass;
 	private static Object instanceOfClass1;
 	
-	@BeforeAll
+	@BeforeClass
 	public static void setUpBeforeClass() throws Exception {
-		var classFiles = TestCodegen.generateClassFiles(TestCodegen.createClassLoader(), "OL.jav");
+		var classFiles = TestCodegen.generateClassFiles(new ByteArrayClassLoader(), "OL.jav");
 		classToTest = classFiles.get("OL");
 		instanceOfClass = classToTest.getDeclaredConstructor().newInstance();
 		classToTest1 = classFiles.get("OLMain");

src/test/java/targetast/PostIncTest.java

@@ -1,19 +1,20 @@
 package targetast;
 
-import org.junit.jupiter.api.BeforeAll;
+import de.dhbwstuttgart.environment.ByteArrayClassLoader;
-import org.junit.jupiter.api.Test;
+import org.junit.BeforeClass;
+import org.junit.Test;
 
 import java.lang.reflect.Method;
 
-import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.Assert.assertEquals;
 
 public class PostIncTest {
 	private static Class<?> classToTest;
 	private static Object instanceOfClass;
 	
-	@BeforeAll
+	@BeforeClass
 	public static void setUpBeforeClass() throws Exception {
-		var classFiles = TestCodegen.generateClassFiles(TestCodegen.createClassLoader(), "PostIncDec.jav");
+		var classFiles = TestCodegen.generateClassFiles(new ByteArrayClassLoader(), "PostIncDec.jav");
 		classToTest = classFiles.get("PostIncDec");
 		instanceOfClass = classToTest.getDeclaredConstructor().newInstance();
 	}

src/test/java/targetast/PreIncTest.java

@@ -1,19 +1,20 @@
 package targetast;
 
-import org.junit.jupiter.api.BeforeAll;
+import de.dhbwstuttgart.environment.ByteArrayClassLoader;
-import org.junit.jupiter.api.Test;
+import org.junit.BeforeClass;
+import org.junit.Test;
 
 import java.lang.reflect.Method;
 
-import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.Assert.assertEquals;
 
 public class PreIncTest {
 	private static Class<?> classToTest;
 	private static Object instanceOfClass;
 	
-	@BeforeAll
+	@BeforeClass
 	public static void setUpBeforeClass() throws Exception {
-		var classFiles = TestCodegen.generateClassFiles(TestCodegen.createClassLoader(), "PreInc.jav");
+		var classFiles = TestCodegen.generateClassFiles(new ByteArrayClassLoader(), "PreInc.jav");
 		classToTest = classFiles.get("PreInc");
 		instanceOfClass = classToTest.getDeclaredConstructor().newInstance();
 	}

src/test/java/targetast/PutTest.java

@@ -1,21 +1,22 @@
 package targetast;
 
-import org.junit.jupiter.api.BeforeAll;
+import de.dhbwstuttgart.environment.ByteArrayClassLoader;
-import org.junit.jupiter.api.Test;
+import org.junit.BeforeClass;
+import org.junit.Test;
 
 import java.lang.reflect.Method;
 import java.util.Stack;
 import java.util.Vector;
 
-import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.Assert.assertEquals;
 
 public class PutTest {
 	private static Class<?> classToTest;
 	private static Object instanceOfClass;
 	
-	@BeforeAll
+	@BeforeClass
 	public static void setUpBeforeClass() throws Exception {
-		var classFiles = TestCodegen.generateClassFiles(TestCodegen.createClassLoader(), "Put.jav");
+		var classFiles = TestCodegen.generateClassFiles(new ByteArrayClassLoader(), "Put.jav");
 		classToTest = classFiles.get("Put");
 		instanceOfClass = classToTest.getDeclaredConstructor().newInstance();
 	}

src/test/java/targetast/TestCodegen.java

@@ -2,7 +2,7 @@ package targetast;
 
 import de.dhbwstuttgart.core.JavaTXCompiler;
 import de.dhbwstuttgart.bytecode.Codegen;
-import de.dhbwstuttgart.environment.DirectoryClassLoader;
+import de.dhbwstuttgart.environment.ByteArrayClassLoader;
 import de.dhbwstuttgart.environment.IByteArrayClassLoader;
 import de.dhbwstuttgart.parser.scope.JavaClassName;
 import de.dhbwstuttgart.target.generate.ASTToTargetAST;
@@ -14,10 +14,10 @@ import de.dhbwstuttgart.target.tree.expression.*;
 import de.dhbwstuttgart.target.tree.type.TargetFunNType;
 import de.dhbwstuttgart.target.tree.type.TargetRefType;
 import de.dhbwstuttgart.target.tree.type.TargetType;
-import org.junit.jupiter.api.Disabled;
+import org.junit.Ignore;
-import org.junit.jupiter.api.Test;
+import org.junit.Test;
 
-import static org.junit.jupiter.api.Assertions.*;
+import static org.junit.Assert.*;
 
 import org.objectweb.asm.Opcodes;
 
@@ -37,10 +37,6 @@ public class TestCodegen {
         Files.write(outputPath.resolve(name + ".class"), code);
     }
 
-    public static IByteArrayClassLoader createClassLoader() {
-        return new DirectoryClassLoader(List.of(outputPath.toFile()), ClassLoader.getSystemClassLoader());
-    }
-
     public static Path path = Path.of(System.getProperty("user.dir"), "resources/bytecode/javFiles/");
 
     public static Map<String, ? extends Class<?>> generateClassFiles(IByteArrayClassLoader classLoader, String... files) throws IOException, ClassNotFoundException {
@@ -123,7 +119,7 @@ public class TestCodegen {
     public void testEmptyClass() throws Exception {
         var clazz = new TargetClass(Opcodes.ACC_PUBLIC, new JavaClassName("Empty"));
         clazz.addMethod(Opcodes.ACC_PUBLIC | Opcodes.ACC_STATIC, "main", List.of(), null, new TargetBlock(List.of()));
-        generateClass(clazz, createClassLoader()).getDeclaredMethod("main").invoke(null);
+        generateClass(clazz, new ByteArrayClassLoader()).getDeclaredMethod("main").invoke(null);
     }
 
     @Test
@@ -136,7 +132,7 @@ public class TestCodegen {
         targetClass.addMethod(Opcodes.ACC_PUBLIC | Opcodes.ACC_STATIC, "mul", List.of(new MethodParameter(TargetType.Integer, "a"), new MethodParameter(TargetType.Integer, "b")), TargetType.Integer, new TargetBlock(List.of(new TargetReturn(new TargetBinaryOp.Mul(TargetType.Integer, new TargetLocalVar(TargetType.Integer, "a"), new TargetLocalVar(TargetType.Integer, "b"))))));
         targetClass.addMethod(Opcodes.ACC_PUBLIC | Opcodes.ACC_STATIC, "rem", List.of(new MethodParameter(TargetType.Integer, "a"), new MethodParameter(TargetType.Integer, "b")), TargetType.Integer, new TargetBlock(List.of(new TargetReturn(new TargetBinaryOp.Rem(TargetType.Integer, new TargetLocalVar(TargetType.Integer, "a"), new TargetLocalVar(TargetType.Integer, "b"))))));
 
-        var clazz = generateClass(targetClass, createClassLoader());
+        var clazz = generateClass(targetClass, new ByteArrayClassLoader());
         assertEquals(clazz.getDeclaredMethod("add", Integer.class, Integer.class).invoke(null, 10, 10), 20);
         assertEquals(clazz.getDeclaredMethod("sub", Integer.class, Integer.class).invoke(null, 20, 10), 10);
         assertEquals(clazz.getDeclaredMethod("div", Integer.class, Integer.class).invoke(null, 20, 10), 2);
@@ -152,7 +148,7 @@ public class TestCodegen {
         targetClass.addMethod(Opcodes.ACC_PUBLIC | Opcodes.ACC_STATIC, "neg", List.of(new MethodParameter(TargetType.Integer, "a")), TargetType.Integer, new TargetBlock(List.of(new TargetReturn(new TargetUnaryOp.Negate(TargetType.Integer, new TargetLocalVar(TargetType.Integer, "a"))))));
         targetClass.addMethod(Opcodes.ACC_PUBLIC | Opcodes.ACC_STATIC, "add", List.of(new MethodParameter(TargetType.Integer, "a")), TargetType.Integer, new TargetBlock(List.of(new TargetReturn(new TargetUnaryOp.Add(TargetType.Integer, new TargetLocalVar(TargetType.Integer, "a"))))));
 
-        var clazz = generateClass(targetClass, createClassLoader());
+        var clazz = generateClass(targetClass, new ByteArrayClassLoader());
         assertEquals(clazz.getDeclaredMethod("not", Integer.class).invoke(null, 10), -11);
         assertEquals(clazz.getDeclaredMethod("neg", Integer.class).invoke(null, 10), -10);
         assertEquals(clazz.getDeclaredMethod("add", Integer.class).invoke(null, 10), 10);
@@ -166,7 +162,7 @@ public class TestCodegen {
         targetClass.addMethod(Opcodes.ACC_PUBLIC | Opcodes.ACC_STATIC, "and", List.of(new MethodParameter(TargetType.Boolean, "a"), new MethodParameter(TargetType.Boolean, "b")), TargetType.Boolean, new TargetBlock(List.of(new TargetReturn(new TargetBinaryOp.And(TargetType.Boolean, new TargetLocalVar(TargetType.Boolean, "a"), new TargetLocalVar(TargetType.Boolean, "b"))))));
         targetClass.addMethod(Opcodes.ACC_PUBLIC | Opcodes.ACC_STATIC, "or", List.of(new MethodParameter(TargetType.Boolean, "a"), new MethodParameter(TargetType.Boolean, "b")), TargetType.Boolean, new TargetBlock(List.of(new TargetReturn(new TargetBinaryOp.Or(TargetType.Boolean, new TargetLocalVar(TargetType.Boolean, "a"), new TargetLocalVar(TargetType.Boolean, "b"))))));
 
-        var clazz = generateClass(targetClass, createClassLoader());
+        var clazz = generateClass(targetClass, new ByteArrayClassLoader());
         var and = clazz.getDeclaredMethod("and", Boolean.class, Boolean.class);
         var or = clazz.getDeclaredMethod("or", Boolean.class, Boolean.class);
         assertEquals(and.invoke(null, true, false), false);
@@ -180,7 +176,7 @@ public class TestCodegen {
     public void testArithmeticConvert() throws Exception {
         var targetClass = new TargetClass(Opcodes.ACC_PUBLIC, new JavaClassName("ArithmeticConvert"));
         targetClass.addMethod(Opcodes.ACC_PUBLIC | Opcodes.ACC_STATIC, "add", List.of(), TargetType.Long, new TargetBlock(List.of(new TargetReturn(new TargetBinaryOp.Add(TargetType.Long, new TargetLiteral.CharLiteral((char) 10), new TargetLiteral.LongLiteral((long) 20))))));
-        var clazz = generateClass(targetClass, createClassLoader());
+        var clazz = generateClass(targetClass, new ByteArrayClassLoader());
         assertEquals(clazz.getDeclaredMethod("add").invoke(null), (long) 30);
     }
 
@@ -189,7 +185,7 @@ public class TestCodegen {
         var targetClass = new TargetClass(Opcodes.ACC_PUBLIC, new JavaClassName("HelloWorld"));
         targetClass.addMethod(Opcodes.ACC_PUBLIC | Opcodes.ACC_STATIC, "helloWorld", List.of(), null, new TargetBlock(List.of(new TargetMethodCall(null, new TargetFieldVar(new TargetRefType("java.io.PrintStream"), new TargetRefType("java.lang.System"), true, new TargetClassName(new TargetRefType("java.lang.System")), "out"), List.of(new TargetLiteral.StringLiteral("Hello World!")), new TargetRefType("java.io.PrintStream"), "println", false, false, false))));
 
-        var clazz = generateClass(targetClass, createClassLoader());
+        var clazz = generateClass(targetClass, new ByteArrayClassLoader());
         clazz.getDeclaredMethod("helloWorld").invoke(null);
     }
 
@@ -197,7 +193,7 @@ public class TestCodegen {
     public void testIfStatement() throws Exception {
         var targetClass = new TargetClass(Opcodes.ACC_PUBLIC, new JavaClassName("IfStmt"));
         targetClass.addMethod(Opcodes.ACC_PUBLIC | Opcodes.ACC_STATIC, "ifStmt", List.of(new MethodParameter(TargetType.Integer, "val")), TargetType.Integer, new TargetBlock(List.of(new TargetIf(new TargetBinaryOp.Equal(TargetType.Integer, new TargetLocalVar(TargetType.Integer, "val"), new TargetLiteral.IntLiteral(10)), new TargetReturn(new TargetLiteral.IntLiteral(1)), new TargetIf(new TargetBinaryOp.Less(TargetType.Integer, new TargetLocalVar(TargetType.Integer, "val"), new TargetLiteral.IntLiteral(5)), new TargetReturn(new TargetLiteral.IntLiteral(2)), new TargetReturn(new TargetLiteral.IntLiteral(3)))))));
-        var clazz = generateClass(targetClass, createClassLoader());
+        var clazz = generateClass(targetClass, new ByteArrayClassLoader());
         var ifStmt = clazz.getDeclaredMethod("ifStmt", Integer.class);
         assertEquals(ifStmt.invoke(null, 10), 1);
         assertEquals(ifStmt.invoke(null, 3), 2);
@@ -208,7 +204,7 @@ public class TestCodegen {
     public void testFor() throws Exception {
         var targetClass = new TargetClass(Opcodes.ACC_PUBLIC, new JavaClassName("For"));
         targetClass.addMethod(Opcodes.ACC_PUBLIC | Opcodes.ACC_STATIC, "forLoop", List.of(), TargetType.Integer, new TargetBlock(List.of(new TargetVarDecl(TargetType.Integer, "sum", new TargetLiteral.IntLiteral(0)), new TargetFor(List.of(new TargetVarDecl(TargetType.Integer, "i", new TargetLiteral.IntLiteral(0))), new TargetBinaryOp.Less(TargetType.Integer, new TargetLocalVar(TargetType.Integer, "i"), new TargetLiteral.IntLiteral(10)), List.of(new TargetAssign(TargetType.Integer, new TargetLocalVar(TargetType.Integer, "i"), new TargetBinaryOp.Add(TargetType.Integer, new TargetLocalVar(TargetType.Integer, "i"), new TargetLiteral.IntLiteral(1)))), new TargetBlock(List.of(new TargetAssign(TargetType.Integer, new TargetLocalVar(TargetType.Integer, "sum"), new TargetBinaryOp.Add(TargetType.Integer, new TargetLocalVar(TargetType.Integer, "sum"), new TargetLocalVar(TargetType.Integer, "i")))))), new TargetReturn(new TargetLocalVar(TargetType.Integer, "sum")))));
-        var clazz = generateClass(targetClass, createClassLoader());
+        var clazz = generateClass(targetClass, new ByteArrayClassLoader());
         assertEquals(clazz.getDeclaredMethod("forLoop").invoke(null), 45);
     }
 
@@ -216,7 +212,7 @@ public class TestCodegen {
     public void testWhile() throws Exception {
         var targetClass = new TargetClass(Opcodes.ACC_PUBLIC, new JavaClassName("While"));
         targetClass.addMethod(Opcodes.ACC_PUBLIC | Opcodes.ACC_STATIC, "whileLoop", List.of(), TargetType.Integer, new TargetBlock(List.of(new TargetVarDecl(TargetType.Integer, "i", new TargetLiteral.IntLiteral(0)), new TargetWhile(new TargetBinaryOp.Less(TargetType.Integer, new TargetLocalVar(TargetType.Integer, "i"), new TargetLiteral.IntLiteral(10)), new TargetBlock(List.of(new TargetAssign(TargetType.Integer, new TargetLocalVar(TargetType.Integer, "i"), new TargetBinaryOp.Add(TargetType.Integer, new TargetLocalVar(TargetType.Integer, "i"), new TargetLiteral.IntLiteral(1)))))), new TargetReturn(new TargetLocalVar(TargetType.Integer, "i")))));
-        var clazz = generateClass(targetClass, createClassLoader());
+        var clazz = generateClass(targetClass, new ByteArrayClassLoader());
         assertEquals(clazz.getDeclaredMethod("whileLoop").invoke(null), 10);
     }
 
@@ -239,7 +235,7 @@ public class TestCodegen {
                 new TargetReturn(new TargetLocalVar(TargetType.Integer, "res"))
         )));
 
-        var clazz = generateClass(targetClass, createClassLoader());
+        var clazz = generateClass(targetClass, new ByteArrayClassLoader());
         var m = clazz.getDeclaredMethod("switchClassic", Integer.class);
         assertEquals(m.invoke(null, 10), 0);
         assertEquals(m.invoke(null, 15), 1);
@@ -268,7 +264,7 @@ public class TestCodegen {
                         List.of(new TargetLiteral.IntLiteral(2))
                 ), true), TargetType.Integer)
                 ))));
-        var clazz = generateClass(targetClass, createClassLoader());
+        var clazz = generateClass(targetClass, new ByteArrayClassLoader());
         var m = clazz.getDeclaredMethod("switchType", Object.class);
         assertEquals(m.invoke(null, "String"), 0);
         assertEquals(m.invoke(null,  10), 1);
@@ -277,9 +273,9 @@ public class TestCodegen {
     }
 
     @Test
-    @Disabled("The lambda class is not generated because we don't call ASTToTargetAST")
+    @Ignore("The lambda class is not generated because we don't call ASTToTargetAST")
     public void testLambda() throws Exception {
-        var classLoader = createClassLoader();
+        var classLoader = new ByteArrayClassLoader();
         // var fun = classLoader.loadClass(Path.of(System.getProperty("user.dir"), "src/test/java/targetast/Fun1$$.class"));
         var interfaceType = TargetFunNType.fromParams(List.of(TargetType.Integer), 1);
 

src/test/java/targetast/TestGenerics.java

@@ -12,9 +12,9 @@ import de.dhbwstuttgart.target.generate.Bound;
 import static de.dhbwstuttgart.target.generate.Bound.*;
 import de.dhbwstuttgart.target.generate.BoundsList;
 import de.dhbwstuttgart.target.generate.GenericsResult;
-import org.junit.jupiter.api.Disabled;
+import org.junit.Ignore;
-import org.junit.jupiter.api.Test;
+import org.junit.Test;
-import static org.junit.jupiter.api.Assertions.*;
+import static org.junit.Assert.*;
 
 import java.io.File;
 import java.io.IOException;
@@ -22,7 +22,7 @@ import java.nio.file.Path;
 import java.util.ArrayList;
 import java.util.List;
 
-@Disabled("TODO: Rewrite with the new algorithm")
+@Ignore("TODO: Rewrite with the new algorithm")
 public class TestGenerics {
     private static final String rootDirectory = System.getProperty("user.dir") + "/resources/insertGenerics/javFiles/";
     private static final String bytecodeDirectory = System.getProperty("user.dir") + "targetTest";

src/test/java/targetast/TphTest.java

@@ -1,21 +1,21 @@
 package targetast;
 
-import org.junit.jupiter.api.BeforeAll;
+import de.dhbwstuttgart.environment.ByteArrayClassLoader;
-import org.junit.jupiter.api.Test;
+import org.junit.BeforeClass;
+import org.junit.Test;
 
 import java.lang.reflect.Method;
 
-import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.Assert.assertEquals;
-
 
 public class TphTest {
 
 	private static Class<?> classToTest;
 	private static Object instanceOfClass;
 
-	@BeforeAll
+	@BeforeClass
 	public static void setUpBeforeClass() throws Exception {
-		var classFiles = TestCodegen.generateClassFiles(TestCodegen.createClassLoader(), "Tph.jav");
+		var classFiles = TestCodegen.generateClassFiles(new ByteArrayClassLoader(), "Tph.jav");
 		classToTest = classFiles.get("Tph");
 		instanceOfClass = classToTest.getDeclaredConstructor().newInstance();
 	}

src/test/java/targetast/WhileTest.java

@@ -1,19 +1,20 @@
 package targetast;
 
-import org.junit.jupiter.api.BeforeAll;
+import de.dhbwstuttgart.environment.ByteArrayClassLoader;
-import org.junit.jupiter.api.Test;
+import org.junit.BeforeClass;
+import org.junit.Test;
 
 import java.lang.reflect.Method;
 
-import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.Assert.assertEquals;
 
 public class WhileTest {
 	private static Class<?> classToTest;
 	private static Object instanceOfClass;
 	
-	@BeforeAll
+	@BeforeClass
 	public static void setUpBeforeClass() throws Exception {
-		var classFiles = TestCodegen.generateClassFiles(TestCodegen.createClassLoader(), "While.jav");
+		var classFiles = TestCodegen.generateClassFiles(new ByteArrayClassLoader(), "While.jav");
 		classToTest = classFiles.get("While");
 		instanceOfClass = classToTest.getDeclaredConstructor().newInstance();
 	}

src/test/java/typeinference/JavaTXCompilerTest.java

@@ -8,8 +8,8 @@ import de.dhbwstuttgart.typedeployment.TypeInsert;
 import de.dhbwstuttgart.typedeployment.TypeInsertFactory;
 import de.dhbwstuttgart.typeinference.result.ResultSet;
 
-import org.junit.jupiter.api.Test;
+import org.junit.Ignore;
-import org.junit.jupiter.api.Disabled;
+import org.junit.Test;
 
 import java.io.File;
 import java.io.IOException;
@@ -22,7 +22,7 @@ import java.util.HashSet;
 import java.util.List;
 import java.util.Set;
 
-@Disabled("To be renewed")
+@Ignore("To be renewed")
 public class JavaTXCompilerTest {
 
     public static final String rootDirectory = System.getProperty("user.dir") + "/src/test/resources/javFiles/";

testOut/test.java

@@ -0,0 +1,22 @@
+import java.util.Vector;
+import java.util.List;
+
+class Main {
+
+  public static void main(String[] args) {
+
+
+    var grid = new Vector<Vector<Boolean>>(List.of(
+      new Vector<Boolean>(List.of(false, false, false)),
+      new Vector<Boolean>(List.of(false, false, false)),
+      new Vector<Boolean>(List.of(false, true, false))
+    ));
+
+    BFS img = new BFS();
+    Pos pos = img.search(grid);
+
+    System.out.println("Found at: x=" + pos.x + " | y=" + pos.y);
+  }
+
+
+}