removed ThreadCounter from TypeUnifyTask

pom.xml

@@ -54,8 +54,8 @@ http://maven.apache.org/maven-v4_0_0.xsd">
 				<version>3.8.0</version>
 				<configuration>
 					<compilerArgs>--enable-preview</compilerArgs>
-                    <source>19</source>
+                    <source>21</source>
-                    <target>19</target>
+                    <target>21</target>
                 </configuration>
 			</plugin>
 			<plugin>

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

@@ -88,7 +88,8 @@ public class JavaTXCompiler {
 		this(sourceFiles, null);
 	}
     public JavaTXCompiler(List<File> sources, List<File> contextPath) throws IOException, ClassNotFoundException {
-    	statistics = new FileWriter(new File(System.getProperty("user.dir") + "/" + sources.get(0).getName() + "_"+ new Timestamp(System.currentTimeMillis())));
+    	//statistics = new FileWriter(new File(System.getProperty("user.dir") + "/" + sources.get(0).getName() + "_"+ new Timestamp(System.currentTimeMillis())));
+    	statistics = new OutputStreamWriter(new NullOutputStream());
 		statistics.write("test");
         if(contextPath == null || contextPath.isEmpty()){
         	//When no contextPaths are given, the working directory is the sources root

src/main/java/de/dhbwstuttgart/typeinference/unify/TypeUnifyTask.java

@@ -13,6 +13,7 @@ import java.util.List;
 import java.util.Map.Entry;
 import java.util.Optional;
 import java.util.Set;
+import java.util.concurrent.ForkJoinPool;
 import java.util.concurrent.RecursiveTask;
 import java.util.function.BiFunction;
 import java.util.function.BinaryOperator;
@@ -56,6 +57,7 @@ import java.io.OutputStreamWriter;
 import java.io.Writer;
 
 import com.google.common.collect.Ordering;
+import org.apache.commons.io.output.NullWriter;
 
 
 /**
@@ -78,11 +80,9 @@ public class TypeUnifyTask extends RecursiveTask<Set<Set<UnifyPair>>>  {
 	 * Fuer die Threads
 	 */
 	UnifyResultModel urm;
-	protected static int noOfThread = 0;
 	private static int totalnoOfThread = 0;
 	int thNo;
 	protected boolean one = false;
-	Integer MaxNoOfThreads = 128;
 
 	public static final String rootDirectory = System.getProperty("user.dir")+"/test/logFiles/";
 	Writer logFile;
@@ -162,6 +162,9 @@ public class TypeUnifyTask extends RecursiveTask<Set<Set<UnifyPair>>>  {
 	}
 	public TypeUnifyTask(Set<UnifyPair> eq, List<Set<Constraint<UnifyPair>>> oderConstraints, IFiniteClosure fc, boolean parallel, Writer logFile, Boolean log, int rekTiefe, UnifyResultModel urm, UnifyTaskModel usedTasks) {
 		synchronized (this) {
+            if(statistics==null){
+                statistics = new NullWriter();
+            }
 			this.eq = eq;
 			//this.oderConstraints = oderConstraints.stream().map(x -> x.stream().map(y -> new HashSet<>(y)).collect(Collectors.toSet(HashSet::new))).collect(Collectors.toList(ArrayList::new));
 			this.oderConstraintsField = oderConstraints; /*.stream().map(x -> {
@@ -181,7 +184,6 @@ public class TypeUnifyTask extends RecursiveTask<Set<Set<UnifyPair>>>  {
 			this.logFile = logFile;
 			this.log = log;
 
-			noOfThread++; 
 			totalnoOfThread++;
 			//writeLog("thNo1 " + thNo);
 			thNo = totalnoOfThread;
@@ -270,7 +272,6 @@ public class TypeUnifyTask extends RecursiveTask<Set<Set<UnifyPair>>>  {
 				.filter(x -> x.size()>1)
 				.collect(Collectors.toCollection(ArrayList::new));
 		Set<Set<UnifyPair>> res = unify(neweq, remainingOderconstraints, fc, parallel, rekTiefeField, new HashSet<>());
-		noOfThread--;
 		try {
 			logFile.close();
 		}
@@ -925,7 +926,7 @@ public class TypeUnifyTask extends RecursiveTask<Set<Set<UnifyPair>>>  {
 			/* Wenn parallel gearbeitet wird, wird je nach Varianz ein neuer Thread
 			 * gestartet, der parallel weiterarbeitet.
 			 */
-			if(parallel && (variance == 1) && noOfThread <= MaxNoOfThreads) {
+			if(parallel && (variance == 1)) {
 				Set<TypeUnify2Task> forks = new HashSet<>();
 				Set<UnifyPair> newEqOrig = new HashSet<>(eq);
 				Set<Set<UnifyPair>> newElemsOrig = new HashSet<>(elems);
@@ -985,7 +986,6 @@ public class TypeUnifyTask extends RecursiveTask<Set<Set<UnifyPair>>>  {
 				/* FORK ANFANG */
 				synchronized (this) {
 					writeLog("wait "+ forkOrig.thNo);
-					noOfThread--;
 					res = forkOrig.join();
 					synchronized (usedTasks) {
 						if (this.myIsCancelled()) {
@@ -1005,7 +1005,6 @@ public class TypeUnifyTask extends RecursiveTask<Set<Set<UnifyPair>>>  {
 				forks.forEach(x -> writeLog("wait: " + x.thNo));
 				for(TypeUnify2Task fork : forks) {
 					synchronized (this) {
-						noOfThread--;
 						Set<Set<UnifyPair>> fork_res = fork.join();
 						synchronized (usedTasks) {
 							if (this.myIsCancelled()) {
@@ -1027,7 +1026,7 @@ public class TypeUnifyTask extends RecursiveTask<Set<Set<UnifyPair>>>  {
 				}
 				//noOfThread++;
 			} else {
-			if(parallel && (variance == -1) && noOfThread <= MaxNoOfThreads) {
+			if(parallel && (variance == -1)) {
 				Set<TypeUnify2Task> forks = new HashSet<>();
 				Set<UnifyPair> newEqOrig = new HashSet<>(eq);
 				Set<Set<UnifyPair>> newElemsOrig = new HashSet<>(elems);
@@ -1086,7 +1085,6 @@ public class TypeUnifyTask extends RecursiveTask<Set<Set<UnifyPair>>>  {
 				/* FORK ANFANG */
 				synchronized (this) {
 					writeLog("wait "+ forkOrig.thNo);
-					noOfThread--;
 					res = forkOrig.join();
 					synchronized (usedTasks) {
 						if (this.myIsCancelled()) {
@@ -1106,7 +1104,6 @@ public class TypeUnifyTask extends RecursiveTask<Set<Set<UnifyPair>>>  {
 				forks.forEach(x -> writeLog("wait: " + x.thNo));
 				for(TypeUnify2Task fork : forks) {
 					synchronized (this) {
-						noOfThread--;
 						Set<Set<UnifyPair>> fork_res = fork.join();
 						synchronized (usedTasks) {
 							if (this.myIsCancelled()) {
@@ -1128,7 +1125,7 @@ public class TypeUnifyTask extends RecursiveTask<Set<Set<UnifyPair>>>  {
 				}
 				//noOfThread++;
 		    } else {
-		    if(parallel && (variance == 2) && noOfThread <= MaxNoOfThreads) {
+		    if(parallel && (variance == 2)) {
 		    	writeLog("var2einstieg");
 		    	Set<TypeUnify2Task> forks = new HashSet<>();
 		    	Set<UnifyPair> newEqOrig = new HashSet<>(eq);
@@ -1172,7 +1169,6 @@ public class TypeUnifyTask extends RecursiveTask<Set<Set<UnifyPair>>>  {
 		    	/* FORK ANFANG */
 		    	synchronized (this) {
 		    		writeLog("wait "+ forkOrig.thNo);
-		    		noOfThread--;
 					res = forkOrig.join();
 					synchronized (usedTasks) {
 						if (this.myIsCancelled()) {
@@ -1191,7 +1187,6 @@ public class TypeUnifyTask extends RecursiveTask<Set<Set<UnifyPair>>>  {
 		    	forks.forEach(x -> writeLog("wait: " + x.thNo));
 		    	for(TypeUnify2Task fork : forks) {
 		    		synchronized (this) {
-		    			noOfThread--;
 						Set<Set<UnifyPair>> fork_res = fork.join();
 						synchronized (usedTasks) {
 							if (this.myIsCancelled()) {
@@ -2613,7 +2608,6 @@ public class TypeUnifyTask extends RecursiveTask<Set<Set<UnifyPair>>>  {
 		if (log && finalresult) {
 			try {
 				logFile.write("Thread no.:" + thNo + "\n");
-				logFile.write("noOfThread:" + noOfThread + "\n");
 				logFile.write("parallel:" + parallel + "\n");
 				logFile.write(str+"\n\n");
 				logFile.flush();

src/test/java/typeinference/UnifyTest.java

@@ -7,7 +7,16 @@ import de.dhbwstuttgart.syntaxtree.visual.ASTPrinter;
 import de.dhbwstuttgart.syntaxtree.visual.ASTTypePrinter;
 import de.dhbwstuttgart.typedeployment.TypeInsert;
 import de.dhbwstuttgart.typedeployment.TypeInsertFactory;
+import de.dhbwstuttgart.typeinference.constraints.Constraint;
+import de.dhbwstuttgart.typeinference.constraints.ConstraintSet;
+import de.dhbwstuttgart.typeinference.constraints.Pair;
 import de.dhbwstuttgart.typeinference.result.ResultSet;
+import de.dhbwstuttgart.typeinference.unify.TypeUnify;
+import de.dhbwstuttgart.typeinference.unify.UnifyResultModel;
+import de.dhbwstuttgart.typeinference.unify.UnifyTaskModel;
+import de.dhbwstuttgart.typeinference.unify.interfaces.IFiniteClosure;
+import de.dhbwstuttgart.typeinference.unify.model.*;
+import org.apache.commons.io.output.NullWriter;
 import org.junit.Test;
 
 import java.io.File;
@@ -24,7 +33,71 @@ import java.util.Set;
 public class UnifyTest {
 
     public static final String rootDirectory = System.getProperty("user.dir")+"/resources/javFiles/";
-/*
+
+    private UnifyPair genPairListOfInteger(String name){
+
+        UnifyType type1 = new PlaceholderType(name);
+        UnifyType type2 = new ReferenceType("List", new TypeParams(new ReferenceType("Integer")));
+        UnifyPair pair1 = new UnifyPair(type2, type1, PairOperator.SMALLERDOT);
+
+        return pair1;
+    }
+    private UnifyPair genPairListOfString(String name){
+
+        PlaceholderType type1 = new PlaceholderType(name);
+        UnifyType type2 = new ReferenceType("List", new TypeParams(new ReferenceType("String")));
+        UnifyPair pair1 = new UnifyPair(type2, type1, PairOperator.SMALLERDOT);
+
+        return pair1;
+    }
+    @Test
+    public void unifyTest(){
+        UnifyType type1;
+        UnifyType type2;
+
+        Set<UnifyPair> undConstraints = new HashSet<>();
+        undConstraints.add(genPairListOfInteger("a"));
+        undConstraints.add(genPairListOfString("a"));
+
+        undConstraints.add(genPairListOfInteger("b"));
+        undConstraints.add(genPairListOfString("b"));
+        undConstraints.add(genPairListOfInteger("c"));
+        undConstraints.add(genPairListOfString("c"));
+        undConstraints.add(genPairListOfInteger("d"));
+        undConstraints.add(genPairListOfString("d"));
+        undConstraints.add(genPairListOfInteger("e"));
+        undConstraints.add(genPairListOfString("e"));
+        undConstraints.add(genPairListOfInteger("e1"));
+        undConstraints.add(genPairListOfString("e1"));
+        undConstraints.add(genPairListOfInteger("e2"));
+        undConstraints.add(genPairListOfString("e2"));
+        undConstraints.add(genPairListOfInteger("e3"));
+        undConstraints.add(genPairListOfString("e3"));
+
+        List<Set<Constraint<UnifyPair>>> oderConstraints = new ArrayList<>();
+
+        Set<UnifyPair> constraints = new HashSet<>();
+        type1 = new ReferenceType("Object");
+        type2 = new ReferenceType("List", new TypeParams(new PlaceholderType("X")));
+        constraints.add(new UnifyPair(type2, type1, PairOperator.SMALLER));
+        type1 = new ReferenceType("Object");
+        type2 = new ReferenceType("Integer");
+        constraints.add(new UnifyPair(type2, type1, PairOperator.SMALLER));
+        type1 = new ReferenceType("Object");
+        type2 = new ReferenceType("String");
+        constraints.add(new UnifyPair(type2, type1, PairOperator.SMALLER));
+
+        IFiniteClosure finiteClosure = new FiniteClosure(constraints, new NullWriter());
+
+        TypeUnify unifyAlgo = new TypeUnify();
+        ConstraintSet<Pair> cons = new ConstraintSet<>();
+        UnifyResultModel urm = new UnifyResultModel(cons, finiteClosure);
+        UnifyTaskModel tasks = new UnifyTaskModel();
+        Set<Set<UnifyPair>> solution = unifyAlgo.unify(undConstraints, oderConstraints, finiteClosure, new NullWriter(), false, urm, tasks);
+        System.out.println(solution.size());
+        System.out.println(solution);
+    }
+    /*
     @Test
     public void finiteClosure() throws IOException, ClassNotFoundException {
         execute(new File(rootDirectory+"fc.jav"));