diff --git a/src/main/java/de/dhbwstuttgart/bytecode/ArgumentVisitor.java b/src/main/java/de/dhbwstuttgart/bytecode/ArgumentVisitor.java
index 87c730ad..268e53b5 100644
--- a/src/main/java/de/dhbwstuttgart/bytecode/ArgumentVisitor.java
+++ b/src/main/java/de/dhbwstuttgart/bytecode/ArgumentVisitor.java
@@ -61,7 +61,7 @@ public class ArgumentVisitor implements StatementVisitor {
 		assign.accept(bytecodeGenMethod);
 		
 		if(argListMethCall.get(0))
-			bytecodeGenMethod.doUnboxing(bytecodeGenMethod.getResolvedType(assign.getType()));
+			bytecodeGenMethod.doUnboxing(bytecodeGenMethod.getResolver().getResolvedType(assign.getType()));
 		argListMethCall.remove(0);
 	}
 
@@ -70,9 +70,9 @@ public class ArgumentVisitor implements StatementVisitor {
 		binary.accept(bytecodeGenMethod);
 		
 		if(argListMethCall.get(0)) {
-			bytecodeGenMethod.doUnboxing(bytecodeGenMethod.getResolvedType(binary.getType()));
+			bytecodeGenMethod.doUnboxing(bytecodeGenMethod.getResolver().getResolvedType(binary.getType()));
 		} else {
-			bytecodeGenMethod.doBoxing(bytecodeGenMethod.getResolvedType(binary.getType()));
+			bytecodeGenMethod.doBoxing(bytecodeGenMethod.getResolver().getResolvedType(binary.getType()));
 		}
 		argListMethCall.remove(0);
 	}
@@ -88,7 +88,7 @@ public class ArgumentVisitor implements StatementVisitor {
 		castExpr.accept(bytecodeGenMethod);
 		
 		if(argListMethCall.get(0))
-			bytecodeGenMethod.doUnboxing(bytecodeGenMethod.getResolvedType(castExpr.getType()));
+			bytecodeGenMethod.doUnboxing(bytecodeGenMethod.getResolver().getResolvedType(castExpr.getType()));
 		argListMethCall.remove(0);
 	}
 
@@ -103,7 +103,7 @@ public class ArgumentVisitor implements StatementVisitor {
 		fieldVar.accept(bytecodeGenMethod);
 		
 		if(argListMethCall.get(0))
-			bytecodeGenMethod.doUnboxing(bytecodeGenMethod.getResolvedType(fieldVar.getType()));
+			bytecodeGenMethod.doUnboxing(bytecodeGenMethod.getResolver().getResolvedType(fieldVar.getType()));
 		argListMethCall.remove(0);
 	}
 
@@ -124,7 +124,7 @@ public class ArgumentVisitor implements StatementVisitor {
 		instanceOf.accept(bytecodeGenMethod);
 		
 		if(argListMethCall.get(0))
-			bytecodeGenMethod.doUnboxing(bytecodeGenMethod.getResolvedType(instanceOf.getType()));
+			bytecodeGenMethod.doUnboxing(bytecodeGenMethod.getResolver().getResolvedType(instanceOf.getType()));
 		argListMethCall.remove(0);
 	}
 
@@ -133,7 +133,7 @@ public class ArgumentVisitor implements StatementVisitor {
 		localVar.accept(bytecodeGenMethod);
 		if(!bytecodeGenMethod.isBinaryExp) {
 			if(argListMethCall.get(0))
-				bytecodeGenMethod.doUnboxing(bytecodeGenMethod.getResolvedType(localVar.getType()));
+				bytecodeGenMethod.doUnboxing(bytecodeGenMethod.getResolver().getResolvedType(localVar.getType()));
 		}
 		argListMethCall.remove(0);
 	}
@@ -149,7 +149,7 @@ public class ArgumentVisitor implements StatementVisitor {
 		methodCall.accept(bytecodeGenMethod);
 		
 		if(argListMethCall.get(0))
-			bytecodeGenMethod.doUnboxing(bytecodeGenMethod.getResolvedType(methodCall.getType()));
+			bytecodeGenMethod.doUnboxing(bytecodeGenMethod.getResolver().getResolvedType(methodCall.getType()));
 		argListMethCall.remove(0);
 	}
 
@@ -158,7 +158,7 @@ public class ArgumentVisitor implements StatementVisitor {
 		methodCall.accept(bytecodeGenMethod);
 		
 		if(argListMethCall.get(0))
-			bytecodeGenMethod.doUnboxing(bytecodeGenMethod.getResolvedType(methodCall.getType()));
+			bytecodeGenMethod.doUnboxing(bytecodeGenMethod.getResolver().getResolvedType(methodCall.getType()));
 		argListMethCall.remove(0);
 	}
 
@@ -197,7 +197,7 @@ public class ArgumentVisitor implements StatementVisitor {
 		aThis.accept(bytecodeGenMethod);
 		
 		if(argListMethCall.get(0))
-			bytecodeGenMethod.doUnboxing(bytecodeGenMethod.getResolvedType(aThis.getType()));
+			bytecodeGenMethod.doUnboxing(bytecodeGenMethod.getResolver().getResolvedType(aThis.getType()));
 		argListMethCall.remove(0);
 	}
 
@@ -242,7 +242,7 @@ public class ArgumentVisitor implements StatementVisitor {
 		unaryExpr.accept(bytecodeGenMethod);
 		
 		if(argListMethCall.get(0))
-			bytecodeGenMethod.doUnboxing(bytecodeGenMethod.getResolvedType(unaryExpr.getType()));
+			bytecodeGenMethod.doUnboxing(bytecodeGenMethod.getResolver().getResolvedType(unaryExpr.getType()));
 		argListMethCall.remove(0);
 	}
 
@@ -251,7 +251,7 @@ public class ArgumentVisitor implements StatementVisitor {
 		literal.accept(bytecodeGenMethod);
 		
 		if(argListMethCall.get(0))
-			bytecodeGenMethod.doUnboxing(bytecodeGenMethod.getResolvedType(literal.getType()));
+			bytecodeGenMethod.doUnboxing(bytecodeGenMethod.getResolver().getResolvedType(literal.getType()));
 		argListMethCall.remove(0);
 	}
 
diff --git a/src/main/java/de/dhbwstuttgart/bytecode/BytecodeGen.java b/src/main/java/de/dhbwstuttgart/bytecode/BytecodeGen.java
index f89f7bbc..767bfcc5 100644
--- a/src/main/java/de/dhbwstuttgart/bytecode/BytecodeGen.java
+++ b/src/main/java/de/dhbwstuttgart/bytecode/BytecodeGen.java
@@ -353,7 +353,7 @@ public class BytecodeGen implements ASTVisitor {
 		}
 		String sig = null;
 		if (hasGen) {
-			HashMap<TPHConstraint, HashSet<String>> constraints = Simplify.simplifyConstraints(field.name, tphExtractor,
+			HashMap<TPHConstraint, HashSet<String>> constraints = Simplify.simplifyConstraints(field, tphExtractor,
 					tphsClass);
 			Signature signature = new Signature(field, genericsAndBounds, methodParamsAndTypes, resultSet, constraints);
 			sig = signature.toString();
@@ -446,7 +446,7 @@ public class BytecodeGen implements ASTVisitor {
 			System.out.println("ALL CONST: " + tphExtractor.allCons.size());
 			tphExtractor.allCons.forEach(c -> System.out.println(c.toString()));
 			System.out.println("----------------");
-			HashMap<TPHConstraint, HashSet<String>> constraints = Simplify.simplifyConstraints(method.name,
+			HashMap<TPHConstraint, HashSet<String>> constraints = Simplify.simplifyConstraints(method,
 					tphExtractor, tphsClass);
 //			ArrayList<GenericInsertPair> pairs = simplifyPairs(method.name,tphExtractor.allPairs,tphExtractor.allCons);
 			Signature signature = new Signature(method, genericsAndBoundsMethod, genericsAndBounds,
diff --git a/src/main/java/de/dhbwstuttgart/bytecode/BytecodeGenMethod.java b/src/main/java/de/dhbwstuttgart/bytecode/BytecodeGenMethod.java
index a91e201a..b2699cd4 100644
--- a/src/main/java/de/dhbwstuttgart/bytecode/BytecodeGenMethod.java
+++ b/src/main/java/de/dhbwstuttgart/bytecode/BytecodeGenMethod.java
@@ -42,6 +42,7 @@ import de.dhbwstuttgart.bytecode.utilities.KindOfLambda;
 import de.dhbwstuttgart.bytecode.utilities.Lambda;
 import de.dhbwstuttgart.bytecode.utilities.MethodCallHelper;
 import de.dhbwstuttgart.bytecode.utilities.MethodFromMethodCall;
+import de.dhbwstuttgart.bytecode.utilities.Resolver;
 import de.dhbwstuttgart.bytecode.utilities.SamMethod;
 import de.dhbwstuttgart.parser.SyntaxTreeGenerator.AssignToLocal;
 import de.dhbwstuttgart.syntaxtree.AbstractASTWalker;
@@ -58,6 +59,7 @@ import javassist.NotFoundException;
 
 public class BytecodeGenMethod implements StatementVisitor {
 
+	private Resolver resolver;
 	private Method m;
 	private MethodVisitor mv;
 	private HashMap<String, Integer> paramsAndLocals = new HashMap<>();
@@ -101,6 +103,7 @@ public class BytecodeGenMethod implements StatementVisitor {
 		this.className = className;
 		this.superClass = superClass;
 		this.resultSet = resultSet;
+		this.resolver = new Resolver(resultSet);
 		this.m = m;
 		this.mv = mv;
 		this.paramsAndLocals = paramsAndLocals;
@@ -126,6 +129,7 @@ public class BytecodeGenMethod implements StatementVisitor {
 		this.className = className;
 		this.superClass = superClass;
 		this.resultSet = resultSet;
+		this.resolver = new Resolver(resultSet);
 		this.m = m;
 		this.mv = mv;
 		this.paramsAndLocals = paramsAndLocals;
@@ -147,6 +151,7 @@ public class BytecodeGenMethod implements StatementVisitor {
 			HashMap<String, String> genericsAndBounds) {
 
 		this.resultSet = resultSet;
+		this.resolver = new Resolver(resultSet);
 		this.mv = mv;
 		this.isInterface = isInterface;
 		this.classFiles = classFiles;
@@ -172,20 +177,21 @@ public class BytecodeGenMethod implements StatementVisitor {
 		lambdaExpression.methodBody.accept(this);
 	}
 	
+	public Resolver getResolver() {
+		return resolver;
+	}
+	
 	public void isBinary(boolean isBinary) {
 		this.isBinaryExp =isBinary;
 	}
 	
-	public String getResolvedType(RefTypeOrTPHOrWildcardOrGeneric type) {
-		return resultSet.resolveType(type).resolvedType.acceptTV(new TypeToDescriptor());
-	}
 
 	@Override
 	public void visit(Block block) {
 		for (Statement stmt : block.getStatements()) {
 			stmt.accept(this);
 			if(stmt instanceof MethodCall) {
-				String ret = getResolvedType(((MethodCall) stmt).getType());
+				String ret = resolver.getResolvedType(((MethodCall) stmt).getType());
 				if(!ret.equals("void"))
 					mv.visitInsn(Opcodes.POP);
 			}
@@ -220,7 +226,7 @@ public class BytecodeGenMethod implements StatementVisitor {
 		mv.visitVarInsn(Opcodes.ALOAD, paramsAndLocals.get(localVar.name));
 		
 		if (isBinaryExp) {
-			doUnboxing(getResolvedType(localVar.getType()));
+			doUnboxing(resolver.getResolvedType(localVar.getType()));
 		}
 	}
 
@@ -254,13 +260,13 @@ public class BytecodeGenMethod implements StatementVisitor {
 		
 		if (isBinaryExp) {
 			BinaryExpr binary = (BinaryExpr) assign.rightSide;
-			String binaryType = getResolvedType(binary.getType());
+			String binaryType = resolver.getResolvedType(binary.getType());
 			doBoxing(binaryType);
 			isBinaryExp = false;
 		}
 
-		System.out.println("ASSIGN TYPE R: " + getResolvedType(assign.rightSide.getType()));
-		String typeOfRightSide = getResolvedType(assign.rightSide.getType());
+		System.out.println("ASSIGN TYPE R: " + resolver.getResolvedType(assign.rightSide.getType()));
+		String typeOfRightSide = resolver.getResolvedType(assign.rightSide.getType());
 		if(typeOfRightSide.contains("<")) {
 			mv.visitTypeInsn(Opcodes.CHECKCAST, typeOfRightSide.substring(0, typeOfRightSide.indexOf('<')));
 		}
@@ -272,11 +278,11 @@ public class BytecodeGenMethod implements StatementVisitor {
 	@Override
 	public void visit(BinaryExpr binary) {
 		isParentBinary = true;
-		String lexpType = getResolvedType(binary.lexpr.getType());
-		String rexpType = getResolvedType(binary.rexpr.getType());
+		String lexpType = resolver.getResolvedType(binary.lexpr.getType());
+		String rexpType = resolver.getResolvedType(binary.rexpr.getType());
 
 		String largerType = getLargerType(lexpType, rexpType);
-		String typeOfBinary = getResolvedType(binary.getType());
+		String typeOfBinary = resolver.getResolvedType(binary.getType());
 		
 		if (typeOfBinary.equals(Type.getInternalName(String.class))) {
 			mv.visitTypeInsn(Opcodes.NEW, Type.getInternalName(StringBuilder.class));
@@ -649,7 +655,7 @@ public class BytecodeGenMethod implements StatementVisitor {
 		}
 		
 		for(int i=pos;i<kindOfLambda.getArgumentList().size();i++) {
-			String t = "L" + getResolvedType(kindOfLambda.getArgumentList().get(i)) + ";";
+			String t = "L" + resolver.getResolvedType(kindOfLambda.getArgumentList().get(i)) + ";";
 			newDesc += t;
 		}
 		newDesc += lamDesc.substring(1);
@@ -746,11 +752,11 @@ public class BytecodeGenMethod implements StatementVisitor {
 		fieldVar.receiver.accept(this);
 		// test (if)
 		if (!fieldVar.receiver.getClass().equals(StaticClassName.class)) {
-			mv.visitFieldInsn(Opcodes.GETFIELD, getResolvedType(fieldVar.receiver.getType()), fieldName, fieldDesc);
+			mv.visitFieldInsn(Opcodes.GETFIELD, resolver.getResolvedType(fieldVar.receiver.getType()), fieldName, fieldDesc);
 		}
 		
 		if (isBinaryExp) {
-			doUnboxing(getResolvedType(fieldVar.getType()));
+			doUnboxing(resolver.getResolvedType(fieldVar.getType()));
 		}
 		// mv.visitFieldInsn(Opcodes.GETSTATIC,
 		// fieldVar.receiver.getType().toString().replace(".", "/"),
@@ -769,7 +775,7 @@ public class BytecodeGenMethod implements StatementVisitor {
 		isBinaryExp = statement.isExprBinary();
 		ifStmt.expr.accept(this);
 		if(!(ifStmt.expr instanceof BinaryExpr)) {
-			doUnboxing(getResolvedType(ifStmt.expr.getType()));
+			doUnboxing(resolver.getResolvedType(ifStmt.expr.getType()));
 			Label branchLabel = new Label();
 			Label endLabel = new Label();
 			mv.visitJumpInsn(Opcodes.IFEQ, branchLabel);
@@ -787,7 +793,7 @@ public class BytecodeGenMethod implements StatementVisitor {
 	public void visit(MethodCall methodCall) {
 		boolean parentBinary = isParentBinary;
 		System.out.println("In MethodCall = " + methodCall.name);
-		String receiverName = getResolvedType(methodCall.receiver.getType());
+		String receiverName = resolver.getResolvedType(methodCall.receiver.getType());
 		System.out.println("Methods of " + receiverName + " ");
 		java.lang.reflect.Method methodRefl = null;
 		String clazz = receiverName.replace("/", ".");
@@ -927,7 +933,7 @@ public class BytecodeGenMethod implements StatementVisitor {
 				helper.createCheckCast(methodCall,mv);
 			}
 			if(isBinaryExp) {
-				doUnboxing(getResolvedType(methodCall.getType()));
+				doUnboxing(resolver.getResolvedType(methodCall.getType()));
 				
 			}
 		} else if(receiverName.contains("$$") && !methCallType.equals(Type.getInternalName(Object.class))) {
@@ -936,7 +942,7 @@ public class BytecodeGenMethod implements StatementVisitor {
 		System.out.println("ISParent Binary = "+isParentBinary +" -> " + parentBinary);
 		if(methodRefl == null && (parentBinary || !isReturnStmt)) {
 			if(isBinaryExp)
-				doUnboxing(getResolvedType(methodCall.getType()));
+				doUnboxing(resolver.getResolvedType(methodCall.getType()));
 		}
 		
 	}
@@ -958,7 +964,7 @@ public class BytecodeGenMethod implements StatementVisitor {
 	private String[] getTypes(List<Expression> arguments) {
 		String[] types = new String[arguments.size()];
 		for(int i = 0; i<arguments.size(); ++i) {
-			String t = getResolvedType(arguments.get(i).getType());
+			String t = resolver.getResolvedType(arguments.get(i).getType());
 			types[i] = t;
 		}
 		return types;
@@ -1063,7 +1069,7 @@ public class BytecodeGenMethod implements StatementVisitor {
 		methodCall.arglist.accept(this);
 		String d = "(";
 		for (Expression e : methodCall.arglist.getArguments()) {
-			d = d + "L" + getResolvedType(e.getType()) + ";";
+			d = d + "L" + resolver.getResolvedType(e.getType()) + ";";
 		}
 		d += ")V";
 
@@ -1086,7 +1092,7 @@ public class BytecodeGenMethod implements StatementVisitor {
 		unaryExpr.expr.accept(this);
 		Operation op = unaryExpr.operation;
 
-		String typeOfUnary = getResolvedType(unaryExpr.getType());
+		String typeOfUnary = resolver.getResolvedType(unaryExpr.getType());
 
 		boolean isIncOrDec = false;
 
@@ -1180,7 +1186,7 @@ public class BytecodeGenMethod implements StatementVisitor {
 
 		if (isBinary) {
 			BinaryExpr binary = (BinaryExpr) aReturn.retexpr;
-			doBoxing(getResolvedType(binary.getType()));
+			doBoxing(resolver.getResolvedType(binary.getType()));
 //			isBinaryExp = false;
 		}
 		
@@ -1236,7 +1242,7 @@ public class BytecodeGenMethod implements StatementVisitor {
 	@Override
 	public void visit(Literal literal) {
 		Object value = literal.value;
-		String typeOfLiteral = getResolvedType(literal.getType());
+		String typeOfLiteral = resolver.getResolvedType(literal.getType());
 		System.out.println("typeOfLiteral :=> "+ typeOfLiteral);
 		// Der Wert des Literals wird auf den Stack geladen und
 		// geboxt, wenn es nötig ist.
@@ -1467,7 +1473,7 @@ public class BytecodeGenMethod implements StatementVisitor {
 			//TODO: teste, ob man das für unary braucht
 			if (isBinaryExp) {
 				BinaryExpr binary = (BinaryExpr) al;
-				String binaryType = getResolvedType(binary.getType());
+				String binaryType = resolver.getResolvedType(binary.getType());
 				doBoxing(binaryType);
 			}
 			statement = null;
@@ -1493,8 +1499,8 @@ public class BytecodeGenMethod implements StatementVisitor {
 		fDesc +=";";
 
 		
-		System.out.println("Receiver = " + getResolvedType(assignLeftSide.field.receiver.getType()));
-		mv.visitFieldInsn(Opcodes.PUTFIELD, getResolvedType(assignLeftSide.field.receiver.getType()),
+		System.out.println("Receiver = " + resolver.getResolvedType(assignLeftSide.field.receiver.getType()));
+		mv.visitFieldInsn(Opcodes.PUTFIELD, resolver.getResolvedType(assignLeftSide.field.receiver.getType()),
 				assignLeftSide.field.fieldVarName, fDesc);
 	}
 
diff --git a/src/main/java/de/dhbwstuttgart/bytecode/TPHExtractor.java b/src/main/java/de/dhbwstuttgart/bytecode/TPHExtractor.java
index 66723205..2ef7d957 100644
--- a/src/main/java/de/dhbwstuttgart/bytecode/TPHExtractor.java
+++ b/src/main/java/de/dhbwstuttgart/bytecode/TPHExtractor.java
@@ -15,6 +15,8 @@ import de.dhbwstuttgart.bytecode.constraint.ExtendsConstraint;
 import de.dhbwstuttgart.bytecode.constraint.TPHConstraint;
 import de.dhbwstuttgart.bytecode.constraint.TPHConstraint.Relation;
 import de.dhbwstuttgart.bytecode.utilities.MethodAndTPH;
+import de.dhbwstuttgart.bytecode.utilities.MethodUtility;
+import de.dhbwstuttgart.bytecode.utilities.Resolver;
 import de.dhbwstuttgart.syntaxtree.AbstractASTWalker;
 import de.dhbwstuttgart.syntaxtree.Constructor;
 import de.dhbwstuttgart.syntaxtree.Field;
@@ -48,6 +50,7 @@ public class TPHExtractor extends AbstractASTWalker {
 	final ArrayList<ResultPair<TypePlaceholder, TypePlaceholder>> allPairs = new ArrayList<>();
 	public final ArrayList<TPHConstraint> allCons = new ArrayList<>();
 	private ResultSet resultSet;
+	private Resolver resolver;
 
 	public TPHExtractor() {
 
@@ -55,6 +58,11 @@ public class TPHExtractor extends AbstractASTWalker {
 
 	public void setResultSet(ResultSet resultSet) {
 		this.resultSet = resultSet;
+		this.resolver = new Resolver(resultSet);
+	}
+
+	public Resolver getResolver() {
+		return resolver;
 	}
 
 	@Override
@@ -153,7 +161,8 @@ public class TPHExtractor extends AbstractASTWalker {
 	@Override
 	public void visit(Method method) {
 		inMethod = true;
-		methodAndTph = new MethodAndTPH(method.name);
+		String id = MethodUtility.createID(resolver,method);
+		methodAndTph = new MethodAndTPH(id);
 		super.visit(method);
 		inMethod = false;
 		ListOfMethodsAndTph.add(methodAndTph);
diff --git a/src/main/java/de/dhbwstuttgart/bytecode/utilities/MethodAndTPH.java b/src/main/java/de/dhbwstuttgart/bytecode/utilities/MethodAndTPH.java
index c2c0210e..d8eed39c 100644
--- a/src/main/java/de/dhbwstuttgart/bytecode/utilities/MethodAndTPH.java
+++ b/src/main/java/de/dhbwstuttgart/bytecode/utilities/MethodAndTPH.java
@@ -9,7 +9,7 @@ import de.dhbwstuttgart.typeinference.result.ResultPair;
 
 public class MethodAndTPH {
 	
-	private String name;
+	private String id;
 	private final ArrayList<String> tphs = new ArrayList<>();
 	//private final ArrayList<GenericInsertPair> pairs = new ArrayList<>();
 	private final ArrayList<ResultPair<TypePlaceholder, TypePlaceholder>> pairs = new ArrayList<>();
@@ -17,7 +17,7 @@ public class MethodAndTPH {
 	private final ArrayList<String> localTphs = new ArrayList<>();
 
 	public MethodAndTPH(String name) {
-		this.name = name;
+		this.id = name;
 	}
 
 	public ArrayList<String> getTphs() {
@@ -31,8 +31,8 @@ public class MethodAndTPH {
 		return pairs;
 	}
 	
-	public String getName() {
-		return name;
+	public String getId() {
+		return id;
 	}
 
 	public ArrayList<String> getLocalTphs() {
diff --git a/src/main/java/de/dhbwstuttgart/bytecode/utilities/MethodUtility.java b/src/main/java/de/dhbwstuttgart/bytecode/utilities/MethodUtility.java
new file mode 100644
index 00000000..6a84e97c
--- /dev/null
+++ b/src/main/java/de/dhbwstuttgart/bytecode/utilities/MethodUtility.java
@@ -0,0 +1,34 @@
+/**
+ * 
+ */
+package de.dhbwstuttgart.bytecode.utilities;
+
+import java.util.Iterator;
+
+import de.dhbwstuttgart.syntaxtree.FormalParameter;
+import de.dhbwstuttgart.syntaxtree.Method;
+
+/**
+ * @author fayez
+ *
+ */
+public class MethodUtility {
+	/**
+	 * Creates an ID for a method
+	 * 
+	 * @param resolver type Resolver
+	 * @param method   for which the ID will be generated
+	 * @return ID for the given method. 
+	 * 	ID = ReturntypeMethodname(Parametertypes)
+	 */
+	public static String createID(Resolver resolver, Method method) {
+		String id = resolver.getResolvedType(method.getReturnType()) + method.name + "(";
+		Iterator<FormalParameter> itr = method.getParameterList().iterator();
+		while (itr.hasNext()) {
+			FormalParameter fp = itr.next();
+			id += resolver.getResolvedType(fp.getType());
+		}
+		id += ")";
+		return id;
+	}
+}
diff --git a/src/main/java/de/dhbwstuttgart/bytecode/utilities/Resolver.java b/src/main/java/de/dhbwstuttgart/bytecode/utilities/Resolver.java
new file mode 100644
index 00000000..f581b374
--- /dev/null
+++ b/src/main/java/de/dhbwstuttgart/bytecode/utilities/Resolver.java
@@ -0,0 +1,28 @@
+/**
+ * 
+ */
+package de.dhbwstuttgart.bytecode.utilities;
+
+import de.dhbwstuttgart.bytecode.descriptor.TypeToDescriptor;
+import de.dhbwstuttgart.syntaxtree.type.RefTypeOrTPHOrWildcardOrGeneric;
+import de.dhbwstuttgart.typeinference.result.ResultSet;
+
+/**
+ * @author fayez
+ *
+ */
+public class Resolver {
+	
+	private ResultSet resultSet;
+
+	/**
+	 * @param resultSet
+	 */
+	public Resolver(ResultSet resultSet) {
+		this.resultSet = resultSet;
+	}
+	
+	public String getResolvedType(RefTypeOrTPHOrWildcardOrGeneric type) {
+		return resultSet.resolveType(type).resolvedType.acceptTV(new TypeToDescriptor());
+	}
+}
diff --git a/src/main/java/de/dhbwstuttgart/bytecode/utilities/Simplify.java b/src/main/java/de/dhbwstuttgart/bytecode/utilities/Simplify.java
index 2a4a3bd2..a88e0740 100644
--- a/src/main/java/de/dhbwstuttgart/bytecode/utilities/Simplify.java
+++ b/src/main/java/de/dhbwstuttgart/bytecode/utilities/Simplify.java
@@ -14,11 +14,12 @@ import de.dhbwstuttgart.bytecode.constraint.EqualConstraint;
 import de.dhbwstuttgart.bytecode.constraint.ExtendsConstraint;
 import de.dhbwstuttgart.bytecode.constraint.TPHConstraint;
 import de.dhbwstuttgart.bytecode.constraint.TPHConstraint.Relation;
+import de.dhbwstuttgart.syntaxtree.Method;
 import de.dhbwstuttgart.syntaxtree.type.TypePlaceholder;
 
 public class Simplify {
 
-	public static HashMap<TPHConstraint, HashSet<String>> simplifyConstraints(String name, TPHExtractor tphExtractor,
+	public static HashMap<TPHConstraint, HashSet<String>> simplifyConstraints(Method method, TPHExtractor tphExtractor,
 			ArrayList<String> tphsClass) {
 		// 1. check if there are any simple cycles like L<R and R<L:
 		// a) yes => set L=R and:
@@ -44,12 +45,13 @@ public class Simplify {
 			}
 		}
 		ArrayList<TPHConstraint> consToRemove = new ArrayList<>();
-
+		
+		String id = MethodUtility.createID(tphExtractor.getResolver(), method);
 		// get all tph of the method
 		ArrayList<String> methodTphs = new ArrayList<>();
 		ArrayList<String> localTphs = new ArrayList<>();
 		for (MethodAndTPH m : tphExtractor.ListOfMethodsAndTph) {
-			if (m.getName().equals(name)) {
+			if (m.getId().equals(id)) {
 				methodTphs = m.getTphs();
 				localTphs = m.getLocalTphs();
 				break;
diff --git a/src/test/resources/bytecode/javFiles/OL.jav b/src/test/resources/bytecode/javFiles/OL.jav
index da049d24..ec5f9ab5 100644
--- a/src/test/resources/bytecode/javFiles/OL.jav
+++ b/src/test/resources/bytecode/javFiles/OL.jav
@@ -13,12 +13,12 @@ public class OL     {
      
 // if the class contains just this method, then correct BC will be generated.
 // But if another methods are contained then the generated BC is not correct
-/*	m(x) {
+	m(x) {
 		//x.add(1);
 		x.addAll(x);
 		return x;
 	}
-*/	
+	
 }
 
 public class OLMain   {