diff --git a/src/main/java/de/dhbwstuttgart/bytecode/constraint/TPHConstraint.java b/src/main/java/de/dhbwstuttgart/bytecode/constraint/TPHConstraint.java
index ae51c18e..7e857600 100644
--- a/src/main/java/de/dhbwstuttgart/bytecode/constraint/TPHConstraint.java
+++ b/src/main/java/de/dhbwstuttgart/bytecode/constraint/TPHConstraint.java
@@ -65,7 +65,7 @@ public class TPHConstraint {
 		}
 	}
 	
-	/*
+	
 	@Override
 	public String toString() {
 		if(rel == Relation.EXTENDS) {
@@ -74,13 +74,4 @@ public class TPHConstraint {
 			return left + " = " + right;
 		}
 	}
-	*/
-	public String toString() {
-		if(rel == Relation.EXTENDS) {
-			return "new TPHConstraint(\"" + left + "\", \"" + right + "\", Relation.EXTENDS)";
-		}
-		else {
-			return "new TPHConstraint(\"" + left + "\", \"" + right + "\", Relation.EQUAL)";
-		}
-	}
 }
diff --git a/src/main/java/de/dhbwstuttgart/bytecode/insertGenerics/ClassConstraint.java b/src/main/java/de/dhbwstuttgart/bytecode/insertGenerics/ClassConstraint.java
index afbae005..130f0ac6 100644
--- a/src/main/java/de/dhbwstuttgart/bytecode/insertGenerics/ClassConstraint.java
+++ b/src/main/java/de/dhbwstuttgart/bytecode/insertGenerics/ClassConstraint.java
@@ -13,12 +13,4 @@ public class ClassConstraint extends TPHConstraint {
     /*public ClassConstraint(TPHConstraint constraint) {
         this.constraint = constraint;
     }*/
-    public String toString() {
-		if(rel == Relation.EXTENDS) {
-			return "new ClassConstraint(\"" + left + "\", \"" + right + "\", Relation.EXTENDS)";
-		}
-		else {
-			return "new ClassConstraint(\"" + left + "\", \"" + right + "\", Relation.EQUAL)";
-		}
-	}
 }
diff --git a/src/main/java/de/dhbwstuttgart/bytecode/insertGenerics/FamilyOfGeneratedGenerics.java b/src/main/java/de/dhbwstuttgart/bytecode/insertGenerics/FamilyOfGeneratedGenerics.java
index 21b2c502..11c2a7c3 100644
--- a/src/main/java/de/dhbwstuttgart/bytecode/insertGenerics/FamilyOfGeneratedGenerics.java
+++ b/src/main/java/de/dhbwstuttgart/bytecode/insertGenerics/FamilyOfGeneratedGenerics.java
@@ -832,25 +832,6 @@ public class FamilyOfGeneratedGenerics {
 
         return tempMethodConstraintsWithPosition;
     }
-    
-    public String toString() {
-    	String ret =
-    	"List<ClassConstraint> classConstraintsTest = new ArrayList<>();\n";
-    	for(ClassConstraint cC: classConstraints) {
-    		ret = ret + "classConstraintsTest.add(" + cC.toString() + ");\n";
-    	}
-    	ret = ret + "HashMap<String, List<MethodConstraint>> methodConstraintsWithPositionTest = new HashMap<>();\n";
-        ret = ret + "List<MethodConstraint> lmc;\n";
-    	for (String methName : methodConstraintsWithPosition.keySet()) {
-        	String consSet = "";
-        	ret = ret + "lmc = new ArrayList<>();\n";
-        	for (MethodConstraint methConstrs : methodConstraintsWithPosition.get(methName)) {
-        		consSet = consSet + "lmc.add(" + methConstrs + ");\n";
-        	}
-        	ret = ret + consSet + "methodConstraintsWithPositionTest.put(\""+ methName + "\",  lmc);\n";
-        }
-        return ret;
-    }
 
 
 }
diff --git a/src/main/java/de/dhbwstuttgart/bytecode/insertGenerics/MethodConstraint.java b/src/main/java/de/dhbwstuttgart/bytecode/insertGenerics/MethodConstraint.java
index c0000f20..89533594 100644
--- a/src/main/java/de/dhbwstuttgart/bytecode/insertGenerics/MethodConstraint.java
+++ b/src/main/java/de/dhbwstuttgart/bytecode/insertGenerics/MethodConstraint.java
@@ -7,13 +7,4 @@ public class MethodConstraint extends TPHConstraint {
     public MethodConstraint(String left, String right, Relation rel) {
         super(left, right, rel);
     }
-    
-    public String toString() {
-		if(rel == Relation.EXTENDS) {
-			return "new MethodConstraint(\"" + left + "\", \"" + right + "\", Relation.EXTENDS)";
-		}
-		else {
-			return "new MethodConstraint(\"" + left + "\", \"" + right + "\", Relation.EQUAL)";
-		}
-	}
 }
diff --git a/src/test/java/insertGenerics/TestAny.java b/src/test/java/insertGenerics/TestAny.java
index e40c205e..9ef6d901 100644
--- a/src/test/java/insertGenerics/TestAny.java
+++ b/src/test/java/insertGenerics/TestAny.java
@@ -54,12 +54,12 @@ public class TestAny {
         classConstraintsTest.add(new ClassConstraint("N", "U", Relation.EXTENDS));
         classConstraintsTest.add(new ClassConstraint("U", "O", Relation.EXTENDS));
         classConstraintsTest.add(new ClassConstraint("O", "java/lang/Object", Relation.EXTENDS));
-        HashMap<String, List<MethodConstraint>> methodConstraintsWithPositionTest = new HashMap<>();
-        List<MethodConstraint> lmc;
-        lmc = new ArrayList<>();
+        HashMap<String, Set<MethodConstraint>> methodConstraintsWithPositionTest = new HashMap<>();
+        Set<MethodConstraint> lmc;
+        lmc = new HashSet<>();
         lmc.add(new MethodConstraint("R", "java/lang/Object", Relation.EXTENDS));
         methodConstraintsWithPositionTest.put("TPH RanyMethod()",  lmc);
-        lmc = new ArrayList<>();
+        lmc = new HashSet<>();
         methodConstraintsWithPositionTest.put("TPH UotherMethod(TPH U)",  lmc);
         
         FamilyOfGeneratedGenerics fogg = compiler.fogg;
@@ -67,8 +67,11 @@ public class TestAny {
         Set<ClassConstraint> expectedClassCons = new HashSet<>(classConstraintsTest);
         
         assertEquals(expectedClassCons, computedClassCons);
+
+        HashMap<String, Set<MethodConstraint>> methodConstraintsWithPositionComputed = new HashMap<>();
+        fogg.methodConstraintsWithPosition.forEach((s, l) -> methodConstraintsWithPositionComputed.put(s,new HashSet<>(l)));
         
-        assertEquals(methodConstraintsWithPositionTest, fogg.methodConstraintsWithPosition);
+        assertEquals(methodConstraintsWithPositionTest, methodConstraintsWithPositionComputed);
         
         //compiler.generateBytecode(rootDirectory+"xxx.class", results, simplifyResultsForAllSourceFiles);
         for(File f : compiler.sourceFiles.keySet()){