diff --git a/src/main/java/de/dhbwstuttgart/core/JavaTXCompiler.java b/src/main/java/de/dhbwstuttgart/core/JavaTXCompiler.java
index 91e6e673..c93db4a4 100644
--- a/src/main/java/de/dhbwstuttgart/core/JavaTXCompiler.java
+++ b/src/main/java/de/dhbwstuttgart/core/JavaTXCompiler.java
@@ -71,7 +71,7 @@ public class JavaTXCompiler {
 	Boolean resultmodel = false;
     public final Map<File, SourceFile> sourceFiles = new HashMap<>();
 
-    Boolean log = true; //gibt an ob ein Log-File nach System.getProperty("user.dir")+""/logFiles/"" geschrieben werden soll?
+    Boolean log = false; //gibt an ob ein Log-File nach System.getProperty("user.dir")+""/logFiles/"" geschrieben werden soll?
     public volatile UnifyTaskModel usedTasks = new UnifyTaskModel();
     private final DirectoryClassLoader classLoader;
 
diff --git a/src/main/java/de/dhbwstuttgart/typeinference/constraints/ConstraintSet.java b/src/main/java/de/dhbwstuttgart/typeinference/constraints/ConstraintSet.java
index cd3301c1..f52001b3 100644
--- a/src/main/java/de/dhbwstuttgart/typeinference/constraints/ConstraintSet.java
+++ b/src/main/java/de/dhbwstuttgart/typeinference/constraints/ConstraintSet.java
@@ -75,11 +75,12 @@ public class ConstraintSet<A> {
                     	
                     	Constraint<B> newConst = as.stream()
                     			.map(o)
-                    			.collect(Collectors.toCollection((as.getExtendConstraint() != null)
-                    					? () -> new Constraint<B> (as.isInherited(),
-                    							                   as.getExtendConstraint().stream().map(o).collect(Collectors.toCollection(Constraint::new)),
-                    							                   as.getmethodSignatureConstraint().stream().map(o).collect(Collectors.toCollection(HashSet::new))) 
-                    					: () -> new Constraint<B> (as.isInherited())
+                    			.collect(Collectors.toCollection((
+                    					() -> new Constraint<B> (as.isInherited(),
+                    											 (as.getExtendConstraint() != null)
+                    											     ? as.getExtendConstraint().stream().map(o).collect(Collectors.toCollection(Constraint::new))
+                    											     : null,
+                    							                 as.getmethodSignatureConstraint().stream().map(o).collect(Collectors.toCollection(HashSet::new)))) 
                     			));                    							
                     	
                     	//CSA2CSB.put(as, newConst);
diff --git a/src/main/java/de/dhbwstuttgart/typeinference/unify/TypeUnifyTask.java b/src/main/java/de/dhbwstuttgart/typeinference/unify/TypeUnifyTask.java
index 17fbcedd..01834a75 100644
--- a/src/main/java/de/dhbwstuttgart/typeinference/unify/TypeUnifyTask.java
+++ b/src/main/java/de/dhbwstuttgart/typeinference/unify/TypeUnifyTask.java
@@ -668,7 +668,7 @@ public class TypeUnifyTask extends RecursiveTask<Set<Set<UnifyPair>>>  {
 				                    .filter(x -> x.size()==1)
 				                    .map(y -> y.stream().findFirst().get())
 				                    .collect(Collectors.toCollection(HashSet::new)));
-		
+		oneElems.forEach(x -> { if (x instanceof Constraint) methodSignatureConstraint.addAll(((Constraint<UnifyPair>)x).getmethodSignatureConstraint());});
 		//optNextSet: Eine mehrelementige Menge, wenn vorhanden
 		Optional<Set<? extends Set<UnifyPair>>> optNextSet = topLevelSets.stream().filter(x -> x.size()>1).findAny();
 		
diff --git a/src/test/java/TestComplete.java b/src/test/java/TestComplete.java
index 43c8883d..d3ca98f4 100644
--- a/src/test/java/TestComplete.java
+++ b/src/test/java/TestComplete.java
@@ -740,7 +740,7 @@ public class TestComplete {
     @Test
     public void testLambdaRunnable() throws Exception {
         var classFiles = generateClassFiles(new ByteArrayClassLoader(), "LambdaRunnable.jav");
-        var clazz = classFiles.get("LambdaRunnable");
+        var clazz = classFiles.get("LamRunnable");
         var instance = clazz.getDeclaredConstructor().newInstance();
         //var m = clazz.getDeclaredMethod("m", Integer.class);
         //assertEquals(m.invoke(instance, 10), 60);