diff --git a/src/main/java/de/dhbwstuttgart/core/JavaTXCompiler.java b/src/main/java/de/dhbwstuttgart/core/JavaTXCompiler.java
index 2ed5a67d..a24a94d5 100644
--- a/src/main/java/de/dhbwstuttgart/core/JavaTXCompiler.java
+++ b/src/main/java/de/dhbwstuttgart/core/JavaTXCompiler.java
@@ -44,12 +44,14 @@ import java.io.FileOutputStream;
 import java.io.FileWriter;
 import java.io.IOException;
 import java.io.Writer;
+import java.io.OutputStreamWriter;
 import java.net.URL;
 import java.net.URLClassLoader;
 import java.util.*;
 import java.util.function.Function;
 import java.util.stream.Collectors;
-//import org.apache.commons.io.output.NullOutputStream;
+import org.apache.commons.io.output.NullOutputStream;
+
 
 public class JavaTXCompiler {
 
@@ -478,11 +480,11 @@ public class JavaTXCompiler {
 		final ConstraintSet<Pair> cons = getConstraints();
 		Set<Set<UnifyPair>> results = new HashSet<>();
 		try {
-			Writer logFile = // new OutputStreamWriter(new NullOutputStream());
+			Writer logFile =  new OutputStreamWriter(new NullOutputStream());
 					// new FileWriter(new
 					// File(System.getProperty("user.dir")+"/src/test/resources/logFiles/"+"log_"+sourceFiles.keySet().iterator().next().getName()));
-					new FileWriter(new File(System.getProperty("user.dir") + "/logFiles/" + "log_"
-							+ sourceFiles.keySet().iterator().next().getName()));
+					//new FileWriter(new File(System.getProperty("user.dir") + "/logFiles/" + "log_"
+					//		+ sourceFiles.keySet().iterator().next().getName()));
 			IFiniteClosure finiteClosure = UnifyTypeFactory.generateFC(allClasses, logFile, classLoader);
 			System.out.println(finiteClosure);
 			ConstraintSet<UnifyPair> unifyCons = UnifyTypeFactory.convert(cons);
diff --git a/src/main/java/de/dhbwstuttgart/typeinference/unify/TypeUnifyTask.java b/src/main/java/de/dhbwstuttgart/typeinference/unify/TypeUnifyTask.java
index 8e940d70..b1cae201 100644
--- a/src/main/java/de/dhbwstuttgart/typeinference/unify/TypeUnifyTask.java
+++ b/src/main/java/de/dhbwstuttgart/typeinference/unify/TypeUnifyTask.java
@@ -172,9 +172,9 @@ public class TypeUnifyTask extends RecursiveTask<Set<Set<UnifyPair>>>  {
 			thNo = totalnoOfThread;
 			writeLog("thNo2 " + thNo);
 			try {
-				this.logFile = //new OutputStreamWriter(new NullOutputStream());
+				this.logFile = new OutputStreamWriter(new NullOutputStream());
 				//new FileWriter(new File(System.getProperty("user.dir")+"/src/test/resources/logFiles/"+"Thread_"+thNo));
-				new FileWriter(new File(System.getProperty("user.dir")+"/logFiles/"+"Thread_"+thNo));
+				//new FileWriter(new File(System.getProperty("user.dir")+"/logFiles/"+"Thread_"+thNo));
 				logFile.write("");
 			}
 			catch (IOException e) {