diff --git a/org.ntlab.traceCollector/src/org/ntlab/traceCollector/tracer/trace/Alias.java b/org.ntlab.traceCollector/src/org/ntlab/traceCollector/tracer/trace/Alias.java
index 0628100..4ffeaff 100644
--- a/org.ntlab.traceCollector/src/org/ntlab/traceCollector/tracer/trace/Alias.java
+++ b/org.ntlab.traceCollector/src/org/ntlab/traceCollector/tracer/trace/Alias.java
@@ -33,6 +33,7 @@
 	public static final int OCCURRENCE_EXP_FIRST_ARG = 1;
 	public static final int OCCURRENCE_EXP_RETURN = -1;
 	
+	
 	public Alias(String objectId, TracePoint occurrencePoint, int occurrenceExp) {
 		this.objectId = objectId;
 		this.occurrencePoint = occurrencePoint;
diff --git a/org.ntlab.traceCollector/src/org/ntlab/traceCollector/tracer/trace/TraceJSON.java b/org.ntlab.traceCollector/src/org/ntlab/traceCollector/tracer/trace/TraceJSON.java
index f04a18a..7a5037c 100644
--- a/org.ntlab.traceCollector/src/org/ntlab/traceCollector/tracer/trace/TraceJSON.java
+++ b/org.ntlab.traceCollector/src/org/ntlab/traceCollector/tracer/trace/TraceJSON.java
@@ -1033,35 +1033,6 @@
 		}
 		return startAliasList;
 	}
-	
-//	public static String findValueObjId(Statement statement, int occurrenceEXP) {
-//		String valueObjId = "";
-//		if (statement instanceof FieldAccess) {
-//			valueObjId = ((FieldAccess) statement).getValueObjId();
-//		} else if (statement instanceof FieldUpdate) {
-//			valueObjId = ((FieldUpdate)statement).getValueObjId();
-//		} else if (statement instanceof ArrayAccess) {
-//			valueObjId = ((ArrayAccess)statement).getValueObjectId();
-//		} else if (statement instanceof ArrayUpdate) {
-//			valueObjId = ((ArrayUpdate)statement).getValueObjectId();
-//		} else if (statement instanceof ArrayCreate) {
-//			valueObjId = ((ArrayCreate)statement).getArrayObjectId();
-//		} else if (statement instanceof MethodInvocation) {
-//			MethodExecution me = ((MethodInvocation)statement).getCalledMethodExecution();
-//			if (occurrenceEXP == Alias.OCCURRENCE_EXP_RETURN) {
-//				valueObjId = me.getReturnValue().getId();	
-//			} else if (occurrenceEXP == Alias.OCCURRENCE_EXP_RECEIVER) {
-//				valueObjId = me.getThisObjId();
-//			} else {
-//				ArrayList<ObjectReference> args = me.getArguments();
-//				int index = occurrenceEXP - Alias.OCCURRENCE_EXP_FIRST_ARG;
-//				if (index >= 0 && index < args.size()) {
-//					valueObjId = args.get(index).getId();
-//				}
-//			}
-//		}
-//		return valueObjId;
-//	}
 
 	public static Alias getAlias(String objectId, TracePoint occurrencePoint, int occurrenceExp) {
 		return new Alias(objectId, occurrencePoint, occurrenceExp);