diff --git a/org.ntlab.interactiveFeatureLocator/src/interactivefeaturelocator/actions/InteractiveFeatureLocatorAction.java b/org.ntlab.interactiveFeatureLocator/src/interactivefeaturelocator/actions/InteractiveFeatureLocatorAction.java
index 8ab2517..35ca8c9 100644
--- a/org.ntlab.interactiveFeatureLocator/src/interactivefeaturelocator/actions/InteractiveFeatureLocatorAction.java
+++ b/org.ntlab.interactiveFeatureLocator/src/interactivefeaturelocator/actions/InteractiveFeatureLocatorAction.java
@@ -4,7 +4,7 @@
 import interactivefeaturelocator.model.DerivationManager;
 import interactivefeaturelocator.model.Pattern;
 import interactivefeaturelocator.model.ProgressMonitor;
-import interactivefeaturelocator.test.Test;
+import interactivefeaturelocator.views.GUIUtil;
 import interactivefeaturelocator.views.InteractiveDerivationView;
 import interactivefeaturelocator.views.TraceView;
 
diff --git a/org.ntlab.interactiveFeatureLocator/src/interactivefeaturelocator/model/CallTreeGraphNode.java b/org.ntlab.interactiveFeatureLocator/src/interactivefeaturelocator/model/CallTreeGraphNode.java
index 79874dd..a47f96b 100644
--- a/org.ntlab.interactiveFeatureLocator/src/interactivefeaturelocator/model/CallTreeGraphNode.java
+++ b/org.ntlab.interactiveFeatureLocator/src/interactivefeaturelocator/model/CallTreeGraphNode.java
@@ -1,6 +1,6 @@
 package interactivefeaturelocator.model;
 
-import interactivefeaturelocator.test.Test;
+import interactivefeaturelocator.views.GUIUtil;
 
 import org.eclipse.jdt.core.JavaModelException;
 import org.eclipse.zest.core.widgets.GraphNode;
@@ -24,15 +24,8 @@
 		
 	public void highlight() {
 		this.focus = true;
-		try {
-			Test test = new Test();
-			System.out.println(this.getSize().height() + ", " + this.getSize().width());
-			test.openEditor(this.getMethod());
-		} catch (JavaModelException e) {
-			// TODO Auto-generated catch block
-			e.printStackTrace();
-		}
-		
+		System.out.println(this.getSize().height() + ", " + this.getSize().width());
+		GUIUtil.openEditor(this.getMethod());		
 	}
 	
 	public MethodExecution getMethod() {
diff --git a/org.ntlab.interactiveFeatureLocator/src/interactivefeaturelocator/model/DerivationUnit.java b/org.ntlab.interactiveFeatureLocator/src/interactivefeaturelocator/model/DerivationUnit.java
index efb64f2..2058404 100644
--- a/org.ntlab.interactiveFeatureLocator/src/interactivefeaturelocator/model/DerivationUnit.java
+++ b/org.ntlab.interactiveFeatureLocator/src/interactivefeaturelocator/model/DerivationUnit.java
@@ -1,7 +1,7 @@
 package interactivefeaturelocator.model;
 
 //import interactivefeaturelocator.layout.CallTreeLayout;
-import interactivefeaturelocator.test.Test;
+import interactivefeaturelocator.views.GUIUtil;
 
 import java.util.ArrayList;
 import java.util.HashSet;
diff --git a/org.ntlab.interactiveFeatureLocator/src/interactivefeaturelocator/test/Test.java b/org.ntlab.interactiveFeatureLocator/src/interactivefeaturelocator/test/Test.java
deleted file mode 100644
index 8c338e3..0000000
--- a/org.ntlab.interactiveFeatureLocator/src/interactivefeaturelocator/test/Test.java
+++ /dev/null
@@ -1,110 +0,0 @@
-package interactivefeaturelocator.test;
-
-import java.io.File;
-import java.util.Arrays;
-import java.util.HashSet;
-import java.util.Set;
-
-import org.eclipse.core.resources.IFile;
-import org.eclipse.core.resources.IMarker;
-import org.eclipse.core.resources.IProject;
-import org.eclipse.core.resources.IWorkspaceRoot;
-import org.eclipse.core.resources.ResourcesPlugin;
-import org.eclipse.core.runtime.CoreException;
-import org.eclipse.core.runtime.IPath;
-import org.eclipse.core.runtime.Path;
-import org.eclipse.jdt.core.IJavaElement;
-import org.eclipse.jdt.core.IJavaProject;
-import org.eclipse.jdt.core.IMethod;
-import org.eclipse.jdt.core.IType;
-import org.eclipse.jdt.core.JavaCore;
-import org.eclipse.jdt.core.JavaModelException;
-import org.eclipse.jface.viewers.IDecoration;
-import org.eclipse.ui.IEditorInput;
-import org.eclipse.ui.IEditorPart;
-import org.eclipse.ui.IWorkbenchPage;
-import org.eclipse.ui.IWorkbenchWindow;
-import org.eclipse.ui.PartInitException;
-import org.eclipse.ui.PlatformUI;
-import org.eclipse.ui.ide.IDE;
-import org.eclipse.ui.part.FileEditorInput;
-import org.ntlab.trace.MethodExecution;
-
-public class Test {
-	private IJavaProject javaProject;
-	private IWorkspaceRoot root;
-	
-	public Test() throws JavaModelException {
-		root = ResourcesPlugin.getWorkspace().getRoot();
-		IProject project = root.getProject("jedit");
-		javaProject = JavaCore.create(project);
-		IWorkbenchPage page = PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage();
-		page.getActiveEditor();
-//		System.out.println(javaProject.getChildren()[0].getElementName());
-//		IFile file = new IFile("C:\\Users\\student\\Desktop\\fujioka\\workspace_FeatureLocation\\InteractiveFeatureLocator\\src\\interactivefeaturelocator\\test\\Test.java");
-//		page.openEditor(input, editorId);
-//		IType type = javaProject.findType("org.gjt.sp.jedit.gui.LogViewer$MyFilteredListModel");
-//		System.out.println(type.getDeclaringType().getElementName());
-//		if (type.isClass()) {
-//			System.out.println("Class!");
-//			IMethod[] methods = type.getMethods();
-//			for (IMethod method : methods) {
-//				System.out.println(method.getElementName());
-////				method.get
-//			}
-//		} else {
-//			System.out.println("Not Class");
-//		}
-	}
-	
-	public IMethod m(String methodSigniture) throws JavaModelException {
-		String[] fragments = methodSigniture.split("\\s", 3);
-		String signature = fragments[fragments.length-1];
-		int n = signature.split("\\(")[0].lastIndexOf(".");
-		String classSignature = signature.substring(0, n);
-		String methodData = signature.substring(n+1);
-		String[] fragments2 = methodData.split("\\(");
-		String methodName = fragments2[0];
-//		int m = fragments2[1].indexOf("\\)");
-		String s = fragments2[1].substring(0, fragments2[1].length()-1);
-		String[] parameters = s.split(",");
-//		String[] parameters = fragments2[1].substring(0, fragments2[1].indexOf("\\)")).split(",");
-		IType type = javaProject.findType(classSignature);
-//		System.out.println(type.getDeclaringType().getElementName());
-//		if (type.isClass()) {
-//			System.out.println("Class!");
-//			IMethod[] methods = type.getMethods();
-//			for (IMethod method : methods) {
-//				System.out.println(method.getElementName());
-////				method.get
-//			}
-//		} else {
-//			System.out.println("Not Class");
-//		}
-//		System.out.println("type: " + type.getElementName());
-		if (type.getMethods().length != 0) {
-			IMethod method = type.getMethod(methodName, parameters);
-			return method;
-		}
-		return null;
-	}
-	
-	public void openEditor(MethodExecution me) {
-		String signature = me.getSignature();
-		System.out.println("Signature: " + signature);
-		IPath path = new Path("jEdit/org/gjt/sp/jedit/GUIUtilities.java");
-		IFile file = root.getFile(path);
-		int line = 10;
-		IWorkbenchPage page = PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage();
-		try {
-			IMarker marker = file.createMarker(IMarker.TEXT);
-			marker.setAttribute(IMarker.LINE_NUMBER, line);
-//			IDE.openEditor(page, file);
-			IDE.openEditor(page, marker);
-			System.out.println("open: " + file.getName());
-		} catch (CoreException e) {
-			// TODO Auto-generated catch block
-			e.printStackTrace();
-		}
-	}
-}
diff --git a/org.ntlab.interactiveFeatureLocator/src/interactivefeaturelocator/views/GUIUtil.java b/org.ntlab.interactiveFeatureLocator/src/interactivefeaturelocator/views/GUIUtil.java
new file mode 100644
index 0000000..d70eed3
--- /dev/null
+++ b/org.ntlab.interactiveFeatureLocator/src/interactivefeaturelocator/views/GUIUtil.java
@@ -0,0 +1,94 @@
+package interactivefeaturelocator.views;
+
+import java.io.File;
+import java.util.Arrays;
+import java.util.HashSet;
+import java.util.Set;
+
+import org.eclipse.core.resources.IFile;
+import org.eclipse.core.resources.IMarker;
+import org.eclipse.core.resources.IProject;
+import org.eclipse.core.resources.IWorkspaceRoot;
+import org.eclipse.core.resources.ResourcesPlugin;
+import org.eclipse.core.runtime.CoreException;
+import org.eclipse.core.runtime.IPath;
+import org.eclipse.core.runtime.Path;
+import org.eclipse.jdt.core.IJavaElement;
+import org.eclipse.jdt.core.IJavaProject;
+import org.eclipse.jdt.core.IMethod;
+import org.eclipse.jdt.core.IType;
+import org.eclipse.jdt.core.JavaCore;
+import org.eclipse.jdt.core.JavaModelException;
+import org.eclipse.jface.viewers.IDecoration;
+import org.eclipse.ui.IEditorInput;
+import org.eclipse.ui.IEditorPart;
+import org.eclipse.ui.IWorkbenchPage;
+import org.eclipse.ui.IWorkbenchWindow;
+import org.eclipse.ui.PartInitException;
+import org.eclipse.ui.PlatformUI;
+import org.eclipse.ui.ide.IDE;
+import org.eclipse.ui.part.FileEditorInput;
+import org.ntlab.trace.MethodExecution;
+
+public class GUIUtil {
+	private static IJavaProject javaProject;
+	private static IWorkspaceRoot root;
+	static {
+		root = ResourcesPlugin.getWorkspace().getRoot();
+		IProject project = root.getProject("jedit");
+		javaProject = JavaCore.create(project);
+		IWorkbenchPage page = PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage();
+		page.getActiveEditor();
+	}
+	
+	public IMethod m(String methodSigniture) throws JavaModelException {
+		String[] fragments = methodSigniture.split("\\s", 3);
+		String signature = fragments[fragments.length-1];
+		int n = signature.split("\\(")[0].lastIndexOf(".");
+		String classSignature = signature.substring(0, n);
+		String methodData = signature.substring(n+1);
+		String[] fragments2 = methodData.split("\\(");
+		String methodName = fragments2[0];
+//		int m = fragments2[1].indexOf("\\)");
+		String s = fragments2[1].substring(0, fragments2[1].length()-1);
+		String[] parameters = s.split(",");
+//		String[] parameters = fragments2[1].substring(0, fragments2[1].indexOf("\\)")).split(",");
+		IType type = javaProject.findType(classSignature);
+//		System.out.println(type.getDeclaringType().getElementName());
+//		if (type.isClass()) {
+//			System.out.println("Class!");
+//			IMethod[] methods = type.getMethods();
+//			for (IMethod method : methods) {
+//				System.out.println(method.getElementName());
+////				method.get
+//			}
+//		} else {
+//			System.out.println("Not Class");
+//		}
+//		System.out.println("type: " + type.getElementName());
+		if (type.getMethods().length != 0) {
+			IMethod method = type.getMethod(methodName, parameters);
+			return method;
+		}
+		return null;
+	}
+	
+	public static void openEditor(MethodExecution me) {
+		String signature = me.getSignature();
+		System.out.println("Signature: " + signature);
+		IPath path = new Path("jEdit/org/gjt/sp/jedit/GUIUtilities.java");
+		IFile file = root.getFile(path);
+		int line = 10;
+		IWorkbenchPage page = PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage();
+		try {
+			IMarker marker = file.createMarker(IMarker.TEXT);
+			marker.setAttribute(IMarker.LINE_NUMBER, line);
+//			IDE.openEditor(page, file);
+			IDE.openEditor(page, marker);
+			System.out.println("open: " + file.getName());
+		} catch (CoreException e) {
+			// TODO Auto-generated catch block
+			e.printStackTrace();
+		}
+	}
+}