diff --git a/TracerOnJavassist/.classpath b/TracerOnJavassist/.classpath
index 59402b5..0bbfdf0 100644
--- a/TracerOnJavassist/.classpath
+++ b/TracerOnJavassist/.classpath
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <classpath>
 	<classpathentry kind="src" path="src"/>
-	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/jre7"/>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER"/>
 	<classpathentry kind="lib" path="javassist.jar"/>
 	<classpathentry kind="output" path="bin"/>
 </classpath>
diff --git a/TracerOnJavassist/src/constructor/A.java b/TracerOnJavassist/src/constructor/A.java
new file mode 100644
index 0000000..a162ed2
--- /dev/null
+++ b/TracerOnJavassist/src/constructor/A.java
@@ -0,0 +1,5 @@
+package constructor;
+
+public abstract class A {
+	public abstract A m(A a);
+}
diff --git a/TracerOnJavassist/src/constructor/B.java b/TracerOnJavassist/src/constructor/B.java
new file mode 100644
index 0000000..e1f6496
--- /dev/null
+++ b/TracerOnJavassist/src/constructor/B.java
@@ -0,0 +1,10 @@
+package constructor;
+
+public class B extends A {
+
+	@Override
+	public A m(A a) {
+		return a;
+	}
+
+}
diff --git a/TracerOnJavassist/src/constructor/Main.java b/TracerOnJavassist/src/constructor/Main.java
new file mode 100644
index 0000000..7b27b8d
--- /dev/null
+++ b/TracerOnJavassist/src/constructor/Main.java
@@ -0,0 +1,13 @@
+package constructor;
+
+public class Main {
+
+	/**
+	 * @param args
+	 */
+	public static void main(String[] args) {
+		B b = new  B();
+		A a = b.m(b);
+	}
+
+}
diff --git a/TracerOnJavassist/src/test/A.java b/TracerOnJavassist/src/test/A.java
deleted file mode 100644
index 5373aab..0000000
--- a/TracerOnJavassist/src/test/A.java
+++ /dev/null
@@ -1,5 +0,0 @@
-package test;
-
-public abstract class A {
-	public abstract A m(A a);
-}
diff --git a/TracerOnJavassist/src/test/B.java b/TracerOnJavassist/src/test/B.java
deleted file mode 100644
index 5badfba..0000000
--- a/TracerOnJavassist/src/test/B.java
+++ /dev/null
@@ -1,10 +0,0 @@
-package test;
-
-public class B extends A {
-
-	@Override
-	public A m(A a) {
-		return a;
-	}
-
-}
diff --git a/TracerOnJavassist/src/test/Main.java b/TracerOnJavassist/src/test/Main.java
deleted file mode 100644
index df9ea7d..0000000
--- a/TracerOnJavassist/src/test/Main.java
+++ /dev/null
@@ -1,13 +0,0 @@
-package test;
-
-public class Main {
-
-	/**
-	 * @param args
-	 */
-	public static void main(String[] args) {
-		B b = new  B();
-		A a = b.m(b);
-	}
-
-}
diff --git a/TracerOnJavassist/src/tracer/Tracer.java b/TracerOnJavassist/src/tracer/Tracer.java
index 97425d0..cf6d263 100644
--- a/TracerOnJavassist/src/tracer/Tracer.java
+++ b/TracerOnJavassist/src/tracer/Tracer.java
@@ -35,7 +35,7 @@
 	private static final String CONCRETE_STANDARD_CLASSES = "java.util.Vector|java.util.ArrayList|java.util.Stack |java.util.HashMap|java.util.HashSet|java.util.Hashtable|java.util.LinkedList|java.lang.Thread";
 
 	public static void main(String[] args) {
-		String packageName = "test"; // �w�肵���p�b�P�[�W�����̑S�N���X�ɃC���X�g�D�������e�[�V�������s��
+		String packageName = "constructor"; // �w�肵���p�b�P�[�W�����̑S�N���X�ɃC���X�g�D�������e�[�V�������s��
 		ClassLoader loader = Thread.currentThread().getContextClassLoader();
 		URL resource = loader.getResource(packageName);
 		File dir;