java.lang.reflect.InvocationTargetException 异常解决方法

在做djunit测试的时候，发生下面异常：

java.lang.reflect.InvocationTargetException
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:48)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:600)
	at jp.co.dgic.testing.common.DJUnitClassLoader.getModifiedClass(DJUnitClassLoader.java:106)
	at jp.co.dgic.testing.common.DJUnitClassLoader.findClass(DJUnitClassLoader.java:56)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:653)
	at jp.co.dgic.testing.common.DJUnitClassLoader.loadClass(DJUnitClassLoader.java:45)
	at jp.co.dgic.testing.common.DJUnitEclipseClassLoader.loadClass(DJUnitEclipseClassLoader.java:59)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:619)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.loadClass(RemoteTestRunner.java:683)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.loadClasses(RemoteTestRunner.java:425)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:445)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:673)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:386)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:196)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:48)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:600)
	at jp.co.dgic.eclipse.jdt.internal.junit.runner.DJUnitRunner.main(DJUnitRunner.java:49)
Caused by: java.io.IOException: Class not found
	at org.objectweb.asm.ClassReader.a(Unknown Source)
	at org.objectweb.asm.ClassReader.(Unknown Source)
	at org.objectweb.asm.ClassReader.(Unknown Source)
	at jp.co.dgic.testing.common.AsmClassModifier.getModifiedClass(AsmClassModifier.java:49)
	... 21 more
java.lang.reflect.InvocationTargetException
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:48)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:600)
	at jp.co.dgic.testing.common.DJUnitClassLoader.getModifiedClass(DJUnitClassLoader.java:106)
	at jp.co.dgic.testing.common.DJUnitClassLoader.findClass(DJUnitClassLoader.java:56)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:653)
	at jp.co.dgic.testing.common.DJUnitClassLoader.loadClass(DJUnitClassLoader.java:45)
	at jp.co.dgic.testing.common.DJUnitEclipseClassLoader.loadClass(DJUnitEclipseClassLoader.java:59)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:619)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.loadClass(RemoteTestRunner.java:683)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.loadClasses(RemoteTestRunner.java:425)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:445)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:673)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:386)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:196)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:48)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:600)
	at jp.co.dgic.eclipse.jdt.internal.junit.runner.DJUnitRunner.main(DJUnitRunner.java:49)
Caused by: java.io.IOException: Class not found
	at org.objectweb.asm.ClassReader.a(Unknown Source)
	at org.objectweb.asm.ClassReader.(Unknown Source)
	at org.objectweb.asm.ClassReader.(Unknown Source)
	at jp.co.dgic.testing.common.AsmClassModifier.getModifiedClass(AsmClassModifier.java:49)
	... 21 more
java.lang.Error: djUnit class load error (Class : co.jp.*******************************************.java)
	at jp.co.dgic.testing.common.DJUnitClassLoader.findClass(DJUnitClassLoader.java:59)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:653)
	at jp.co.dgic.testing.common.DJUnitClassLoader.loadClass(DJUnitClassLoader.java:45)
	at jp.co.dgic.testing.common.DJUnitEclipseClassLoader.loadClass(DJUnitEclipseClassLoader.java:59)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:619)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.loadClass(RemoteTestRunner.java:683)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.loadClasses(RemoteTestRunner.java:425)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:445)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:673)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:386)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:196)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:48)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:600)
	at jp.co.dgic.eclipse.jdt.internal.junit.runner.DJUnitRunner.main(DJUnitRunner.java:49)

发生原因：找到class相应路径下，对应的class文件没生成，有可能是某些class有错，导致没有完成编译，在clean后，经常发生。

解决方法：properties属性里的 java   compiler-->　building　-->　ビルド･パスの問題　-->　

                  abort   build   when   build   path     errors   occur / ビルド・パス・エラーの発生時にビルドを中断　 前面的勾去掉