java.lang.SecurityException

junit.framework.JUnit4TestCaseFacade"'s signer information does not match

2009-02-08 20:40

java.lang.SecurityException: class "junit.framework.JUnit4TestCaseFacade"'s signer information does not match signer information of other classes in the same package
at java.lang.ClassLoader.checkCerts(Unknown Source)
at java.lang.ClassLoader.preDefineClass(Unknown Source)
at java.lang.ClassLoader.defineClass(Unknown Source)
at java.security.SecureClassLoader.defineClass(Unknown Source)
at java.net.URLClassLoader.defineClass(Unknown Source)
at java.net.URLClassLoader.access$100(Unknown Source)
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClassInternal(Unknown Source)
at org.junit.internal.runners.OldTestClassRunner$OldTestClassAdaptingListener.asDescription(OldTestClassRunner.java:41)
at org.junit.internal.runners.OldTestClassRunner$OldTestClassAdaptingListener.startTest(OldTestClassRunner.java:31)
at junit.framework.TestResult.startTest(TestResult.java:151)
at junit.framework.TestResult.run(TestResult.java:103)
at junit.framework.TestCase.run(TestCase.java:118)
at junit.framework.TestSuite.runTest(TestSuite.java:208)
at junit.framework.TestSuite.run(TestSuite.java:203)
at org.junit.internal.runners.OldTestClassRunner.run(OldTestClassRunner.java:76)
at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:45)
at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:460)
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)

解决方案：run as---->run configrations--->test runner选择junit3

转载的。（不过我自己的换成junit3的，并可以工作了，⊙﹏⊙b汗！）

 

一直跑的好好的单元测试，今天突然不能运行了，问题如下：

java.lang.SecurityException: class "org.junit.internal.runners.JUnit4ClassRunner"'s signer information does not match signer information of other classes in the same package
 at java.lang.ClassLoader.checkCerts(ClassLoader.java:775)
 at java.lang.ClassLoader.preDefineClass(ClassLoader.java:487)
 at java.lang.ClassLoader.defineClass(ClassLoader.java:614)
 at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:124)

 

呵呵，原来是多个Junit4ClassRunner都签名信息不一样，应该是项目启动的时候加载了多个Junit包，找到看下，果然是maven项目加载了junit,eclipse本身又加载了一次。

 

（:) 诡异问题多是由加载包冲突或版本问题引起的，不用怀疑程序。）