我老是遇到jar包重复的异常:
java.lang.SecurityException: class "org.apache.commons.collections.Transformer"'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)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:260)
at java.net.URLClassLoader.access$000(URLClassLoader.java:56)
at java.net.URLClassLoader$1.run(URLClassLoader.java:195)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:276)
at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)
at servletunit.struts.MockStrutsTestCase.setRequestPathInfo(MockStrutsTestCase.java:378)
at servletunit.struts.MockStrutsTestCase.setRequestPathInfo(MockStrutsTestCase.java:355)
at action.TestShowAction.testSuccess(TestShowAction.java:10)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at junit.framework.TestCase.runTest(TestCase.java:164)
at junit.framework.TestCase.runBare(TestCase.java:130)
at junit.framework.TestResult$1.protect(TestResult.java:106)
at junit.framework.TestResult.runProtected(TestResult.java:124)
at junit.framework.TestResult.run(TestResult.java:109)
at junit.framework.TestCase.run(TestCase.java:120)
at junit.framework.TestSuite.runTest(TestSuite.java:230)
at junit.framework.TestSuite.run(TestSuite.java:225)
at org.eclipse.jdt.internal.junit.runner.junit3.JUnit3TestReference.run(JUnit3TestReference.java:130)
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)
就比如说在struts1.2中测试Action,要用到commons-collections-2.1.1.jar 包,我导入了hibernate的jar包(myeclipse自带的),它本身含有commons-collections-2.1.1.jar 包,我就没再单独导入。一运行test类,就报上面的异常,说是jar包重复,但实际上我就hibernate里面导入了这个包,不存在重复的问题。如果重新建个web project,不导入hibernate的jar包,只导commons-collections-2.1.1.jar 包,就能正常运行。(测试类那些的都没问题)
还请各位大侠们指导下,我到底是哪里出错了!非常感谢!!!
弄了好久都没弄出来,头都大了!
java.lang.SecurityException: class "org.apache.commons.collections.Transformer"'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)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:260)
at java.net.URLClassLoader.access$000(URLClassLoader.java:56)
at java.net.URLClassLoader$1.run(URLClassLoader.java:195)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:276)
at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)
at servletunit.struts.MockStrutsTestCase.setRequestPathInfo(MockStrutsTestCase.java:378)
at servletunit.struts.MockStrutsTestCase.setRequestPathInfo(MockStrutsTestCase.java:355)
at action.TestShowAction.testSuccess(TestShowAction.java:10)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at junit.framework.TestCase.runTest(TestCase.java:164)
at junit.framework.TestCase.runBare(TestCase.java:130)
at junit.framework.TestResult$1.protect(TestResult.java:106)
at junit.framework.TestResult.runProtected(TestResult.java:124)
at junit.framework.TestResult.run(TestResult.java:109)
at junit.framework.TestCase.run(TestCase.java:120)
at junit.framework.TestSuite.runTest(TestSuite.java:230)
at junit.framework.TestSuite.run(TestSuite.java:225)
at org.eclipse.jdt.internal.junit.runner.junit3.JUnit3TestReference.run(JUnit3TestReference.java:130)
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)
就比如说在struts1.2中测试Action,要用到commons-collections-2.1.1.jar 包,我导入了hibernate的jar包(myeclipse自带的),它本身含有commons-collections-2.1.1.jar 包,我就没再单独导入。一运行test类,就报上面的异常,说是jar包重复,但实际上我就hibernate里面导入了这个包,不存在重复的问题。如果重新建个web project,不导入hibernate的jar包,只导commons-collections-2.1.1.jar 包,就能正常运行。(测试类那些的都没问题)
还请各位大侠们指导下,我到底是哪里出错了!非常感谢!!!
弄了好久都没弄出来,头都大了!
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把183K的commons-beanutils-1.7.0.jar包替换掉191K的commons-beanutils-1.7.0.jar包就行了。lz试试看!
应该和我遇到的问题是一样的!
是不能正常工作的。
楼主你可以先去tomcat下的WEB-INF/lib目录下,把所有jar文件,拷走,把里面
collections和beanutils给删除了(等下添加用)
,再把工程里面添加的myeclpse的hibernate的jar包给移除(不删除的话,等下myeclpse的hibernate的jar包还会存在)
,再把刚才拷出来的jar添加到工程的lib目录下,把工程移除出去,重新部署下(确保工程重新发布,没有使用以前的jar包)
,然后去spring下的lib/jakarta-commons下的collections和beanutils给拷过来,spring下的这2个绝对没什么问题