I am also getting the same error.
i tried this earlier also and that time it didn't gave me any error, but
this time i am getting this.

On Mon, Jan 14, 2013 at 6:00 PM, Zhiwei Liu <[email protected]> wrote:

> hello,
>
> I'm a new comer for Jenkins and i want to develop a plugin, so i
> followed the step in the Plugin tutorial. i used the online skeleton
> generator and run "mvn package", then it download many jars. but it
> failed to pass the tests. following is the error.
>
> i have no much experience on web development. does someone give me some
> hints?
> Thanks. Sorry for the bothering.
>
> (my pc is xp)
>
> ====
>
> Tests run: 5, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 38.891 sec
> <<< F
> AILURE!
>
> Results :
>
> Tests in error:
>
> org.jvnet.hudson.test.JellyTestSuiteBuilder$JellyTestSuite(org.jvnet.hudson.te
> st.junit.FailedTest): class "org.apache.commons.collections.Transformer"'s
> signe
> r information does not match signer information of other classes in the
> same pac
> kage
>
> Tests run: 5, Failures: 0, Errors: 1, Skipped: 0
>
> [INFO]
> ------------------------------------------------------------------------
> [INFO] BUILD FAILURE
> [INFO]
> ------------------------------------------------------------------------
> [INFO] Total time: 48.765s
> [INFO] Finished at: Mon Jan 14 19:58:56 GMT+08:00 2013
> [INFO] Final Memory: 11M/22M
> [INFO]
> ------------------------------------------------------------------------
> [ERROR] Failed to execute goal
> org.apache.maven.plugins:maven-surefire-plugin:2.
> 9:test (default-test) on project testngpp: There are test failures.
> [ERROR]
> [ERROR] Please refer to D:\GitHub\testngpp\target\surefire-reports for
> the individual test results.
> [ERROR] -> [Help 1]
> [ERROR]
> [ERROR] To see the full stack trace of the errors, re-run Maven with the
> -e swit
> ch.
> [ERROR] Re-run Maven using the -X switch to enable full debug logging.
> [ERROR]
> [ERROR] For more information about the errors and possible solutions,
> please rea
> d the following articles:
> [ERROR] [Help 1]
> http://cwiki.apache.org/confluence/display/MAVEN/MojoFailureExc
> eption
>
> === D:\GitHub\testngpp\target\surefire-reports
>
> -------------------------------------------------------------------------------
> Test set: InjectedTest
>
> -------------------------------------------------------------------------------
> Tests run: 5, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 38.891
> sec <<< FAILURE!
>
> org.jvnet.hudson.test.JellyTestSuiteBuilder$JellyTestSuite(org.jvnet.hudson.test.junit.FailedTest)
>  Time elapsed: 0.016 sec  <<< ERROR!
> ======= EXCEPTION START ========
> Exception class=[java.lang.SecurityException]
> com.gargoylesoftware.htmlunit.ScriptException: class
> "org.apache.commons.collections.Transformer"'s signer information does
> not match signer information of other classes in the same package
>         at
> com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine$1.run(JavaScriptEngine.java:134)
>         at
> net.sourceforge.htmlunit.corejs.javascript.Context.call(Context.java:529)
>         at
> net.sourceforge.htmlunit.corejs.javascript.ContextFactory.call(ContextFactory.java:536)
>         at
> com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine.initialize(JavaScriptEngine.java:141)
>         at
> com.gargoylesoftware.htmlunit.WebClient.initialize(WebClient.java:1132)
>         at
> com.gargoylesoftware.htmlunit.WebWindowImpl.setEnclosedPage(WebWindowImpl.java:103)
>         at
> com.gargoylesoftware.htmlunit.html.HTMLParser.parse(HTMLParser.java:325)
>         at
> com.gargoylesoftware.htmlunit.html.HTMLParser.parseHtml(HTMLParser.java:304)
>         at
> com.gargoylesoftware.htmlunit.DefaultPageCreator.createHtmlPage(DefaultPageCreator.java:134)
>         at
> com.gargoylesoftware.htmlunit.DefaultPageCreator.createPage(DefaultPageCreator.java:101)
>         at
> org.jvnet.hudson.test.HudsonPageCreator.createPage(HudsonPageCreator.java:46)
>         at
> com.gargoylesoftware.htmlunit.WebClient.loadWebResponseInto(WebClient.java:449)
>         at
> com.gargoylesoftware.htmlunit.WebClient.getPage(WebClient.java:332)
>         at
> com.gargoylesoftware.htmlunit.WebClient.getPage(WebClient.java:389)
>         at
> com.gargoylesoftware.htmlunit.WebClient.getPage(WebClient.java:374)
>         at
> org.jvnet.hudson.test.HudsonTestCase$WebClient.getPage(HudsonTestCase.java:1768)
>         at
> org.jvnet.hudson.test.HudsonTestCase.tearDown(HudsonTestCase.java:363)
>         at
> org.jvnet.hudson.test.JellyTestSuiteBuilder$JellyTestSuite.tearDown(JellyTestSuiteBuilder.java:138)
>         at org.jvnet.hudson.test.junit.GroupedTest.run(GroupedTest.java:50)
>         at junit.framework.TestSuite.runTest(TestSuite.java:243)
>         at junit.framework.TestSuite.run(TestSuite.java:238)
>         at
> org.junit.internal.runners.JUnit38ClassRunner.run(JUnit38ClassRunner.java:83)
>         at
> org.apache.maven.surefire.junit4.JUnit4TestSet.execute(JUnit4TestSet.java:53)
>         at
> org.apache.maven.surefire.junit4.JUnit4Provider.executeTestSet(JUnit4Provider.java:123)
>         at
> org.apache.maven.surefire.junit4.JUnit4Provider.invoke(JUnit4Provider.java:104)
>         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>         at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
>         at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
>         at java.lang.reflect.Method.invoke(Method.java:597)
>         at
> org.apache.maven.surefire.util.ReflectionUtils.invokeMethodWithArray(ReflectionUtils.java:164)
>         at
> org.apache.maven.surefire.booter.ProviderFactory$ProviderProxy.invoke(ProviderFactory.java:110)
>         at
> org.apache.maven.surefire.booter.SurefireStarter.invokeProvider(SurefireStarter.java:172)
>         at
> org.apache.maven.surefire.booter.SurefireStarter.runSuitesInProcessWhenForked(SurefireStarter.java:104)
>         at
> org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:70)
> Caused by: 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:769)
>         at java.lang.ClassLoader.preDefineClass(ClassLoader.java:484)
>         at java.lang.ClassLoader.defineClass(ClassLoader.java:610)
>         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$1.run(URLClassLoader.java:195)
>         at java.security.AccessController.doPrivileged(Native Method)
>         at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
>         at java.lang.ClassLoader.loadClass(ClassLoader.java:303)
>         at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
>         at java.lang.ClassLoader.loadClass(ClassLoader.java:248)
>         at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:316)
>         at
> com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine.init(JavaScriptEngine.java:155)
>         at
> com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine.access$000(JavaScriptEngine.java:68)
>         at
> com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine$1.run(JavaScriptEngine.java:130)
>         ... 33 more
> Enclosed exception:
> 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:769)
>         at java.lang.ClassLoader.preDefineClass(ClassLoader.java:484)
>         at java.lang.ClassLoader.defineClass(ClassLoader.java:610)
>         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$1.run(URLClassLoader.java:195)
>         at java.security.AccessController.doPrivileged(Native Method)
>         at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
>         at java.lang.ClassLoader.loadClass(ClassLoader.java:303)
>         at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
>         at java.lang.ClassLoader.loadClass(ClassLoader.java:248)
>         at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:316)
>         at
> com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine.init(JavaScriptEngine.java:155)
>         at
> com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine.access$000(JavaScriptEngine.java:68)
>         at
> com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine$1.run(JavaScriptEngine.java:130)
>         at
> net.sourceforge.htmlunit.corejs.javascript.Context.call(Context.java:529)
>         at
> net.sourceforge.htmlunit.corejs.javascript.ContextFactory.call(ContextFactory.java:536)
>         at
> com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine.initialize(JavaScriptEngine.java:141)
>         at
> com.gargoylesoftware.htmlunit.WebClient.initialize(WebClient.java:1132)
>         at
> com.gargoylesoftware.htmlunit.WebWindowImpl.setEnclosedPage(WebWindowImpl.java:103)
>         at
> com.gargoylesoftware.htmlunit.html.HTMLParser.parse(HTMLParser.java:325)
>         at
> com.gargoylesoftware.htmlunit.html.HTMLParser.parseHtml(HTMLParser.java:304)
>         at
> com.gargoylesoftware.htmlunit.DefaultPageCreator.createHtmlPage(DefaultPageCreator.java:134)
>         at
> com.gargoylesoftware.htmlunit.DefaultPageCreator.createPage(DefaultPageCreator.java:101)
>         at
> org.jvnet.hudson.test.HudsonPageCreator.createPage(HudsonPageCreator.java:46)
>         at
> com.gargoylesoftware.htmlunit.WebClient.loadWebResponseInto(WebClient.java:449)
>         at
> com.gargoylesoftware.htmlunit.WebClient.getPage(WebClient.java:332)
>         at
> com.gargoylesoftware.htmlunit.WebClient.getPage(WebClient.java:389)
>         at
> com.gargoylesoftware.htmlunit.WebClient.getPage(WebClient.java:374)
>         at
> org.jvnet.hudson.test.HudsonTestCase$WebClient.getPage(HudsonTestCase.java:1768)
>         at
> org.jvnet.hudson.test.HudsonTestCase.tearDown(HudsonTestCase.java:363)
>         at
> org.jvnet.hudson.test.JellyTestSuiteBuilder$JellyTestSuite.tearDown(JellyTestSuiteBuilder.java:138)
>         at org.jvnet.hudson.test.junit.GroupedTest.run(GroupedTest.java:50)
>         at junit.framework.TestSuite.runTest(TestSuite.java:243)
>         at junit.framework.TestSuite.run(TestSuite.java:238)
>         at
> org.junit.internal.runners.JUnit38ClassRunner.run(JUnit38ClassRunner.java:83)
>         at
> org.apache.maven.surefire.junit4.JUnit4TestSet.execute(JUnit4TestSet.java:53)
>         at
> org.apache.maven.surefire.junit4.JUnit4Provider.executeTestSet(JUnit4Provider.java:123)
>         at
> org.apache.maven.surefire.junit4.JUnit4Provider.invoke(JUnit4Provider.java:104)
>         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>         at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
>         at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
>         at java.lang.reflect.Method.invoke(Method.java:597)
>         at
> org.apache.maven.surefire.util.ReflectionUtils.invokeMethodWithArray(ReflectionUtils.java:164)
>         at
> org.apache.maven.surefire.booter.ProviderFactory$ProviderProxy.invoke(ProviderFactory.java:110)
>         at
> org.apache.maven.surefire.booter.SurefireStarter.invokeProvider(SurefireStarter.java:172)
>         at
> org.apache.maven.surefire.booter.SurefireStarter.runSuitesInProcessWhenForked(SurefireStarter.java:104)
>         at
> org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:70)
> ======= EXCEPTION END ========
>
> BR
> Thanks.
>



-- 

Thanks and Regards:
Punit Jain

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