Searched on Google with the first line of a JAVA stack trace?

We can recommend more relevant solutions and speed up debugging when you paste your entire stack trace with the exception message. Try a sample exception.

Recommended solutions based on your search

Solutions on the web

via strutstestcase by nobody
, 1 year ago
Error running action.perform(): class java.lang.NullPointerException - null
via Google Groups by Unknown author, 9 months ago
via Stack Overflow by user3262566
, 2 years ago
Class Test has no public constructor TestCase(String name) or TestCase()
via strutstestcase by *anonymous
, 1 year ago
Error running action.perform(): class java.lang.NullPointerException - null
via java-forums.org by Unknown author, 1 year ago
Need to specify class name in environment or system property, or as an applet parameter, or in an application resource file: java.naming.factory.initial
via knowcoding.com by Unknown author, 2 years ago
Need to specify class name in environment or system property, or as an applet parameter, or in an application resource file: java.naming.factory.initial
junit.framework.AssertionFailedError: Error running action.perform(): class java.lang.NullPointerException - null 	at junit.framework.Assert.fail(Assert.java:47)	at servletunit.struts.MockStrutsTestCase.actionPerform(MockStrutsTestCase.java:339)	at com.ibm.crl.cfi.web.task.test.TestShowUnitAction.testSuccessfulShowUnit(TestShowUnitAction.java:27)	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)	at java.lang.reflect.Method.invoke(Unknown Source)	at junit.framework.TestCase.runTest(TestCase.java:154)	at junit.framework.TestCase.runBare(TestCase.java:127)	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:118)	at junit.framework.TestSuite.runTest(TestSuite.java:208)	at junit.framework.TestSuite.run(TestSuite.java:203)	at org.eclipse.jdt.internal.junit.runner.junit3.JUnit3TestReference.run(JUnit3TestReference.java:128)	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)