Bruce Phillips created WW-3826:
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Summary: Unit Testing A Portlet Action Using StrutsTestCase Causes
A NullPointerException
Key: WW-3826
URL: https://issues.apache.org/jira/browse/WW-3826
Project: Struts 2
Issue Type: Bug
Components: Plugin - Portlet
Affects Versions: 2.3.4
Environment: JUnit 4.8.2 - Struts version 2.3.4
Reporter: Bruce Phillips
When running a unit test of a Struts portlet Action using StrutsTestCase the
test causes an error -
java.lang.NullPointerException at
org.apache.struts2.portlet.interceptor.PortletStateInterceptor.intercept(PortletStateInterceptor.java:52)
(see below for complete stack trace)
The same test when run with Struts portlet plugin version 2.2.1 passes.
You can download an example application here:
http://www.brucephillips.name/struts/Struts2CRUDPortletExample_Finish.zip.
Unzip the example. In the project's root folder run mvn -e clean test. The
test will pass.
Modify pom.xml in the project to set the version number of Struts to 2.3.4.
Remove the dependency on javaassist. Save the pom.xml
In the project's root folder run mvn -e clean test. The test will error. View
the test report in target/surfire-reports.
-------------------------------------------------------------------------------
Test set: com.struts2.tutorial.action.ListEmployeeActionTest
-------------------------------------------------------------------------------
Tests run: 1, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 1.185 sec <<<
FAILURE!
testExecute(com.struts2.tutorial.action.ListEmployeeActionTest) Time elapsed:
0.998 sec <<< ERROR!
java.lang.NullPointerException
at
org.apache.struts2.portlet.interceptor.PortletStateInterceptor.intercept(PortletStateInterceptor.java:52)
at
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:249)
at
org.apache.struts2.impl.StrutsActionProxy.execute(StrutsActionProxy.java:54)
at
com.struts2.tutorial.action.ListEmployeeActionTest.testExecute(ListEmployeeActionTest.java:24)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:601)
at junit.framework.TestCase.runTest(TestCase.java:168)
at junit.framework.TestCase.runBare(TestCase.java:134)
at junit.framework.TestResult$1.protect(TestResult.java:110)
at junit.framework.TestResult.runProtected(TestResult.java:128)
at junit.framework.TestResult.run(TestResult.java:113)
at junit.framework.TestCase.run(TestCase.java:124)
at junit.framework.TestSuite.runTest(TestSuite.java:243)
at junit.framework.TestSuite.run(TestSuite.java:238)
at
org.junit.internal.runners.JUnit38ClassRunner.run(JUnit38ClassRunner.java:83)
at
org.apache.maven.surefire.junit4.JUnit4TestSet.execute(JUnit4TestSet.java:53)
at
org.apache.maven.surefire.junit4.JUnit4Provider.executeTestSet(JUnit4Provider.java:123)
at
org.apache.maven.surefire.junit4.JUnit4Provider.invoke(JUnit4Provider.java:104)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:601)
at
org.apache.maven.surefire.util.ReflectionUtils.invokeMethodWithArray(ReflectionUtils.java:164)
at
org.apache.maven.surefire.booter.ProviderFactory$ProviderProxy.invoke(ProviderFactory.java:110)
at
org.apache.maven.surefire.booter.SurefireStarter.invokeProvider(SurefireStarter.java:175)
at
org.apache.maven.surefire.booter.SurefireStarter.runSuitesInProcessWhenForked(SurefireStarter.java:107)
at
org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:68)
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