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This bug was originally marked as duplicate of bug 253636, that is already resolved. This bug is still valid, so this seems to be another bug, but it might be related. Build: NetBeans IDE 8.1 Beta (Build 201507302201) VM: Java HotSpot(TM) 64-Bit Server VM, 25.45-b02, Java(TM) SE Runtime Environment, 1.8.0_45-b14 OS: Windows 8 User Comments: mienamoo: I was busy testing this: http://services.netbeans.org/synergy/client/app/#/case/1338/suite/1079/v/1 1. Download sample file for the test suite (JUnitSanity.zip) 2. Unzip and open project in IDE. 3. Resolve missing dependency 4. Right-click on junitsanity, choose Tools and then Create/Update Tests 5. Exception occurs wshackleAtGmail: Attempting to create update unit tests. This occured in step 1 of the "Test files" test specification at: http://services.netbeans.org/synergy/client/app/#/assignment/1133/v/1 Stacktrace: java.lang.NullPointerException at org.netbeans.modules.gsf.testrunner.ui.CommonTestsCfgOfCreate.updateClassName(CommonTestsCfgOfCreate.java:555) at org.netbeans.modules.gsf.testrunner.ui.CommonTestsCfgOfCreate.fireFrameworkChanged(CommonTestsCfgOfCreate.java:535) at org.netbeans.modules.gsf.testrunner.ui.CommonTestsCfgOfCreate.addTestingFrameworks(CommonTestsCfgOfCreate.java:602) at org.netbeans.modules.gsf.testrunner.ui.api.TestCreatorPanelDisplayer.displayPanel(TestCreatorPanelDisplayer.java:105) at org.netbeans.modules.gsf.testrunner.ui.TestCreatorAction.performAction(TestCreatorAction.java:129) at org.openide.util.actions.NodeAction$DelegateAction$1.run(NodeAction.java:586)
Created attachment 155121 [details] stacktrace
From all the stacktraces in exception reports it seems that the build used does not contain the fix from http://hg.netbeans.org/main-silver/rev/2ede7e87355a. Please try a latest build and reopen if it still happens for you. Thank you