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Following message occurs in message.log: java.lang.NullPointerException at org.netbeans.modules.j2ee.jboss4.config.EjbDeploymentConfiguration.<init>(EjbDeploymentConfiguration.java:99) at org.netbeans.modules.j2ee.jboss4.JBDeploymentManager.createConfiguration(JBDeploymentManager.java:179) at org.netbeans.modules.j2ee.deployment.config.ConfigSupportImpl.getDeploymentConfiguration(ConfigSupportImpl.java:430) at org.netbeans.modules.j2ee.deployment.config.ConfigSupportImpl.ensureConfigurationReady(ConfigSupportImpl.java:211) at org.netbeans.modules.j2ee.ejbjarproject.EjbJarProject$ProjectOpenedHookImpl.projectOpened(EjbJarProject.java:802) at org.netbeans.spi.project.ui.ProjectOpenedHook$1.projectOpened(ProjectOpenedHook.java:56) at org.netbeans.modules.project.ui.OpenProjectList.notifyOpened(OpenProjectList.java:581) at org.netbeans.modules.project.ui.OpenProjectList.getDefault(OpenProjectList.java:150) at org.netbeans.modules.project.ui.OpenProjectsTrampolineImpl.getOpenProjectsAPI(OpenProjectsTrampolineImpl.java:45) at org.netbeans.api.project.ui.OpenProjects.getOpenProjects(OpenProjects.java:74) at org.netbeans.modules.project.libraries.LibrariesModule.restored(LibrariesModule.java:41) at org.netbeans.core.startup.NbInstaller.loadCode(NbInstaller.java:366) at org.netbeans.core.startup.NbInstaller.load(NbInstaller.java:282) at org.netbeans.ModuleManager.enable(ModuleManager.java:904) at org.netbeans.core.startup.ModuleList.installNew(ModuleList.java:383) at org.netbeans.core.startup.ModuleList.trigger(ModuleList.java:317) at org.netbeans.core.startup.ModuleSystem.restore(ModuleSystem.java:250) at org.netbeans.core.startup.Main.getModuleSystem(Main.java:212) at org.netbeans.core.startup.Main.start(Main.java:383) at org.netbeans.core.startup.TopThreadGroup.run(TopThreadGroup.java:96) [catch] at java.lang.Thread.run(Thread.java:595) Install steps: Installed NB5.5. Inherited projects from previous NB5.0 version. JBoss 4.0.4 used and was previously configured as a server for NB5.0.
Fixed - see the issue 91991. *** This issue has been marked as a duplicate of 91991 ***