java.lang.IllegalArgumentException: Called DataObject.find on null
   at org.openide.loaders.DataObject.find(DataObject.java:495)
   at org.netbeans.modules.j2ee.jboss4.config.CarDeploymentConfiguration.<init>(CarDeploymentConfiguration.java:94)
   at org.netbeans.modules.j2ee.jboss4.config.JBModuleConfigurationFactory.create(JBModuleConfigurationFactory.java:69)
   at org.netbeans.modules.j2ee.deployment.config.ConfigSupportImpl$1.run(ConfigSupportImpl.java:734)
   at org.netbeans.modules.j2ee.deployment.config.ConfigSupportImpl$1.run(ConfigSupportImpl.java:718)
   at org.openide.util.Mutex.readAccess(Mutex.java:288)
   at org.netbeans.modules.j2ee.deployment.config.ConfigSupportImpl.getModuleConfiguration(ConfigSupportImpl.java:718)
   at org.netbeans.modules.j2ee.deployment.config.ConfigSupportImpl.getDatasources(ConfigSupportImpl.java:343)
   at org.netbeans.modules.j2ee.common.ui.BrokenDatasourceSupport.getBrokenDatasources(BrokenDatasourceSupport.java:156)
   at org.netbeans.modules.j2ee.common.project.ui.AbstractLogicalViewProvider.hasBrokenDataSource(AbstractLogicalViewProvider.java:780)
   at org.netbeans.modules.j2ee.common.project.ui.AbstractLogicalViewProvider.access$1200(AbstractLogicalViewProvider.java:117)
   at org.netbeans.modules.j2ee.common.project.ui.AbstractLogicalViewProvider$4.run(AbstractLogicalViewProvider.java:321)
   at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1418)
   at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:1957)