java.lang.AssertionError: Resource directory can't be null
                at org.netbeans.modules.j2ee.jboss4.config.ds.DatasourceSupport.<init>(DatasourceSupport.java:92)
                at org.netbeans.modules.j2ee.jboss4.config.JBDeploymentConfiguration.getDatasourceSupport(JBDeploymentConfiguration.java:101)
                at org.netbeans.modules.j2ee.jboss4.config.JBDeploymentConfiguration.getDatasources(JBDeploymentConfiguration.java:107)
                at org.netbeans.modules.j2ee.deployment.config.ConfigSupportImpl.getDatasources(ConfigSupportImpl.java:332)
                at org.netbeans.modules.j2ee.deployment.devmodules.spi.J2eeModuleProvider.getModuleDatasources(J2eeModuleProvider.java:183)
                at org.netbeans.modules.j2ee.common.ui.BrokenDatasourceSupport.getBrokenDatasources(BrokenDatasourceSupport.java:153)
                at org.netbeans.modules.web.project.ui.WebLogicalViewProvider$WebLogicalViewRootNode$BrokenDatasourceAction.doCheckMissingDatabaseConnection(WebLogicalViewProvider.java:750)
                at org.netbeans.modules.web.project.ui.WebLogicalViewProvider$WebLogicalViewRootNode$BrokenDatasourceAction.run(WebLogicalViewProvider.java:739)
                at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:561)
[catch] at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:986)