java.lang.NullPointerException: The delegate parameter cannot be null
   at org.openide.util.Parameters.notNull(Parameters.java:89)
   at org.netbeans.modules.j2ee.deployment.plugins.spi.support.ProxyDeploymentFactory.getDelegate(ProxyDeploymentFactory.java:127)
   at org.netbeans.modules.j2ee.deployment.plugins.spi.support.ProxyDeploymentFactory.getDisplayName(ProxyDeploymentFactory.java:106)
   at org.netbeans.modules.j2ee.deployment.impl.Server.getDisplayName(Server.java:195)
   at org.netbeans.modules.j2ee.deployment.devmodules.api.Deployment.getServerDisplayName(Deployment.java:630)
   at org.netbeans.modules.maven.j2ee.utils.MavenProjectSupport.createMissingServerReport(MavenProjectSupport.java:185)
   at org.netbeans.modules.maven.j2ee.utils.MavenProjectSupport.changeServer(MavenProjectSupport.java:121)
   at org.netbeans.modules.maven.j2ee.ProjectHookImpl.projectOpened(ProjectHookImpl.java:82)
   at org.netbeans.spi.project.ui.ProjectOpenedHook$1.projectOpened(ProjectOpenedHook.java:84)
   at org.netbeans.spi.project.ui.support.UILookupMergerSupport$OpenHookImpl.projectOpened(UILookupMergerSupport.java:200)
   at org.netbeans.spi.project.ui.ProjectOpenedHook$1.projectOpened(ProjectOpenedHook.java:84)
   at org.netbeans.spi.project.ui.support.UILookupMergerSupport$OpenHookImpl.projectOpened(UILookupMergerSupport.java:200)
   at org.netbeans.spi.project.ui.ProjectOpenedHook$1.projectOpened(ProjectOpenedHook.java:84)
   at org.netbeans.modules.project.ui.OpenProjectList.notifyOpened(OpenProjectList.java:1138)
   at org.netbeans.modules.project.ui.OpenProjectList.doOpenProject(OpenProjectList.java:1219)
   at org.netbeans.modules.project.ui.OpenProjectList.open(OpenProjectList.java:716)
   at org.netbeans.modules.project.ui.OpenProjectList$4.run(OpenProjectList.java:584)
   at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1452)
   at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2032)