java.lang.NullPointerException at org.netbeans.api.project.ProjectUtils$BasicInformation.getDisplayName(ProjectUtils.java:244) at org.netbeans.api.project.ProjectUtils$AnnotateIconProxyProjectInformation.getDisplayName(ProjectUtils.java:344) at org.netbeans.modules.project.ui.problems.BrokenReferencesImpl.showCustomizer(BrokenReferencesImpl.java:183) at org.netbeans.api.project.ui.ProjectProblems.showCustomizer(ProjectProblems.java:108) at org.netbeans.spi.java.project.support.ui.BrokenReferencesSupport.showAlert(BrokenReferencesSupport.java:167) at org.netbeans.modules.scala.project.J2SEProject$ProjectOpenedHookImpl.projectOpened(J2SEProject.java:639) at org.netbeans.spi.project.ui.ProjectOpenedHook$1.projectOpened(ProjectOpenedHook.java:84) at org.netbeans.spi.project.ui.support.UILookupMergerSupport$OpenHookImpl.projectOpened(UILookupMergerSupport.java:235) at org.netbeans.spi.project.ui.ProjectOpenedHook$1.projectOpened(ProjectOpenedHook.java:84) at org.netbeans.modules.project.ui.OpenProjectList.notifyOpened(OpenProjectList.java:1216) at org.netbeans.modules.project.ui.OpenProjectList.doOpenProject(OpenProjectList.java:1297) at org.netbeans.modules.project.ui.OpenProjectList.open(OpenProjectList.java:789) at org.netbeans.modules.project.ui.OpenProjectList$5.run(OpenProjectList.java:657) at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1454) at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2036)