java.lang.NullPointerException
   at org.netbeans.modules.masterfs.filebasedfs.fileobjects.FolderObj.getFileObject(FolderObj.java:126)
   at org.netbeans.modules.project.ant.AntBasedProjectFactorySingleton.loadProject(AntBasedProjectFactorySingleton.java:229)
   at org.netbeans.api.project.ProjectManager.createProject(ProjectManager.java:365)
   at org.netbeans.api.project.ProjectManager.access$300(ProjectManager.java:85)
   at org.netbeans.api.project.ProjectManager$2.run(ProjectManager.java:286)
   at org.netbeans.api.project.ProjectManager$2.run(ProjectManager.java:233)
   at org.openide.util.Mutex.readAccess(Mutex.java:330)
   at org.netbeans.api.project.ProjectManager.findProject(ProjectManager.java:233)
   at org.netbeans.modules.projectapi.SimpleFileOwnerQueryImplementation.getOwner(SimpleFileOwnerQueryImplementation.java:127)
   at org.netbeans.modules.projectapi.SimpleFileOwnerQueryImplementation.getOwner(SimpleFileOwnerQueryImplementation.java:93)
   at org.netbeans.api.project.FileOwnerQuery.getOwner(FileOwnerQuery.java:150)
   at org.netbeans.modules.java.project.ProjectSourceForBinaryQuery.findSourceRoots2(ProjectSourceForBinaryQuery.java:79)
   at org.netbeans.api.java.queries.SourceForBinaryQuery.findSourceRoots2(SourceForBinaryQuery.java:126)
   at org.netbeans.modules.parsing.impl.indexing.PathRegistry.createResources(PathRegistry.java:653)
   at org.netbeans.modules.parsing.impl.indexing.PathRegistry.getSources(PathRegistry.java:256)
   at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$RootsWork.getDone(RepositoryUpdater.java:3960)
   at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Work.doTheWork(RepositoryUpdater.java:2838)
   at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Task._run(RepositoryUpdater.java:5003)
   at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Task.access$4800(RepositoryUpdater.java:4715)
   at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Task$2.run(RepositoryUpdater.java:4947)
   at org.netbeans.modules.parsing.impl.RunWhenScanFinishedSupport.performScan(RunWhenScanFinishedSupport.java:90)
   at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Task.run(RepositoryUpdater.java:4943)
   at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441)
   at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
   at java.util.concurrent.FutureTask.run(FutureTask.java:138)
   at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1411)
   at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:1991)