java.lang.OutOfMemoryError: Java heap space
   at java.util.prefs.AbstractPreferences.addPreferenceChangeListener(AbstractPreferences.java:1039)
   at org.netbeans.modules.masterfs.GlobalVisibilityQueryImpl.getIgnoredFiles(GlobalVisibilityQueryImpl.java:132)
   at org.netbeans.modules.masterfs.GlobalVisibilityQueryImpl.getIgnoreFilesPattern(GlobalVisibilityQueryImpl.java:123)
   at org.netbeans.modules.masterfs.GlobalVisibilityQueryImpl.isVisible(GlobalVisibilityQueryImpl.java:101)
   at org.netbeans.modules.masterfs.GlobalVisibilityQueryImpl.isVisible(GlobalVisibilityQueryImpl.java:92)
   at org.netbeans.api.queries.VisibilityQuery.isVisible(VisibilityQuery.java:104)
   at org.netbeans.modules.parsing.impl.indexing.FileObjectCrawler.isVisible(FileObjectCrawler.java:319)
   at org.netbeans.modules.parsing.impl.indexing.FileObjectCrawler.collect(FileObjectCrawler.java:254)
   at org.netbeans.modules.parsing.impl.indexing.FileObjectCrawler.collect(FileObjectCrawler.java:275)
   at org.netbeans.modules.parsing.impl.indexing.FileObjectCrawler.collect(FileObjectCrawler.java:275)
   at org.netbeans.modules.parsing.impl.indexing.FileObjectCrawler.collect(FileObjectCrawler.java:275)
   at org.netbeans.modules.parsing.impl.indexing.FileObjectCrawler.collect(FileObjectCrawler.java:275)
   at org.netbeans.modules.parsing.impl.indexing.FileObjectCrawler.collect(FileObjectCrawler.java:275)
   at org.netbeans.modules.parsing.impl.indexing.FileObjectCrawler.collect(FileObjectCrawler.java:275)
   at org.netbeans.modules.parsing.impl.indexing.FileObjectCrawler.collectResources(FileObjectCrawler.java:198)
   at org.netbeans.modules.parsing.impl.indexing.Crawler.init(Crawler.java:201)
   at org.netbeans.modules.parsing.impl.indexing.Crawler.getResources(Crawler.java:105)
   at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Work.scanFiles(RepositoryUpdater.java:3124)
   at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$FileListWork.getDone(RepositoryUpdater.java:3600)
   at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Work.doTheWork(RepositoryUpdater.java:3253)
   at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Task._run(RepositoryUpdater.java:5779)
   at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Task.access$5300(RepositoryUpdater.java:5445)
   at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Task$3$1.run(RepositoryUpdater.java:5704)
   at org.netbeans.modules.parsing.impl.RunWhenScanFinishedSupport.performScan(RunWhenScanFinishedSupport.java:96)
   at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Task$3.call(RepositoryUpdater.java:5700)
   at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Task$3.call(RepositoryUpdater.java:5696)
   at org.netbeans.modules.masterfs.filebasedfs.utils.FileChangedManager.priorityIO(FileChangedManager.java:176)
   at org.netbeans.modules.masterfs.providers.ProvidedExtensions.priorityIO(ProvidedExtensions.java:360)
   at org.netbeans.modules.parsing.impl.Utilities.runPriorityIO(Utilities.java:74)
   at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Task.run(RepositoryUpdater.java:5696)
   at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
   at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)