I've just encountered the same issue. NetBeans was constantly freezing on file save so I had the chance to repeat it over and over again.
I unchecked *Remove Unused Imports *and tried to save again but it froze. Then I unchecked *Organize Imports *and tried to save again (both Remove Unused Imports and Organize Imports are unchecked) and it worked. My guess is that Organize Imports option is somehow interrupted while holding on to resources and it just won't release them. When I tried to save the file, it had a syntax error which likely caused the interruption. I had an inner class definition whose constructor name was not the same as the class name. I hope this provides some insights. Omer Halit On Sat, Sep 17, 2022 at 9:44 PM Ömer Halit Çizmeci <omerha...@gmail.com> wrote: > I am using Gradle with several sub projects. There was no indexing or > background task when this happened. At least not in the UI. > > On Sat, Sep 17, 2022, 9:35 PM Eric Bresie <ebre...@gmail.com> wrote: > >> Just curious, what kind of build tool is in use (i.e. Maven, Gradle, Ant, >> or none of the above)? >> >> If Maven, is it possible it's trying to pulldown and index the maven >> artifacts? >> >> Eric Bresie >> ebre...@gmail.com >> >> >> On Fri, Sep 16, 2022 at 6:00 PM Ömer Halit Çizmeci <omerha...@gmail.com> >> wrote: >> >> > I just had the same problem and this is what the stack trace looks >> like... >> > I couldn't get more info at the moment. >> > >> > >> > java.lang.NullPointerException: Cannot invoke >> > "org.openide.filesystems.FileObject.getAttribute(String)" because "fo" >> is >> > null >> > at org.openide.filesystems.FileUtil.toFile(FileUtil.java:813) >> > at >> org.openide.filesystems.FileUtil.getFileDisplayName(FileUtil.java:1574) >> > at >> > >> > >> org.netbeans.modules.java.hints.spiimpl.batch.BatchSearch$2.run(BatchSearch.java:279) >> > at >> > >> > >> org.netbeans.modules.java.hints.spiimpl.batch.BatchSearch$2.run(BatchSearch.java:240) >> > at >> org.netbeans.modules.java.source.parsing.MimeTask.run(MimeTask.java:60) >> > at >> > >> > >> org.netbeans.modules.parsing.impl.TaskProcessor.callUserTask(TaskProcessor.java:586) >> > at >> > >> > >> org.netbeans.modules.parsing.api.ParserManager$MimeTaskAction.run(ParserManager.java:364) >> > at >> > >> > >> org.netbeans.modules.parsing.api.ParserManager$MimeTaskAction.run(ParserManager.java:347) >> > at >> > >> > >> org.netbeans.modules.parsing.impl.TaskProcessor$2.call(TaskProcessor.java:181) >> > at >> > >> > >> org.netbeans.modules.parsing.impl.TaskProcessor$2.call(TaskProcessor.java:178) >> > at >> > >> > >> org.netbeans.modules.masterfs.filebasedfs.utils.FileChangedManager.priorityIO(FileChangedManager.java:153) >> > at >> > >> > >> org.netbeans.modules.masterfs.providers.ProvidedExtensions.priorityIO(ProvidedExtensions.java:335) >> > at >> > >> > >> org.netbeans.modules.parsing.nb.DataObjectEnvFactory.runPriorityIO(DataObjectEnvFactory.java:118) >> > at >> > >> > >> org.netbeans.modules.parsing.impl.Utilities.runPriorityIO(Utilities.java:67) >> > at >> > >> > >> org.netbeans.modules.parsing.impl.TaskProcessor.runUserTask(TaskProcessor.java:178) >> > at >> > >> > >> org.netbeans.modules.parsing.api.ParserManager.parse(ParserManager.java:318) >> > at >> > >> > >> org.netbeans.api.java.source.JavaSource.runUserActionTaskImpl(JavaSource.java:433) >> > at >> > >> > >> org.netbeans.api.java.source.JavaSource.runUserActionTask(JavaSource.java:425) >> > at >> > >> > >> org.netbeans.modules.java.hints.spiimpl.batch.BatchSearch.getLocalVerifiedSpans(BatchSearch.java:240) >> > at >> > >> > >> org.netbeans.modules.java.hints.spiimpl.batch.BatchSearch.access$400(BatchSearch.java:76) >> > at >> > >> > >> org.netbeans.modules.java.hints.spiimpl.batch.BatchSearch$LocalIndexEnquirer.validateResource(BatchSearch.java:550) >> > at >> > >> > >> org.netbeans.modules.java.hints.spiimpl.batch.BatchSearch.getVerifiedSpans(BatchSearch.java:183) >> > at >> > >> > >> org.netbeans.modules.java.hints.spiimpl.batch.BatchUtilities.applyFixes(BatchUtilities.java:174) >> > at >> > >> > >> org.netbeans.modules.java.hints.onsave.RemoveUnusedAfterSave.performTask(RemoveUnusedAfterSave.java:85) >> > at >> > >> > >> org.netbeans.modules.editor.lib.BeforeSaveTasks$TaskRunnable$1.run(BeforeSaveTasks.java:148) >> > at >> > >> > >> org.netbeans.editor.GuardedDocument.runAtomicAsUser(GuardedDocument.java:333) >> > at >> > >> > >> org.netbeans.modules.editor.lib.BeforeSaveTasks$TaskRunnable.run(BeforeSaveTasks.java:131) >> > at >> > >> > >> org.netbeans.modules.editor.lib.TrailingWhitespaceRemove.runLocked(TrailingWhitespaceRemove.java:77) >> > at >> > >> > >> org.netbeans.modules.editor.lib.BeforeSaveTasks$TaskRunnable.run(BeforeSaveTasks.java:128) >> > at >> > >> > >> org.netbeans.modules.editor.impl.ReformatBeforeSaveTask.runLocked(ReformatBeforeSaveTask.java:101) >> > at >> > >> > >> org.netbeans.modules.editor.lib.BeforeSaveTasks$TaskRunnable.run(BeforeSaveTasks.java:128) >> > at >> > >> > >> org.netbeans.modules.java.hints.onsave.RemoveUnusedAfterSave$1.run(RemoveUnusedAfterSave.java:98) >> > at >> > >> > >> org.netbeans.modules.java.hints.onsave.RemoveUnusedAfterSave$1.run(RemoveUnusedAfterSave.java:96) >> > at >> > >> org.netbeans.api.java.source.JavaSource$MultiTask.run(JavaSource.java:504) >> > at >> > >> > >> org.netbeans.modules.parsing.impl.TaskProcessor.callUserTask(TaskProcessor.java:586) >> > at >> > >> > >> org.netbeans.modules.parsing.api.ParserManager$UserTaskAction.run(ParserManager.java:132) >> > at >> > >> > >> org.netbeans.modules.parsing.api.ParserManager$UserTaskAction.run(ParserManager.java:116) >> > at >> > >> > >> org.netbeans.modules.parsing.impl.TaskProcessor$2.call(TaskProcessor.java:181) >> > at >> > >> > >> org.netbeans.modules.parsing.impl.TaskProcessor$2.call(TaskProcessor.java:178) >> > at >> > >> > >> org.netbeans.modules.masterfs.filebasedfs.utils.FileChangedManager.priorityIO(FileChangedManager.java:153) >> > at >> > >> > >> org.netbeans.modules.masterfs.providers.ProvidedExtensions.priorityIO(ProvidedExtensions.java:335) >> > at >> > >> > >> org.netbeans.modules.parsing.nb.DataObjectEnvFactory.runPriorityIO(DataObjectEnvFactory.java:118) >> > at >> > >> > >> org.netbeans.modules.parsing.impl.Utilities.runPriorityIO(Utilities.java:67) >> > at >> > >> > >> org.netbeans.modules.parsing.impl.TaskProcessor.runUserTask(TaskProcessor.java:178) >> > at >> > >> org.netbeans.modules.parsing.api.ParserManager.parse(ParserManager.java:83) >> > at >> > >> > >> org.netbeans.api.java.source.JavaSource.runUserActionTaskImpl(JavaSource.java:454) >> > at >> > >> > >> org.netbeans.api.java.source.JavaSource.runUserActionTask(JavaSource.java:425) >> > at >> > >> > >> org.netbeans.modules.java.hints.onsave.RemoveUnusedAfterSave.runLocked(RemoveUnusedAfterSave.java:96) >> > at >> > >> > >> org.netbeans.modules.editor.lib.BeforeSaveTasks$TaskRunnable.run(BeforeSaveTasks.java:128) >> > at >> > >> > >> org.netbeans.modules.editor.lib.BeforeSaveTasks.runTasks(BeforeSaveTasks.java:105) >> > at >> > >> > >> org.netbeans.modules.editor.lib.BeforeSaveTasks$2.run(BeforeSaveTasks.java:86) >> > at >> > >> > >> org.openide.text.CloneableEditorSupport.saveDocumentImpl(CloneableEditorSupport.java:729) >> > at >> > >> > >> org.openide.text.CloneableEditorSupport.saveDocument(CloneableEditorSupport.java:620) >> > at >> > >> org.openide.text.DataEditorSupport.superSaveDoc(DataEditorSupport.java:572) >> > at >> > >> > >> org.openide.text.DataEditorSupport$SaveImpl.run(DataEditorSupport.java:1332) >> > at >> > >> org.openide.filesystems.EventControl.runAtomicAction(EventControl.java:102) >> > at >> org.openide.filesystems.FileSystem.runAtomicAction(FileSystem.java:494) >> > at org.openide.filesystems.FileUtil.runAtomicAction(FileUtil.java:402) >> > at >> > >> org.openide.text.DataEditorSupport.saveDocument(DataEditorSupport.java:568) >> > at >> > >> > >> org.netbeans.modules.openide.loaders.SimpleES$SaveCookieImpl.save(SimpleES.java:202) >> > at org.openide.actions.SaveAction.performAction(SaveAction.java:107) >> > at org.openide.actions.SaveAction.performAction(SaveAction.java:77) >> > at >> > >> > >> org.openide.actions.SaveAction$Delegate.actionPerformed(SaveAction.java:224) >> > at >> > >> > >> org.openide.awt.ContextAction$Performer.actionPerformed(ContextAction.java:446) >> > at >> org.openide.awt.ContextManager.actionPerformed(ContextManager.java:263) >> > at org.openide.awt.ContextAction.actionPerformed(ContextAction.java:106) >> > at org.openide.util.actions.ActionInvoker$1.run(ActionInvoker.java:68) >> > at >> > >> > >> org.openide.util.actions.ActionInvoker$ActionRunnable.actionPerformed(ActionInvoker.java:137) >> > at org.netbeans.core.ModuleActions.invokeAction(ModuleActions.java:84) >> > at >> > >> > >> org.netbeans.modules.openide.actions.ActionsBridgeImpl.invokeAction(ActionsBridgeImpl.java:35) >> > at >> > >> > >> org.openide.util.actions.ActionInvoker$ActionRunnable.doRun(ActionInvoker.java:128) >> > at org.openide.util.actions.ActionInvoker$2.run(ActionInvoker.java:85) >> > at >> org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1418) >> > at >> > >> > >> org.netbeans.modules.openide.util.GlobalLookup.execute(GlobalLookup.java:45) >> > at org.openide.util.lookup.Lookups.executeWith(Lookups.java:278) >> > [catch] at >> > >> org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2033) >> > >> >
