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Build: NetBeans IDE Dev (Build 100323-8e68ba49dec8) VM: Java HotSpot(TM) 64-Bit Server VM, 17.0-b11, Java(TM) SE Runtime Environment, 1.6.0_20-ea-b01 OS: Linux User Comments: mjreged: Browsing Mercurial outgoing changesets. Before deciding to push to remote repository. Clicked Diff section and clicked on one of the files inside the changesets to see a diff side by side. Stacktrace: java.lang.AssertionError: Null textComponent at org.netbeans.modules.editor.lib2.view.ViewBuilder.repaintAndReplaceViews(ViewBuilder.java:0) at org.netbeans.modules.editor.lib2.view.ViewUpdates.checkRebuild(ViewUpdates.java:0) at org.netbeans.modules.editor.lib2.view.ViewUpdates$FactoriesListener.viewFactoryChanged(ViewUpdates.java:0) at org.netbeans.modules.editor.lib2.view.EditorViewFactory.fireEvent(EditorViewFactory.java:0) at org.netbeans.modules.editor.lib2.view.HighlightsViewFactory.highlightChanged(HighlightsViewFactory.java:0) at org.netbeans.spi.editor.highlighting.support.AbstractHighlightsContainer.fireHighlightsChange(AbstractHighlightsContainer.java:0)
Created attachment 95631 [details] stacktrace
Created attachment 95661 [details] stacktrace Made a CVS-Diff at my src-folder.
Created attachment 95669 [details] stacktrace Went to Options > Fonts & Colors (this build changed my fonts & tab/spaces settings)
Created attachment 95671 [details] stacktrace Typed in editor and exception appeared...
Created attachment 95674 [details] stacktrace Tools > Options > Fonts & Colors.
Created attachment 95680 [details] stacktrace closed an editor window (because code folding was not working properly in it)
Created attachment 95681 [details] stacktrace Trying out Tonda's patch for bug 182448.
Created attachment 95684 [details] stacktrace if you use ctrl-z in a editor tab that has no changes, all text from that editor tab will be cleared. If you then try to close that editor tab, you'll get this exception
Created attachment 95688 [details] stacktrace Editor closed
Making this P2 as it is quite annoying.
Created attachment 95698 [details] stacktrace
This bug already has 20 duplicates see http://statistics.netbeans.org/exceptions/detail.do?id=166859
Created attachment 95704 [details] stacktrace invoked mercurial status action displayed dif for project properties -->> exception appeared
Created attachment 95712 [details] stacktrace Switching from "Editor" options to "Fonts & Colors".
Created attachment 95715 [details] stacktrace Changing the options. This may be associated with the Font Syntax tab or the Editor tab. It appeared as I switched between them.
Created attachment 95717 [details] stacktrace Saving options. This is based on the preview component on the font syntax tab.
Created attachment 96077 [details] stacktrace
Created attachment 96110 [details] stacktrace
Created attachment 96139 [details] stacktrace debugging a ruby on rails application.
Created attachment 96170 [details] stacktrace closed all files in the editor
Created attachment 96190 [details] stacktrace Closed all windows (by Second button Mouse Menu)
Created attachment 96258 [details] stacktrace This happened while debugging an application.
Too common, too obvious, and too annoying. P1.
How about suppressing this AE until there's a fix?
Created attachment 96281 [details] stacktrace
*** Bug 183132 has been marked as a duplicate of this bug. ***
*** Bug 183037 has been marked as a duplicate of this bug. ***
http://hg.netbeans.org/jet-main/rev/d66a6e6b86ad
Created attachment 96379 [details] stacktrace
Created attachment 96459 [details] stacktrace
In case the patch isn't a complete fix, this appears to be happening with new editor windows when the window is created, but the file hasn't been painted into it yet.
Integrated into 'main-golden', will be available in build *201004020200* on http://bits.netbeans.org/dev/nightly/ (upload may still be in progress) Changeset: http://hg.netbeans.org/main/rev/d66a6e6b86ad User: Miloslav Metelka <mmetelka@netbeans.org> Log: #182625 - Closing the editor tab causes AssertionError: Null textComponent.
*** Bug 183279 has been marked as a duplicate of this bug. ***
Created attachment 96731 [details] stacktrace
*** Bug 182939 has been marked as a duplicate of this bug. ***
*** Bug 182640 has been marked as a duplicate of this bug. ***