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Eclipse DSL Neon M7 eclipse.buildId=4.6.0.I20160428-0800 java.version=1.8.0_45 After starting Neon M7 I've noticed an error log complaining about Conflicting handlers: Conflicting handlers for org.eclipse.ui.navigate.backwardHistory: {ActionHandler(org.eclipse.ui.internal.dialogs.PreferencePageHistory$1@16139b0)} vs {ActionHandler(org.eclipse.ui.internal.NavigationHistoryAction@2fcffc05)}
It would be good to have: donwload link, list of additional plug-ins installed, and instructions the full error log. Thanks for reporting!
I cannot reproduce in Eclipse DSL Tools Version: Neon Milestone 7 (4.6.0M7) Build id:20160505-1310 This is a non-critical bug, initially spotted in 2014. Most likely happens when different plug-ins are defining conflicting handlers. Could you please provide a download link or the steps to reproduce ?
Just got exact same conflict with 4.10 : Conflicting handlers for org.eclipse.ui.navigate.backwardHistory: {ActionHandler(org.eclipse.ui.internal.dialogs.PreferencePageHistory$1@86fa656)} vs {ActionHandler(org.eclipse.ui.internal.NavigationHistoryAction@454e9d65)} The log does not add the context and stack, I will push a patch to fix this, may be we see what is going on then.
New Gerrit change created: https://git.eclipse.org/r/131540
(In reply to Eclipse Genie from comment #4) > New Gerrit change created: https://git.eclipse.org/r/131540 The error looks now like this below (faked, since I can't reproduce the problem yet): Conflicting handlers for command org.eclipse.ui.edit.text.toggleBlockSelectionMode: {ActionHandler(org.eclipse.ui.texteditor.BlockSelectionModeToggleAction@26c2f767)} vs {ActionHandler(org.eclipse.ui.texteditor.BlockSelectionModeToggleAction@26c2f767)} in: PartImpl (org.eclipse.e4.ui.compatibility.editor) org.eclipse.jdt.ui.CompilationUnitEditor removeOnHide (A.java) Context java.lang.IllegalStateException: Conflicting handlers: {[ActionHandler(org.eclipse.ui.texteditor.BlockSelectionModeToggleAction@26c2f767), for 'org.eclipse.ui.edit.text.toggleBlockSelectionMode', in PartImpl (org.eclipse.e4.ui.compatibility.editor) org.eclipse.jdt.ui.CompilationUnitEditor removeOnHide (A.java) Context, activeWhen=AndExpression [children=[LegacyHandlerSubmission(Shell {runtime-Java9 - A/src/A.java - Eclipse SDK},null,PartSite(id=org.eclipse.jdt.ui.CompilationUnitEditor,pluginId=org.eclipse.jdt.ui,registeredName=Java Editor,hashCode=633578561)), ActivePartExpression(org.eclipse.jdt.internal.ui.javaeditor.CompilationUnitEditor@614ae4eb)]], active=true, sourcePriority=68162560, participating=true]} vs {[ActionHandler(org.eclipse.ui.texteditor.BlockSelectionModeToggleAction@26c2f767), for 'org.eclipse.ui.edit.text.toggleBlockSelectionMode', in TrimmedWindowImpl (IDEWindow) Context, activeWhen=AndExpression [children=[LegacyEditorActionBarExpression(org.eclipse.jdt.ui.CompilationUnitEditor), WorkbenchWindowExpression(org.eclipse.ui.internal.WorkbenchWindow@30704f85)]], active=true, sourcePriority=4210689, participating=true]} in: PartImpl (org.eclipse.e4.ui.compatibility.editor) org.eclipse.jdt.ui.CompilationUnitEditor removeOnHide (A.java) Context at org.eclipse.ui.internal.handlers.LegacyHandlerService$HandlerSelectionFunction.compute(LegacyHandlerService.java:147) at org.eclipse.e4.core.internal.contexts.ValueComputation.get(ValueComputation.java:65) at org.eclipse.e4.core.internal.contexts.EclipseContext.internalGet(EclipseContext.java:251) at org.eclipse.e4.core.internal.contexts.EclipseContext.get(EclipseContext.java:238) at org.eclipse.e4.core.commands.internal.HandlerServiceImpl.lookUpHandler(HandlerServiceImpl.java:103) at org.eclipse.e4.core.commands.internal.HandlerServiceHandler.setEnabled(HandlerServiceHandler.java:75) at org.eclipse.core.commands.Command.setEnabled(Command.java:865) at org.eclipse.e4.core.commands.internal.HandlerServiceImpl.canExecute(HandlerServiceImpl.java:179) at org.eclipse.e4.core.commands.internal.HandlerServiceImpl.canExecute(HandlerServiceImpl.java:166) at org.eclipse.ui.internal.menus.MenuHelper$1.evaluate(MenuHelper.java:243) at org.eclipse.e4.ui.internal.workbench.ContributionsAnalyzer.isCoreExpressionVisible(ContributionsAnalyzer.java:289) at org.eclipse.e4.ui.internal.workbench.ContributionsAnalyzer.isVisible(ContributionsAnalyzer.java:263) at org.eclipse.e4.ui.workbench.renderers.swt.ContributionRecord.computeVisibility(ContributionRecord.java:170) at org.eclipse.e4.ui.workbench.renderers.swt.ContributionRecord.updateVisibility(ContributionRecord.java:101) at org.eclipse.e4.ui.workbench.renderers.swt.MenuManagerRendererFilter.updateElementVisibility(MenuManagerRendererFilter.java:194) at org.eclipse.e4.ui.workbench.renderers.swt.MenuManagerRendererFilter.updateElementVisibility(MenuManagerRendererFilter.java:205)
Gerrit change https://git.eclipse.org/r/131540 was merged to [master]. Commit: http://git.eclipse.org/c/platform/eclipse.platform.ui.git/commit/?id=8b33c31f3e56c5883277143dedaa03cdb7f458aa
This bug hasn't had any activity in quite some time. Maybe the problem got resolved, was a duplicate of something else, or became less pressing for some reason - or maybe it's still relevant but just hasn't been looked at yet. As such, we're closing this bug. If you have further information on the current state of the bug, please add it and reopen this bug. The information can be, for example, that the problem still occurs, that you still want the feature, that more information is needed, or that the bug is (for whatever reason) no longer relevant. -- The automated Eclipse Genie.
