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We see the following logged errors: null org.eclipse.ui Error Tue Nov 24 11:36:42 CET 2020 Conflicting handlers for org.eclipse.ltk.ui.refactor.show.refactoring.history: {ActionDelegateHandlerProxy(null,org.eclipse.jdt.internal.ui.refactoring.actions.ShowRefactoringHistoryAction in org.eclipse.jdt.ui)} vs {ActionDelegateHandlerProxy(null,org.eclipse.ltk.ui.refactoring.actions.ShowRefactoringHistoryAction in org.eclipse.cdt.ui)} in: PartImpl (org.eclipse.e4.ui.compatibility.editor) removeOnHide org.eclipse.jdt.ui.CompilationUnitEditor (BringToTopOnBuild.java) Context java.lang.IllegalStateException: Conflicting handlers: {[ActionDelegateHandlerProxy(null,org.eclipse.jdt.internal.ui.refactoring.actions.ShowRefactoringHistoryAction in org.eclipse.jdt.ui), for 'org.eclipse.ltk.ui.refactor.show.refactoring.history', in TrimmedWindowImpl (IDEWindow) Context, activeWhen=AndExpression [children=[ActionSetExpression(org.eclipse.jdt.ui.CodingActionSet,org.eclipse.ui.internal.WorkbenchWindow@4769537a), WorkbenchWindowExpression(org.eclipse.ui.internal.WorkbenchWindow@4769537a)]], active=true, sourcePriority=16448, participating=true]} vs {[ActionDelegateHandlerProxy(null,org.eclipse.ltk.ui.refactoring.actions.ShowRefactoringHistoryAction in org.eclipse.cdt.ui), for 'org.eclipse.ltk.ui.refactor.show.refactoring.history', in TrimmedWindowImpl (IDEWindow) Context, activeWhen=AndExpression [children=[ActionSetExpression(org.eclipse.cdt.ui.CodingActionSet,org.eclipse.ui.internal.WorkbenchWindow@4769537a), WorkbenchWindowExpression(org.eclipse.ui.internal.WorkbenchWindow@4769537a)]], active=true, sourcePriority=16448, participating=true]} in: PartImpl (org.eclipse.e4.ui.compatibility.editor) removeOnHide org.eclipse.jdt.ui.CompilationUnitEditor (BringToTopOnBuild.java) Context null org.eclipse.ui Error Tue Nov 24 11:36:42 CET 2020 Conflicting handlers for org.eclipse.ltk.ui.refactor.create.refactoring.script: {ActionDelegateHandlerProxy(null,org.eclipse.jdt.internal.ui.refactoring.actions.CreateRefactoringScriptAction in org.eclipse.jdt.ui)} vs {ActionDelegateHandlerProxy(null,org.eclipse.ltk.ui.refactoring.actions.CreateRefactoringScriptAction in org.eclipse.cdt.ui)} in: PartImpl (org.eclipse.e4.ui.compatibility.editor) removeOnHide org.eclipse.jdt.ui.CompilationUnitEditor (BringToTopOnBuild.java) Context java.lang.IllegalStateException: Conflicting handlers: {[ActionDelegateHandlerProxy(null,org.eclipse.jdt.internal.ui.refactoring.actions.CreateRefactoringScriptAction in org.eclipse.jdt.ui), for 'org.eclipse.ltk.ui.refactor.create.refactoring.script', in TrimmedWindowImpl (IDEWindow) Context, activeWhen=AndExpression [children=[ActionSetExpression(org.eclipse.jdt.ui.CodingActionSet,org.eclipse.ui.internal.WorkbenchWindow@4769537a), WorkbenchWindowExpression(org.eclipse.ui.internal.WorkbenchWindow@4769537a)]], active=true, sourcePriority=16448, participating=true]} vs {[ActionDelegateHandlerProxy(null,org.eclipse.ltk.ui.refactoring.actions.CreateRefactoringScriptAction in org.eclipse.cdt.ui), for 'org.eclipse.ltk.ui.refactor.create.refactoring.script', in TrimmedWindowImpl (IDEWindow) Context, activeWhen=AndExpression [children=[ActionSetExpression(org.eclipse.cdt.ui.CodingActionSet,org.eclipse.ui.internal.WorkbenchWindow@4769537a), WorkbenchWindowExpression(org.eclipse.ui.internal.WorkbenchWindow@4769537a)]], active=true, sourcePriority=16448, participating=true]} in: PartImpl (org.eclipse.e4.ui.compatibility.editor) removeOnHide org.eclipse.jdt.ui.CompilationUnitEditor (BringToTopOnBuild.java) Context null org.eclipse.ui Error Tue Nov 24 11:36:42 CET 2020 Conflicting handlers for org.eclipse.ltk.ui.refactor.apply.refactoring.script: {ActionDelegateHandlerProxy(null,org.eclipse.jdt.internal.ui.refactoring.actions.ApplyRefactoringScriptAction in org.eclipse.jdt.ui)} vs {ActionDelegateHandlerProxy(null,org.eclipse.ltk.ui.refactoring.actions.ApplyRefactoringScriptAction in org.eclipse.cdt.ui)} in: PartImpl (org.eclipse.e4.ui.compatibility.editor) removeOnHide org.eclipse.jdt.ui.CompilationUnitEditor (BringToTopOnBuild.java) Context java.lang.IllegalStateException: Conflicting handlers: {[ActionDelegateHandlerProxy(null,org.eclipse.jdt.internal.ui.refactoring.actions.ApplyRefactoringScriptAction in org.eclipse.jdt.ui), for 'org.eclipse.ltk.ui.refactor.apply.refactoring.script', in TrimmedWindowImpl (IDEWindow) Context, activeWhen=AndExpression [children=[ActionSetExpression(org.eclipse.jdt.ui.CodingActionSet,org.eclipse.ui.internal.WorkbenchWindow@4769537a), WorkbenchWindowExpression(org.eclipse.ui.internal.WorkbenchWindow@4769537a)]], active=true, sourcePriority=16448, participating=true]} vs {[ActionDelegateHandlerProxy(null,org.eclipse.ltk.ui.refactoring.actions.ApplyRefactoringScriptAction in org.eclipse.cdt.ui), for 'org.eclipse.ltk.ui.refactor.apply.refactoring.script', in TrimmedWindowImpl (IDEWindow) Context, activeWhen=AndExpression [children=[ActionSetExpression(org.eclipse.cdt.ui.CodingActionSet,org.eclipse.ui.internal.WorkbenchWindow@4769537a), WorkbenchWindowExpression(org.eclipse.ui.internal.WorkbenchWindow@4769537a)]], active=true, sourcePriority=16448, participating=true]} in: PartImpl (org.eclipse.e4.ui.compatibility.editor) removeOnHide org.eclipse.jdt.ui.CompilationUnitEditor (BringToTopOnBuild.java) Context This can be reproduced by: 1. Install CDT into an Eclipse SDK. 2. Open a Java source. 3. Refactor rename a method. 4. Open the C/C++ perspective. 5. Observe the key binding conflict errors.
(In reply to Simeon Andreev from comment #0) > This can be reproduced by: I haven't been able to reproduce this. I tried a couple of different ways. The one thing I have not tried is creating a project with both Java and C natures at the same time. Is that possible problem? Do you understand the problem well enough to provide a patch that may fix it? > 5. Observe the key binding conflict errors. I believe the error message is not a key binding conflict?
Created attachment 284874 [details] Video showing reproduction of the problem, using the steps from the description. The video is after starting Eclipse in a new workspace. Probably depends on what CDT bits are installed; I downloaded an Eclipse SDK and installed the usual plug-ins I use plus CDT on top to work on CDT issues. Here is the list of CDT plug-ins (seeing that the conflict is between JDT and CDT, I assume installing CDT in an Eclipse SDK is enough): org.eclipse.cdt.autotools.core.source_2.1.0.202008310002.jar org.eclipse.cdt.autotools.core_2.1.0.202008310002.jar org.eclipse.cdt.autotools.docs_2.0.500.202008310002.jar org.eclipse.cdt.autotools.ui.source_2.1.0.202008310002.jar org.eclipse.cdt.autotools.ui_2.1.0.202008310002.jar org.eclipse.cdt.build.crossgcc.source_1.2.0.202008310002.jar org.eclipse.cdt.build.crossgcc_1.2.0.202008310002.jar org.eclipse.cdt.build.gcc.core.source_1.1.0.202008310002.jar org.eclipse.cdt.build.gcc.core_1.1.0.202008310002.jar org.eclipse.cdt.build.gcc.ui.source_1.1.0.202008310002.jar org.eclipse.cdt.build.gcc.ui_1.1.0.202008310002.jar org.eclipse.cdt.cmake.core.source_1.3.0.202009011824.jar org.eclipse.cdt.cmake.core_1.3.0.202009011824.jar org.eclipse.cdt.cmake.is.arm.source_1.0.0.202008310315.jar org.eclipse.cdt.cmake.is.arm_1.0.0.202008310315.jar org.eclipse.cdt.cmake.is.core.doc.source_1.0.0.202008310315.jar org.eclipse.cdt.cmake.is.core.doc_1.0.0.202008310315.jar org.eclipse.cdt.cmake.is.core.source_1.0.0.202008310315.jar org.eclipse.cdt.cmake.is.core.ui.source_1.0.0.202008310315.jar org.eclipse.cdt.cmake.is.core.ui_1.0.0.202008310315.jar org.eclipse.cdt.cmake.is.core_1.0.0.202008310315.jar org.eclipse.cdt.cmake.is.hpenonstop.source_1.0.0.202008310315.jar org.eclipse.cdt.cmake.is.hpenonstop_1.0.0.202008310315.jar org.eclipse.cdt.cmake.is.intel.source_1.0.0.202008310315.jar org.eclipse.cdt.cmake.is.intel_1.0.0.202008310315.jar org.eclipse.cdt.cmake.is.microsoft.source_1.0.0.202008310315.jar org.eclipse.cdt.cmake.is.microsoft_1.0.0.202008310315.jar org.eclipse.cdt.cmake.is.nvidia.source_1.0.0.202008310315.jar org.eclipse.cdt.cmake.is.nvidia_1.0.0.202008310315.jar org.eclipse.cdt.cmake.ui.source_1.3.0.202008310002.jar org.eclipse.cdt.cmake.ui_1.3.0.202008310002.jar org.eclipse.cdt.codan.checkers.source_3.4.0.202008310002.jar org.eclipse.cdt.codan.checkers.ui.source_3.3.0.202008310002.jar org.eclipse.cdt.codan.checkers.ui_3.3.0.202008310002.jar org.eclipse.cdt.codan.checkers_3.4.0.202008310002.jar org.eclipse.cdt.codan.core.cxx.source_3.5.0.202008310002.jar org.eclipse.cdt.codan.core.cxx_3.5.0.202008310002.jar org.eclipse.cdt.codan.core.source_4.1.0.202008310002.jar org.eclipse.cdt.codan.core_4.1.0.202008310002.jar org.eclipse.cdt.codan.ui.cxx.source_3.6.0.202008310002.jar org.eclipse.cdt.codan.ui.cxx_3.6.0.202008310002.jar org.eclipse.cdt.codan.ui.source_3.4.0.202008310002.jar org.eclipse.cdt.codan.ui_3.4.0.202008310002.jar org.eclipse.cdt.core.autotools.core.source_1.2.0.202008310002.jar org.eclipse.cdt.core.autotools.core_1.2.0.202008310002.jar org.eclipse.cdt.core.autotools.ui.source_1.1.0.202008310002.jar org.eclipse.cdt.core.autotools.ui_1.1.0.202008310002.jar org.eclipse.cdt.core.linux.source_6.0.0.202008310002.jar org.eclipse.cdt.core.linux.x86_64_6.0.0.202008310002.jar org.eclipse.cdt.core.linux_6.0.0.202008310002.jar org.eclipse.cdt.core.native.source_6.0.0.202009030027.jar org.eclipse.cdt.core.native_6.0.0.202009030027.jar org.eclipse.cdt.core.source_7.0.1.202010091427.jar org.eclipse.cdt.core_7.0.1.202010091427.jar org.eclipse.cdt.debug.application.doc_1.1.600.202008310002.jar org.eclipse.cdt.debug.application.source_1.2.1.202010061707.jar org.eclipse.cdt.debug.core.memory.source_0.1.0.202008310315.jar org.eclipse.cdt.debug.core.memory_0.1.0.202008310315.jar org.eclipse.cdt.debug.core.source_8.5.0.202008310002.jar org.eclipse.cdt.debug.core_8.5.0.202008310002.jar org.eclipse.cdt.debug.dap.gdbjtag.source_1.101.0.202008310315.jar org.eclipse.cdt.debug.dap.gdbjtag_1.101.0.202008310315.jar org.eclipse.cdt.debug.dap.source_1.2.0.202008310315.jar org.eclipse.cdt.debug.gdbjtag.core.source_10.0.0.202008310002.jar org.eclipse.cdt.debug.gdbjtag.core_10.0.0.202008310002.jar org.eclipse.cdt.debug.gdbjtag.ui.source_9.0.0.202008310002.jar org.eclipse.cdt.debug.gdbjtag.ui_9.0.0.202008310002.jar org.eclipse.cdt.debug.gdbjtag_7.0.301.202010061707.jar org.eclipse.cdt.debug.ui.memory.floatingpoint.source_1.1.0.202008310002.jar org.eclipse.cdt.debug.ui.memory.floatingpoint_1.1.0.202008310002.jar org.eclipse.cdt.debug.ui.memory.memorybrowser.source_1.4.0.202008310002.jar org.eclipse.cdt.debug.ui.memory.memorybrowser_1.4.0.202008310002.jar org.eclipse.cdt.debug.ui.memory.search.source_1.4.0.202008310002.jar org.eclipse.cdt.debug.ui.memory.search_1.4.0.202008310002.jar org.eclipse.cdt.debug.ui.memory.traditional.source_1.6.0.202008310002.jar org.eclipse.cdt.debug.ui.memory.traditional_1.6.0.202008310002.jar org.eclipse.cdt.debug.ui.memory.transport.source_2.2.0.202008310002.jar org.eclipse.cdt.debug.ui.memory.transport_2.2.0.202008310002.jar org.eclipse.cdt.debug.ui.source_8.4.0.202008310002.jar org.eclipse.cdt.debug.ui_8.4.0.202008310002.jar org.eclipse.cdt.doc.isv_5.4.501.202010091427.jar org.eclipse.cdt.doc.user_5.4.500.202008310002.jar org.eclipse.cdt.docker.launcher.source_1.3.0.202009070147.jar org.eclipse.cdt.docker.launcher_1.3.0.202009070147.jar org.eclipse.cdt.dsf.gdb.multicorevisualizer.ui.source_1.2.0.202008310002.jar org.eclipse.cdt.dsf.gdb.multicorevisualizer.ui_1.2.0.202008310002.jar org.eclipse.cdt.dsf.gdb.source_6.0.0.202008310002.jar org.eclipse.cdt.dsf.gdb.ui.source_2.7.0.202008310002.jar org.eclipse.cdt.dsf.gdb.ui_2.7.0.202008310002.jar org.eclipse.cdt.dsf.gdb_6.0.0.202008310002.jar org.eclipse.cdt.dsf.source_2.9.0.202008310002.jar org.eclipse.cdt.dsf.ui.source_2.6.0.202008310002.jar org.eclipse.cdt.dsf.ui_2.6.0.202008310002.jar org.eclipse.cdt.dsf_2.9.0.202008310002.jar org.eclipse.cdt.examples.dsf.pda.source_2.2.0.202009010132.jar org.eclipse.cdt.examples.dsf.pda.ui.source_2.2.0.202008310002.jar org.eclipse.cdt.examples.dsf.pda.ui_2.2.0.202008310002.jar org.eclipse.cdt.examples.dsf.pda_2.2.0.202009010132.jar org.eclipse.cdt.examples.dsf.source_2.3.0.202008310002.jar org.eclipse.cdt.examples.dsf_2.3.0.202008310002.jar org.eclipse.cdt.flatpak.launcher.source_1.0.1.202010061721.jar org.eclipse.cdt.flatpak.launcher_1.0.1.202010061721.jar org.eclipse.cdt.gdb.source_7.1.0.202008310002.jar org.eclipse.cdt.gdb.ui.source_7.1.0.202008310002.jar org.eclipse.cdt.gdb.ui_7.1.0.202008310002.jar org.eclipse.cdt.gdb_7.1.0.202008310002.jar org.eclipse.cdt.launch.remote.source_2.6.0.202008310002.jar org.eclipse.cdt.launch.remote_2.6.0.202008310002.jar org.eclipse.cdt.launch.serial.core.source_1.1.0.202008310002.jar org.eclipse.cdt.launch.serial.core_1.1.0.202008310002.jar org.eclipse.cdt.launch.serial.ui.source_1.1.0.202008310002.jar org.eclipse.cdt.launch.serial.ui_1.1.0.202008310002.jar org.eclipse.cdt.launch.source_10.0.0.202009010132.jar org.eclipse.cdt.launch_10.0.0.202009010132.jar org.eclipse.cdt.llvm.dsf.lldb.core.source_1.101.0.202008310002.jar org.eclipse.cdt.llvm.dsf.lldb.core_1.101.0.202008310002.jar org.eclipse.cdt.llvm.dsf.lldb.ui.source_1.1.0.202008310002.jar org.eclipse.cdt.llvm.dsf.lldb.ui_1.1.0.202008310002.jar org.eclipse.cdt.lsp.clangd.source_0.1.0.202008310315.jar org.eclipse.cdt.lsp.clangd_0.1.0.202008310315.jar org.eclipse.cdt.lsp.core.source_1.1.100.202009021744.jar org.eclipse.cdt.lsp.core_1.1.100.202009021744.jar org.eclipse.cdt.lsp.ui.source_0.1.100.202009021744.jar org.eclipse.cdt.lsp.ui_0.1.100.202009021744.jar org.eclipse.cdt.make.core.source_7.5.0.202009040332.jar org.eclipse.cdt.make.core_7.5.0.202009040332.jar org.eclipse.cdt.make.ui.source_8.0.0.202008310002.jar org.eclipse.cdt.make.ui_8.0.0.202008310002.jar org.eclipse.cdt.managedbuilder.core.source_9.0.0.202009010132.jar org.eclipse.cdt.managedbuilder.core_9.0.0.202009010132.jar org.eclipse.cdt.managedbuilder.gnu.ui.source_8.4.0.202008310002.jar org.eclipse.cdt.managedbuilder.gnu.ui_8.4.0.202008310002.jar org.eclipse.cdt.managedbuilder.llvm.ui.source_1.3.0.202008242150.jar org.eclipse.cdt.managedbuilder.llvm.ui_1.3.0.202008242150.jar org.eclipse.cdt.managedbuilder.ui.source_9.2.0.202008310002.jar org.eclipse.cdt.managedbuilder.ui_9.2.0.202008310002.jar org.eclipse.cdt.meson.core.source_1.1.0.202008310002.jar org.eclipse.cdt.meson.core_1.1.0.202008310002.jar org.eclipse.cdt.meson.docs_1.0.500.202008310002.jar org.eclipse.cdt.meson.ui.editor.source_1.1.0.202008310315.jar org.eclipse.cdt.meson.ui.editor_1.1.0.202008310315.jar org.eclipse.cdt.meson.ui.source_1.1.0.202008310002.jar org.eclipse.cdt.meson.ui_1.1.0.202008310002.jar org.eclipse.cdt.msw.build.source_1.2.0.202008310002.jar org.eclipse.cdt.msw.build_1.2.0.202008310002.jar org.eclipse.cdt.native.serial.source_1.2.0.202009030027.jar org.eclipse.cdt.native.serial_1.2.0.202009030027.jar org.eclipse.cdt.platform.branding.source_10.0.1.202009251553.jar org.eclipse.cdt.platform.branding_10.0.1.202009251553.jar org.eclipse.cdt.qt.core.source_2.3.1.202010061707.jar org.eclipse.cdt.qt.core_2.3.1.202010061707.jar org.eclipse.cdt.qt.ui.source_2.1.1.202010061707.jar org.eclipse.cdt.qt.ui_2.1.1.202010061707.jar org.eclipse.cdt.remote.core.source_1.1.0.202008310002.jar org.eclipse.cdt.remote.core_1.1.0.202008310002.jar org.eclipse.cdt.sdk_10.0.1.202009251553.jar org.eclipse.cdt.testsrunner.boost.source_7.1.0.202008310002.jar org.eclipse.cdt.testsrunner.boost_7.1.0.202008310002.jar org.eclipse.cdt.testsrunner.gtest.source_7.1.0.202008310002.jar org.eclipse.cdt.testsrunner.gtest_7.1.0.202008310002.jar org.eclipse.cdt.testsrunner.qttest.source_7.1.0.202008310002.jar org.eclipse.cdt.testsrunner.qttest_7.1.0.202008310002.jar org.eclipse.cdt.testsrunner.source_8.2.0.202008310002.jar org.eclipse.cdt.testsrunner.tap.source_1.1.0.202008310002.jar org.eclipse.cdt.testsrunner.tap_1.1.0.202008310002.jar org.eclipse.cdt.testsrunner_8.2.0.202008310002.jar org.eclipse.cdt.ui.source_7.0.1.202010061707.jar org.eclipse.cdt.ui_7.0.1.202010061707.jar org.eclipse.cdt.util.source_5.0.300.202008310002.jar org.eclipse.cdt.util_5.0.300.202008310002.jar org.eclipse.cdt.visualizer.core.source_1.1.0.202008310002.jar org.eclipse.cdt.visualizer.core_1.1.0.202008310002.jar org.eclipse.cdt.visualizer.ui.source_1.4.0.202008310002.jar org.eclipse.cdt.visualizer.ui_1.4.0.202008310002.jar org.eclipse.cdt_10.0.1.202009251553.jar org.eclipse.tm.terminal.connector.cdtserial.source_4.7.100.202008310315.jar org.eclipse.tm.terminal.connector.cdtserial_4.7.100.202008310315.jar
The command definitions are in main CDT UI bundle and what I did was very similar. The video is great, so I will try again to see if I get a different result. BTW I just noticed your "Version" is 9.6.0. Is this all with 2018-12 versions of everything? I initially tried with 4.18 M3 and cdt master (aka 2020-12 versions).
The first time I saw the problem it was 9.6, though that was a while ago. The CDT I have installed now is: C/C++ Development Tools Version: 10.0.1.202010091427 Build id: 20201009-1616 On top of: Eclipse SDK Version: 2020-12 (4.18) Build id: I20201103-0030
(In reply to Simeon Andreev from comment #4) > Build id: I20201103-0030 Since this is not available anymore I tried with 4.18 M3 and installed everything in the CDT 10.0 release repo and I got the failure.
I have tried a few times and the only way I can reproduce is with CDT's LSP4E support installed. i.e. these bundles: > org.eclipse.cdt.lsp.clangd.source_0.1.0.202008310315.jar > org.eclipse.cdt.lsp.clangd_0.1.0.202008310315.jar > org.eclipse.cdt.lsp.core.source_1.1.100.202009021744.jar > org.eclipse.cdt.lsp.core_1.1.100.202009021744.jar > org.eclipse.cdt.lsp.ui.source_0.1.100.202009021744.jar > org.eclipse.cdt.lsp.ui_0.1.100.202009021744.jar Regardless, I can't reproduce except from a fresh workspace.
I think the error is logged sporadically, as I can't seem to reproduce it always. I don't know how that makes sense though, other than its some platform bug. Anyway one of the actions for which the error complains: Definition in CDT UI, action set org.eclipse.cdt.ui.CodingActionSet: <action class="org.eclipse.ltk.ui.refactoring.actions.ApplyRefactoringScriptAction" definitionId="org.eclipse.ltk.ui.refactor.apply.refactoring.script" id="org.eclipse.cdt.ui.actions.applyRefactoringScript" label="%applyScriptAction.label" menubarPath="org.eclipse.jdt.ui.refactoring.menu/historyGroup" retarget="false"> </action> Definition in JDT UI, action set org.eclipse.jdt.ui.CodingActionSet: <action class="org.eclipse.jdt.internal.ui.refactoring.actions.ApplyRefactoringScriptAction" definitionId="org.eclipse.ltk.ui.refactor.apply.refactoring.script" id="org.eclipse.ltk.ui.actions.ApplyRefactoringStript" label="%Refactoring.applyScript.label" menubarPath="org.eclipse.jdt.ui.refactoring.menu/scriptGroup"/> I find no other matches for 'org.eclipse.ltk.ui.refactor.apply.refactoring.script' in the CDT repository.
Actually it seems the conflict is found when I try to open the Error Log view, i.e. when I invoke quick access *after* the reproduction steps.
Andrey any platform contributor that is familiar with actions and commands, that could give us hints here? As far as I can tell, JDT UI and CDT UI define 2 actions that handle the same command, resulting in the conflict (CDT seems to "re-use" the JDT menu for its action). I have no idea how the conflict is supposed to be resolved. I'm not seeing enablement/activation expressions that can be specified for either action: https://help.eclipse.org/2020-09/index.jsp?topic=%2Forg.eclipse.platform.doc.isv%2Freference%2Fextension-points%2Forg_eclipse_ui_actionSets.html (see elements for "action")
(In reply to Simeon Andreev from comment #9) > Andrey any platform contributor that is familiar with actions and commands, > that could give us hints here? > > As far as I can tell, JDT UI and CDT UI define 2 actions that handle the > same command, resulting in the conflict (CDT seems to "re-use" the JDT menu > for its action). I have no idea how the conflict is supposed to be resolved. > > I'm not seeing enablement/activation expressions that can be specified for > either action: > > https://help.eclipse.org/2020-09/index.jsp?topic=%2Forg.eclipse.platform.doc. > isv%2Freference%2Fextension-points%2Forg_eclipse_ui_actionSets.html > (see elements for "action") I would say let's move to platform and ask if someone has an idea. For me it looks like perspective switch confuses commands/handlers, probably some activation / deactivation code is running in "wrong" order.
There have been more reports of conflicting handlers, especially while the scope is switched, e.g. switching a tab or a perspective. These conflicts are then intermittent and should go away when the context is stable again. There are also some inconsistencies between the context and the active part, when switching perspectives, then can add to this problem. I had made an attempt in Bug 549432 to reduce the number of intermittent handlers. However that patch caused a lot of regressions or triggered other bugs.
