[Bug]: Exception

[mallowigi]

Describe the bug

java.lang.Throwable: ID 'com.mallowigi.idea.actions.accents.MTAbyssAccentAction' is already taken by action 'Abyss (Abyss)' (class com.mallowigi.idea.actions.accents.MTDynamicAccentAction) null. Action 'Abyss (Abyss)' (class com.mallowigi.idea.actions.accents.MTDynamicAccentAction) cannot use the same ID
	at com.intellij.openapi.diagnostic.Logger.error(Logger.java:378)
	at com.intellij.openapi.actionSystem.impl.ActionManagerRegistrationKt.reportActionIdCollision(ActionManagerRegistration.kt:312)
	at com.intellij.openapi.actionSystem.impl.ActionManagerRegistrationKt.registerAction(ActionManagerRegistration.kt:441)
	at com.intellij.openapi.actionSystem.impl.ActionManagerRegistrationKt.registerAction$default(ActionManagerRegistration.kt:410)
	at com.intellij.openapi.actionSystem.impl.ActionManagerImpl.registerAction$lambda$1(ActionManagerImpl.kt:411)
	at com.intellij.openapi.actionSystem.impl.ActionManagerState.withLock(ActionManagerState.kt:37)
	at com.intellij.openapi.actionSystem.impl.ActionManagerImpl.registerAction(ActionManagerImpl.kt:410)
	at com.mallowigi.idea.actions.accents.MTAccentActionGroup.registerActions(MTAccentActionGroup.kt:51)
	at com.mallowigi.idea.actions.accents.MTAccentActionGroup.<init>(MTAccentActionGroup.kt:37)
	at com.intellij.serviceContainer.ComponentManagerImpl.findConstructorAndInstantiateClass(ComponentManagerImpl.kt:965)
	at com.intellij.serviceContainer.ComponentManagerImpl.doInstantiateClass(ComponentManagerImpl.kt:974)
	at com.intellij.serviceContainer.ComponentManagerImpl.instantiateClass$lambda$1$0(ComponentManagerImpl.kt:958)
	at com.intellij.concurrency.ThreadContext.installThreadContext(threadContext.kt:307)
	at com.intellij.concurrency.ThreadContext.installThreadContext$default(threadContext.kt:304)
	at com.intellij.serviceContainer.ComponentManagerImpl.instantiateClass$lambda$1(ComponentManagerImpl.kt:957)
	at com.intellij.concurrency.ThreadContext.resetThreadContext(threadContext.kt:295)
	at com.intellij.serviceContainer.ComponentManagerImpl.instantiateClass(ComponentManagerImpl.kt:956)
	at com.intellij.serviceContainer.ComponentManagerImpl.instantiateClass(ComponentManagerImpl.kt:1000)
	at com.intellij.openapi.actionSystem.impl.ActionManagerXmlSupportKt.instantiate(ActionManagerXmlSupport.kt:93)
	at com.intellij.openapi.actionSystem.impl.ActionManagerXmlSupportKt.convertGroupStub(ActionManagerXmlSupport.kt:148)
	at com.intellij.openapi.actionSystem.impl.ActionManagerRegistrationKt.getAction(ActionManagerRegistration.kt:477)
	at com.intellij.openapi.actionSystem.impl.ActionManagerImpl.getAction(ActionManagerImpl.kt:348)
	at com.intellij.openapi.keymap.impl.ui.ActionsTreeUtil.getActions(ActionsTreeUtil.java:445)
	at com.intellij.openapi.keymap.impl.ui.ActionsTreeUtil.createGroup(ActionsTreeUtil.java:185)
	at com.intellij.openapi.keymap.impl.ui.ActionsTreeUtil.addActionImpl(ActionsTreeUtil.java:215)
	at com.intellij.openapi.keymap.impl.ui.ActionsTreeUtil.createGroup(ActionsTreeUtil.java:191)
	at com.intellij.openapi.keymap.impl.ui.ActionsTreeUtil.addActionImpl(ActionsTreeUtil.java:215)
	at com.intellij.openapi.keymap.impl.ui.ActionsTreeUtil.createGroup(ActionsTreeUtil.java:191)
	at com.intellij.openapi.keymap.impl.ui.ActionsTreeUtil.addActionImpl(ActionsTreeUtil.java:215)
	at com.intellij.openapi.keymap.impl.ui.ActionsTreeUtil.createGroup(ActionsTreeUtil.java:191)
	at com.intellij.openapi.keymap.impl.ui.ActionsTreeUtil.createGroup(ActionsTreeUtil.java:174)
	at com.intellij.openapi.keymap.impl.ui.ActionsTreeUtil.createGroup(ActionsTreeUtil.java:132)
	at com.intellij.ide.ui.customization.ActionUrl.getComponent(ActionUrl.java:117)
	at com.intellij.ide.ui.customization.CustomizationUtil.correctActionGroup(CustomizationUtil.java:108)
	at com.intellij.ide.ui.customization.CustomActionsSchema.getOrPut(CustomActionsSchema.kt:345)
	at com.intellij.ide.ui.customization.CustomActionsSchema.getCorrectedActionAsync(CustomActionsSchema.kt:326)
	at com.intellij.ide.ui.customization.CustomActionsSchema.getCorrectedActionAsync(CustomActionsSchema.kt:317)
	at com.intellij.platform.ide.menu.IdeMenuBarHelperKt$createIdeMainMenuActionGroup$group$1.invokeSuspend(IdeMenuBarHelper.kt:211)
	at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:34)
	at kotlinx.coroutines.DispatchedTask.run(DispatchedTask.kt:100)
	at kotlinx.coroutines.scheduling.CoroutineScheduler.runSafely(CoroutineScheduler.kt:610)
	at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.runDefaultDispatcherTask(CoroutineScheduler.kt:1194)
	at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.executeTask(CoroutineScheduler.kt:906)
	at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.runWorker(CoroutineScheduler.kt:775)
	at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.run(CoroutineScheduler.kt:762)

To Reproduce

asd

Expected behavior

ds

Material Theme Version

dsf

IDE

DataGrip

System Info

sdf

Logs/Screenshots

[guiligan]

hey @mallowigi any ETA on this? it is a little annoying as it shows every time a project is opened

[mallowigi]

I unfortunately couldn't reproduce as it doesn't happen consistently. I have a feeling this is specific on some workstations. Can you send me the settings when it happens?

[Emiliorth]

Same here after I exported settings from Webstorm, imported to Idea, turned on online sync. It started in Idea and now it happens in Webstorm. After uninstalling plugin, deleting settings files in Roaming, invalidating caches, bug still reports. Sometimes with Abyss accent, sometimes with Lime or something like that

[mallowigi]

Still happens to me too, but only in Rubymine for whatever reason. So weird because the MTAbyssAccentAction doesn't exist in the code

[gadfly3173]

Based on the current plugin jar and the error stack trace, it can be inferred that starting from IntelliJ 2026.2, the platform makes menu registration asynchronous via coroutines. The plugin registers actions inside the MTAccentActionGroup constructor through registerActions(), using a non-atomic check-then-register pattern that leads to a race condition and duplicate registration:

if (actionManager.getAction(actionId) == null) {
    actionManager.registerAction(actionId, MTDynamicAccentAction(accent))
}

So weird because the MTAbyssAccentAction doesn't exist in the code

Abyss is the Accent Color's name.

[mallowigi]

MTDynamicAccentAction is the real action, the others like MTAbyssAccentAction are no longer in the code, that's the puzzling part. And there's no place where the class is build dynamically.

And the fact that it only happens in my RubyMine and not in my other IDEs, and for some of you is really strange, as if there were some lingering parts of the old version.

[gadfly3173]

The class itself does not exist — the conflict is about the ID string, not the class itself. There are no MTAbyssAccentAction/MTAcidLimeAccentAction classes, only MTDynamicAccentAction. The ID is assembled dynamically inside MTAccentActionGroup.registerActions() (called from the group constructor).

Here is the decompiled MTAccentActionGroup (version 12.1.0), key parts:

class MTAccentActionGroup : DefaultActionGroup(), DumbAware {
    init {
        registerActions()
    }

    private fun registerActions() {
        val actionManager = ActionManager.getInstance()
        for (accent in MTAccents.entries) {
            val name = accent.name().split("_").joinToString("") {
                it.lowercase().replaceFirstChar { c -> c.titlecase() }
            }                      // ACID_LIME -> "AcidLime"
            val suffix = if (name == "AtomicPurple") "" else "Accent"
            val actionId = "com.mallowigi.idea.actions.accents.MT$name${suffix}Action"
                                       // -> "com.mallowigi.idea.actions.accents.MTAcidLimeAccentAction"
            if (actionManager.getAction(actionId) == null) {
                actionManager.registerAction(actionId, MTDynamicAccentAction(accent))
            }
        }
    }
}

Therefore MTAcidLimeAccentAction is nothing more than a concatenated ID string — the registered instance is always an MTDynamicAccentAction. This matches the error message: '青柠 (青柠)' (class com.mallowigi.idea.actions.accents.MTDynamicAccentAction) — both sides share the exact same class. The bundle key action.com.mallowigi.idea.actions.accents.MTAbyssAccentAction.text is just a message key; it reuses the old naming scheme, but that does not mean the class exists.

As for the “only happens in RubyMine” issue: this is a classic race condition with getAction(id) == null + registerAction(...) — it is non-deterministic and depends on which menu-building coroutine reaches convertGroupStub first at startup. Since both conflicting sides are MTDynamicAccentAction and originate from the same plugin, it means the same new version is being registered twice, not a conflict between an old static action and a new dynamic one.