[IntelliJ] Uncaught Exception java.lang.IllegalArgumentException: Cannot add an action twice: Upgrade Java Runtime and Frameworks (Upgrade Java runtime and framework versions) (com.microsoft.azure.toolkit.intellij.appmod.javaupgrade.action.JavaUpgradeCont

IntelliJ build version: 2025.3.3 IU-253.31033.145
OS: Windows 11
JDK: JetBrains s.r.o. 21.0.10
Plugin version: 3.97.3-2025.3
Additional Info: None
Parent component:

com.intellij.openapi.wm.impl.IdeRootPane[,8,0,2364x1354,layout=com.intellij.openapi.wm.impl.IdeRootPane$CustomHeaderRootLayout,alignmentX=0.0,alignmentY=0.0,border=,flags=449,maximumSize=,minimumSize=,preferredSize=]

Error message:

IdeaLoggingEvent[message=null, throwable=java.lang.IllegalArgumentException: Cannot add an action twice: Upgrade Java Runtime and Frameworks (Upgrade Java runtime and framework versions) (com.microsoft.azure.toolkit.intellij.appmod.javaupgrade.action.JavaUpgradeContextMenuAction)
	at com.intellij.openapi.actionSystem.DefaultActionGroup.newDuplicateActionAddedException(DefaultActionGroup.java:146)
	at com.microsoft.azure.toolkit.intellij.appmod.javaupgrade.action.UpgradeActionRegistrar.tryAddToGroup(UpgradeActionRegistrar.java:100)
	at com.microsoft.azure.toolkit.intellij.appmod.javaupgrade.action.UpgradeActionRegistrar.discoverAndRegisterAction(UpgradeActionRegistrar.java:63)
	at com.microsoft.azure.toolkit.intellij.appmod.javaupgrade.action.UpgradeActionRegistr

Start with UpgradeActionRegistrar.discoverAndRegisterAction and tryAddToGroup, which the stack trace identifies as the registration path. Inspect how JavaUpgradeContextMenuAction is discovered and registered, then reproduce the IntelliJ error to confirm when the action is added twice. Done means the duplicate-action exception no longer occurs while preserving the upgrade action.