Improve plugin management

[hohwille]

As a devonfw-ide user, I want to have my «IDE» plugins working no matter if I update the «IDE» tool or the devonfw-ide product so that I can continue to work seamlessly.
Here examples for «IDE» are eclipse, intellij, vscode, android-studio.

However, we currently face the following issues:

• if devonfw-ide is upgraded from a version before 2023.07.001 to that or a later version the plugin directory has been relocated and unless the «IDE» gets updated and reinstalled, the plugins are missing. A workaround is to manually delete software/«IDE» and let devonfw-ide reinstall it - see also issue #1147
• if devonfw-ide is updating the version of «IDE» it will remove software/«IDE» and reinstall the new version in this place. After that the plugins are installed again. This however, was implemented before issue #1147 and does not remove/uninstall the according plugin or detect if the exact same plugin is already installed. Here we need to understand and distinguish between plugins that have been installed automatically be devonfw-ide and those that have been installed manually. For manually installed plugins the current behavior is fine as those are now preserved and I do not have to reinstall them manually when the «IDE» version changes (what I had to do before issue #1147). However, if the «IDE» version changes in an incompatible way the manually installed plugin can break and in the worst case prevent the start of «IDE». This is not to be changed with this issue and we may only answer to this problem with some documentation but let the user remove the plugin manually in such rare occasion. However, as said before the automatically installation of plugins should be improved such that we first check if the plugin to install is already present and then replace it. I have seen cases with intellij where a new version of the same plugin was then added and as a result Intellij was causing an error with duplicated plugin being present.

[hohwille]

Internal error. Please refer to https://jb.gg/ide/critical-startup-errors
 
java.lang.RuntimeException: Cannot invoke (class=InitializeSonarLintOnStartup, method=appFrameCreated, topic=AppLifecycleListener)
    at com.intellij.util.messages.impl.MessageBusImplKt.invokeListener(MessageBusImpl.kt:676)
    at com.intellij.util.messages.impl.MessageBusImplKt.deliverMessage(MessageBusImpl.kt:422)
    at com.intellij.util.messages.impl.MessageBusImplKt.pumpWaiting(MessageBusImpl.kt:401)
    at com.intellij.util.messages.impl.MessageBusImplKt.access$pumpWaiting(MessageBusImpl.kt:1)
    at com.intellij.util.messages.impl.MessagePublisher.invoke(MessageBusImpl.kt:460)
    at jdk.proxy2/jdk.proxy2.$Proxy55.appFrameCreated(Unknown Source)
    at com.intellij.idea.IdeStarter.openProjectIfNeeded$suspendImpl(IdeStarter.kt:89)
    at com.intellij.idea.IdeStarter.openProjectIfNeeded(IdeStarter.kt)
    at com.intellij.idea.IdeStarter$start$2.invokeSuspend(IdeStarter.kt:69)
    at com.intellij.idea.IdeStarter$start$2.invoke(IdeStarter.kt)
    at com.intellij.idea.IdeStarter$start$2.invoke(IdeStarter.kt)
    at kotlinx.coroutines.intrinsics.UndispatchedKt.startUndispatchedOrReturn(Undispatched.kt:78)
    at kotlinx.coroutines.CoroutineScopeKt.coroutineScope(CoroutineScope.kt:264)
    at com.intellij.idea.IdeStarter.start$suspendImpl(IdeStarter.kt:66)
    at com.intellij.idea.IdeStarter.start(IdeStarter.kt)
    at com.intellij.ide.bootstrap.ApplicationLoader.initApplicationImpl(ApplicationLoader.kt:90)
    at com.intellij.ide.bootstrap.ApplicationLoader$initApplicationImpl$1.invokeSuspend(ApplicationLoader.kt)
    at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:33)
    at kotlinx.coroutines.DispatchedTask.run(DispatchedTask.kt:106)
    at kotlinx.coroutines.scheduling.CoroutineScheduler.runSafely(CoroutineScheduler.kt:584)
    at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.executeTask(CoroutineScheduler.kt:793)
    at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.runWorker(CoroutineScheduler.kt:697)
    at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.run(CoroutineScheduler.kt:684)
Caused by: java.lang.IllegalStateException: java.lang.IllegalStateException: Multiple plugins found
    at org.sonarlint.intellij.core.EmbeddedPlugins.findEmbeddedPlugin(EmbeddedPlugins.kt:120)
    at org.sonarlint.intellij.core.EmbeddedPlugins.getEmbeddedPluginsForConnectedMode(EmbeddedPlugins.kt:72)
    at org.sonarlint.intellij.core.BackendService.initialize(BackendService.kt:97)
    at org.sonarlint.intellij.core.BackendService.startOnce(BackendService.kt:80)
    at org.sonarlint.intellij.InitializeSonarLintOnStartup.appFrameCreated(InitializeSonarLintOnStartup.kt:28)
    at com.intellij.util.messages.impl.MessageBusImplKt.invokeMethod(MessageBusImpl.kt:699)
    at com.intellij.util.messages.impl.MessageBusImplKt.invokeListener(MessageBusImpl.kt:663)
    ... 22 more
Caused by: java.lang.IllegalStateException: Multiple plugins found
    at org.sonarlint.intellij.core.EmbeddedPlugins.findEmbeddedPlugin(EmbeddedPlugins.kt:117)
    ... 28 more
 
-----
Your JRE: 17.0.7+7-b1000.6 amd64 (JetBrains s.r.o.)
D:\projects\test\software\intellij\jbr

[hohwille]

A colleague had the same error today with IntelliJ so it is not only a feature request but a bug:

2023-12-15 14:31:30,912 [  28395] SEVERE - #c.i.o.u.ObjectTree - java.lang.IllegalStateException: Multiple plugins found
java.lang.IllegalStateException: java.lang.IllegalStateException: Multiple plugins found