Dynamic reloading support

[metalbass]

I have created a new plugin from this template and did no relevant changes to it.

I want this to be a Dynamic plugin, so I can use Auto-reload to reduce iteration cycle times.

To try auto-reloading I do:

• Use the built-in "Run Plugin" configuration. It calls gradle runIde. Run, not debug.
• Run a new configuration that calls gradle buildPlugin

Which makes buildPlugin fail in the prepareSandbox step. Check attached log

I looked with powertoys's File Locksmith, and it tells me that Java.exe has the file (which is the sandboxed pycharm instance).

Additional things I tried but didn't work:

• I saw in the Auto-reload page that buildSearchableOptions needs to be set to false.
• Disabled Plugin DevKit, since I'm not using it, in case that was conflicting somehow.
• Removed toolWindow from plugin.xml, in case that was not a dynamic extension.
• Tried reverting using Pycharm to let it use IDEA instead.

In case it's related, I'm using IntelliJ IDEA 2024.3.4.1 (Ultimate Edition), Build #IU-243.25659.59, built on March 5, 2025

Relevant log output or stack trace

Execution failed for task ':prepareSandbox'.
> Could not copy file 'C:\Users\metalbass\MemoryGrapher\build\libs\MemoryGrapher-0.0.1.jar' to 'C:\Users\metalbass\MemoryGrapher\build\idea-sandbox\PC-2024.3.2\plugins\MemoryGrapher\lib\MemoryGrapher-0.0.1.jar'.
   > C:\Users\metalbass\MemoryGrapher\build\idea-sandbox\PC-2024.3.2\plugins\MemoryGrapher\lib\MemoryGrapher-0.0.1.jar (The requested operation cannot be performed on a file with a user-mapped section open)

Steps to reproduce

• Use this template to create a new project
• Clone
• Use the built-in "Run Plugin" configuration. It calls gradle runIde. Run, not debug.
• Run a new configuration that calls gradle buildPlugin

Gradle IntelliJ Plugin version

243.25659.59

Gradle version

8.10.2

Operating System

Windows

Link to build, i.e. failing GitHub Action job

No response

[tolland]

Yeah, it seems like the plugin generated off the template project in intellij will reload:

but as soon as you add any code to it, it fails to reload

there is no code from the plugin that is mentioned in the heap dump report

heap_dump_report.txt

seems like its related to this:

================= DISPOSED OBJECTS ================
Count of disposed-but-strong-referenced objects: 1
  1 com.intellij.util.messages.impl.MessageBusConnectionImpl

Disposed-but-strong-referenced dominator object count: 1
Disposed-but-strong-referenced dominator sub-graph size: 48B
     48B - 1 com.intellij.util.messages.impl.MessageBusConnectionImpl

Disposed but still strong-referenced objects: 1 com.intellij.util.messages.impl.MessageBusConnectionImpl, most common paths from GC-roots:
Root 1:
[    1/100%/   32B] 10.6MB          1   ROOT: Static field: com.intellij.openapi.project.ProjectCoreUtil.theOnlyProject
[    1/100%/   32B] 10.6MB          1   (root): com.intellij.openapi.project.impl.ProjectImpl
[    1/100%/   32B] 44.5KB          1   messageBus: com.intellij.util.messages.impl.CompositeMessageBus
[    1/100%/   32B] 19.1KB          1   subscribers: java.util.concurrent.ConcurrentLinkedQueue
[    1/100%/   32B]    72B          1   tail: java.util.concurrent.ConcurrentLinkedQueue$Node
[    1/100%/   32B]    48B          1 * item: com.intellij.util.messages.impl.MessageBusConnectionImpl (disposed)