Lambda in CodeLocatorApplicationInitializedListener retains released EditorImpl

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#43 opened on Nov 27, 2023 1 comment 0 reactions 0 assignees View on GitHub

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Assessment

Difficulty: 4/5
Estimated time: 3-5 days
Newbie friendliness: 35/100

Issue type: Bug
Clarity: Needs clarification
Activity status: Stale
Tech stack: java
Domain: tooling

Research direction

Start at CodeLocatorApplicationInitializedListener, especially the lambda retaining editor and the editorPathMap field shown in the heap paths. Trace how listeners and map entries are registered and released, then reproduce the retained disposed EditorImpl objects; done means released editors and their disposed PsiAwareTextEditorComponent and CaretModelImpl are no longer reachable.

Written by the indexing model from the issue text.

Description

And in the subttree of the released editors there are references to disposed instances of PsiAwareTextEditorComponent, CaretModelImpl. Could you please take a look.

editor field:

     239MB/1 objects          | | | arg$1: com.intellij.openapi.editor.impl.EditorImpl
     238MB/1 objects          | | | myDocument: com.intellij.openapi.editor.impl.DocumentImpl
     238MB/1 objects          | | | myDocumentListeners: com.intellij.openapi.editor.impl.LockFreeCOWSortedArray
     238MB/1 objects          | | | value: [Lcom.intellij.openapi.editor.event.DocumentListener;
    68.5MB/4 objects          | | | []: com.bytedance.tools.codelocator.listener.CodeLocatorApplicationInitializedListener$5$1
    68.5MB/4 objects          | | | val$editor: com.intellij.openapi.editor.impl.EditorImpl
    66.5MB/4 objects          | | | myPanel: javax.swing.JPanel
    66.5MB/4 objects          | | | parent: com.intellij.openapi.fileEditor.impl.text.PsiAwareTextEditorComponent(disposed)

editorPathMap field:

   65.0MB/1 objects          +-this$1: com.bytedance.tools.codelocator.listener.CodeLocatorApplicationInitializedListener$5
    65.0MB/1 objects          | editorPathMap: java.util.HashMap
    65.0MB/1 objects          | table: [Ljava.util.HashMap$Node;
   55.4MB/43 objects          | []: java.util.HashMap$Node
   34.9MB/38 objects          | +-key: com.intellij.openapi.editor.impl.EditorImpl
    22.0MB/5 objects          | | myCaretModel: com.intellij.openapi.editor.impl.CaretModelImpl(disposed)

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