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Window freezing

Accessing to an unreferenced static sub-class freeze the window.

To Reproduce

Steps to reproduce the behavior (or see the video below):

  1. Make sure your default decompiler is set to Fernflower ! (this is the configuration used in the example). You can also launch Recaf with a terminal to see logs.
  2. Open sample BugRecaf-1.jar.
  3. Open bugrecaf.util.Utils class & decompile it with CFR
  4. Right-click on Yj.z, and click on Goto definition.
  5. The class Yj is normally successfully opened.
  6. Close opened tabs.
  7. Open bugrecaf.freeze.Constants class.
  8. The bugrecaf/Yj class is now unreferenced (see it in logs).
  9. Now, repeat steps 3 and 4.
  10. The window freezes.

Additionnal information : Yj is a static sub-class of Constants. The <undefinedtype> of the field y in Constants, is Yj. This problem only happens with Fernflower: CFR has no problems.

These classes were extracted from an obfuscated jar file.

The example video :

Issue Analytics

  • State:closed
  • Created 3 years ago
  • Comments:10 (7 by maintainers)

github_iconTop GitHub Comments

win32kbasecommented, Oct 28, 2021

Thanks for reporting this. I think I found the problem, I’ve fixed it locally but I want to make sure that it doesn’t occur for anybody before pushing to upstream. Would you guys mind trying out my JAR and see if it happens anymore for you? Here’s a compiled JAR: or if you want to compile it yourself:

xtherkcommented, Oct 26, 2021

I’ve reproduced this problem and I will try to solve it

Read more comments on GitHub >

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