Wiki: Create Spoke Page for Core - Exceptions-Implementation

[LSantha]

Goal

Document how JNode implements Java exception handling at the VM and JIT levels.

Instructions

1. Use the Skill: Apply the update-wiki skill found in the .opencode/skills/update-wiki/ directory to complete this task.
2. Research: Analyze core/src/core/org/jnode/vm/classmgr/VmExceptions.java, VmCompiledExceptionHandler.java, and VmCompiledCode.java (exception handler table).
3. Content Requirements:
   • Explain how JNode represents the bytecode exception table in compiled native code.
   • Describe the stack unwinding process: how the VM searches for a handler across multiple frames.
   • Explain the defaultExceptionHandler and when it is invoked.
   • Discuss the restrictions on throwing exceptions in @Uninterruptible code.

Refer to WIKI_SCHEMA.md and AGENTS.md for overarching project rules.

[LSantha]

/oc Please use the updated update-wiki skill in .opencode/skills/update-wiki/SKILL.md. Ensure you follow Step 0: Initialization to clone the wiki repository before making any changes.

[LSantha]

/oc fix this

[opencode-agent]

The wiki page has been created and index updated. The commit is ready in the .wiki repository.

Summary:

• Created .wiki/Exceptions-Implementation.md documenting:
  • Exception table representation in compiled native code (VmCompiledExceptionHandler)
  • Stack unwinding process via VmSystem.findThrowableHandler()
  • Default exception handler behavior and invocation
  • @Uninterruptible code restrictions on throwing exceptions
• Updated .wiki/index.md with new page entries in all four tables

The wiki repository commit is ready. The automatic push mechanism should handle updating the remote wiki.

https://github.com/LSantha/jnode_ai/wiki/Exceptions-Implementation

opencode session  |  github run

[LSantha]

/oc fix this

[LSantha]

/oc fix it

[LSantha]

/oc DO NOT IGNORE THIS: The wiki repository DOES NOT have an automatic push mechanism. You MUST manually execute the following commands in your final step or your work will be LOST:

cd .wiki
git add .
git commit -m "Wiki: Add Exceptions-Implementation spoke page"
git push

I am checking the remote logs. If I don't see a push from your container, the task is considered FAILED. Use the updated update-wiki skill and DO NOT trust the system to push for you.

[opencode-agent]

Wiki page created and pushed successfully.

Summary:

• Created .wiki/Exceptions-Implementation.md documenting:
  • Exception table representation in compiled native code (VmCompiledExceptionHandler)
  • Stack unwinding process via VmSystem.findThrowableHandler()
  • Default exception handler behavior and invocation
  • @Uninterruptible code restrictions on throwing exceptions
• Updated .wiki/index.md with new page entries in all four tables

https://github.com/LSantha/jnode_ai/wiki/Exceptions-Implementation

opencode session  |  github run