Document VMType Hierarchy - Value 5

[LSantha]

Concept: VMType Hierarchy

Value: 5 (Critical - Type system core)

What it is: Internal type representation system with VmType, VmClass, VmArray, VmPrimitive

Key files:

• core/src/core/org/jnode/vm/classmgr/VmType.java
• core/src/core/org/jnode/vm/classmgr/VmClass.java

Bridges: Type system, JIT compiler, Classloader

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Documentation Requirements

For Value 5 (Critical):

1. Update ALL 4 sections of the index (index.md):

   • Pages Table: Add new page in alphabetical order
   • Concepts → Pages: Add the page name. Currently "VmType" is mentioned in [[Type-System-Internals]]
   • Source Path → Pages: Map core/src/core/org/jnode/vm/classmgr/ to the new page
   • Task Routing: Add to relevant developer task categories with meaningful routing ideas (1-3 entries)

2. Update Glossary: Add 1-sentence definition for any new project-specific term

3. Broader Search: Search for related "Helper", "Manager", "Layout", or "Constants" classes (e.g., VmArray, VmPrimitive, type constants)

Skill Reference

Use update-wiki skill for wiki maintenance workflow

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Related Concepts (from index.md)

• [[Type-System-Internals]]
• [[Object-Layout]]
• [[JIT-Compilers]]

[LSantha]

/oc Please proceed with this task.

[LSantha]

/oc Please proceed with this task.

[opencode-agent]

Done. Created VmType-Hierarchy.md documenting the class hierarchy (VmType → VmClassType → VmNormalClass/VmInterfaceClass/VmArrayClass, plus VmPrimitiveClass), VmArray (separate runtime header), JvmType constants, and all key behaviors. Updated index.md (Pages, Concepts → Pages, Source Path → Pages, Task Routing), Glossary.md (added VmArray entry), and Changelog.md.

Wiki page: https://github.com/LSantha/jnode_ai/wiki/VmType-Hierarchy

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[LSantha]

/oc Please proceed with this task.

[opencode-agent]

The task is already complete. Issue #139 ("Document VMType Hierarchy - Value 5") is closed, the VmType-Hierarchy.md page exists in the wiki with proper index updates, and the remote push verified.

Wiki page: https://github.com/LSantha/jnode_ai/wiki/VmType-Hierarchy

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