Add Java primitive wrapper classes

[dlunch]

Summary

• add Number and the missing primitive wrapper classes with Java 1.2-compatible APIs
• expand Integer and add primitive Class objects used by wrapper TYPE fields
• cover parsing, comparisons, character classification, and runtime type integration

Validation

• cargo fmt --all -- --check
• cargo test --workspace
• cargo clippy --workspace --all-targets -- -D warnings

[codecov]

Codecov Report

❌ Patch coverage is 90.01869% with 267 lines in your changes missing coverage. Please review.
✅ Project coverage is 85.35%. Comparing base (fe5d116) to head (366ea34).
⚠️ Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
java_runtime/src/classes/java/lang/long.rs	83.37%	62 Missing ⚠️
java_runtime/src/classes/java/lang/integer.rs	84.51%	57 Missing ⚠️
java_runtime/src/classes/java/lang/character.rs	93.26%	47 Missing ⚠️
java_runtime/src/classes/java/lang/short.rs	81.53%	36 Missing ⚠️
java_runtime/src/classes/java/lang/byte.rs	86.63%	27 Missing ⚠️
java_runtime/src/classes/java/lang/double.rs	94.39%	18 Missing ⚠️
java_runtime/src/classes/java/lang/float.rs	94.46%	18 Missing ⚠️
java_runtime/src/classes/java/lang/boolean.rs	99.08%	1 Missing ⚠️
jvm/src/runtime/java_lang_class.rs	93.33%	1 Missing ⚠️

Additional details and impacted files

@@ Coverage Diff @@## main #176 +/- ##
==========================================
+ Coverage 83.89% 85.35% +1.46% 
==========================================
Files 173 181 +8 Lines 12939 15569 +2630 ==========================================
+ Hits 10855 13289 +2434 - Misses 2084 2280 +196 

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[Copilot]

Pull request overview

This PR extends RustJava’s Java runtime library to include Java 1.2-compatible primitive wrapper classes (plus Number) and integrates primitive Class objects used by wrapper TYPE fields, with a broad set of runtime tests validating parsing, formatting, comparisons, and reflection behavior.

Changes:

• Add java/lang/Number and implement missing primitive wrapper classes (Boolean, Byte, Short, Long, Float, Double, Character) plus major expansion of Integer.
• Add primitive Class construction and primitive-aware logic for Class.getName, Class.isPrimitive, and Class.isAssignableFrom.
• Add comprehensive async integration tests covering wrapper APIs, boundaries, errors, GC stability of TYPE, and Number/Comparable metadata.

Reviewed changes

Copilot reviewed 25 out of 25 changed files in this pull request and generated 14 comments.

Show a summary per file

File	Description
jvm/src/runtime/java_lang_class.rs	Adds primitive Class construction and stricter name decoding used by runtime java/lang/Class.
java_runtime/src/loader.rs	Registers new runtime class prototypes so wrappers/Number resolve at runtime.
java_runtime/src/classes/java/lang.rs	Wires new wrapper modules into the java.lang runtime module exports.
java_runtime/src/classes/java/lang/number.rs	Adds abstract Number base class with concrete byteValue/shortValue and abstract numeric conversions.
java_runtime/src/classes/java/lang/integer.rs	Expands Integer to a Java-1.2-like API surface (parsing, decode, getInteger, formatting, comparisons, TYPE/MIN/MAX).
java_runtime/src/classes/java/lang/boolean.rs	Implements Boolean wrapper (TRUE/FALSE/TYPE, parsing/valueOf, getBoolean).
java_runtime/src/classes/java/lang/byte.rs	Implements Byte wrapper APIs including parsing/decoding, constants, comparisons, and TYPE.
java_runtime/src/classes/java/lang/short.rs	Implements Short wrapper APIs including parsing/decoding, constants, comparisons, and TYPE.
java_runtime/src/classes/java/lang/long.rs	Implements Long wrapper APIs including parse/decode/getLong, formatting helpers, comparisons, and TYPE.
java_runtime/src/classes/java/lang/float.rs	Implements Float wrapper APIs including parse/valueOf, bit conversions, constants, comparisons, and TYPE.
java_runtime/src/classes/java/lang/double.rs	Implements Double wrapper APIs including parse/valueOf, bit conversions, constants, comparisons, and TYPE.
java_runtime/src/classes/java/lang/character.rs	Implements Character wrapper APIs including classification, case mapping, digit/numeric helpers, constants, comparisons, and TYPE.
java_runtime/src/classes/java/lang/comparable.rs	Defines Comparable.compareTo(Object) as an abstract method and corrects interface access flags.
java_runtime/src/classes/java/lang/class.rs	Adds Class.isPrimitive, primitive-aware isAssignableFrom, and null-check for forName; uses JavaLangClass::name.
java_runtime/tests/classes/java/lang/mod.rs	Includes new wrapper/Number test modules in the test suite.
java_runtime/tests/classes/java/lang/test_class.rs	Adds tests for primitive Class objects, primitive rejection in forName, assignability rules, and GC stability of TYPE.
java_runtime/tests/classes/java/lang/test_number.rs	Verifies Number is abstract and wrappers implement Number/Comparable/Serializable as expected.
java_runtime/tests/classes/java/lang/test_integer.rs	Expands coverage for Integer APIs (radix parsing, decode, formatting, compareTo errors, getInteger defaults, TYPE stability).
java_runtime/tests/classes/java/lang/test_boolean.rs	Adds coverage for Boolean parsing, constants, getBoolean, and Java 1.2 API exclusions.
java_runtime/tests/classes/java/lang/test_byte.rs	Adds coverage for Byte parsing/decoding, overflow errors, comparisons, and TYPE.
java_runtime/tests/classes/java/lang/test_short.rs	Adds coverage for Short parsing/decoding, overflow errors, comparisons, and TYPE.
java_runtime/tests/classes/java/lang/test_long.rs	Adds coverage for Long parsing/decoding/getLong, formatting, overflow errors, comparisons, and TYPE.
java_runtime/tests/classes/java/lang/test_float.rs	Adds coverage for Float parsing, formatting, NaN/Infinity, bits conversions, comparisons, constants, and TYPE.
java_runtime/tests/classes/java/lang/test_double.rs	Adds coverage for Double parsing, formatting, NaN/Infinity, bits conversions, comparisons, constants, and TYPE.
java_runtime/tests/classes/java/lang/test_character.rs	Adds coverage for Character constants, classification, radix helpers, surrogate handling, and compareTo error behavior.

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