#190 Add Java 25 Support

[jimbethancourt]

Adding Java 25 support.

Summary by CodeRabbit

• New Features

  • Added Java 25 code analysis support on Java 25 and newer runtimes.
  • Java 25 parsing is selected automatically; older runtimes continue using compatible parsers.
  • CLI and packaged tools retain Java 25 analysis support.

• Bug Fixes

  • Improved analysis of Java 25 language features, with fallback to the standard parser if Java 25 parser initialization fails.
  • Improved reliability when reading Git history involving deleted files.

• Documentation

  • Updated prerequisites and usage guidance for Java 17 and Java 25 environments.
  • Clarified that Java 25 parser activation requires no configuration.

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ℹ️ Recent review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Advanced

Run ID: db9fa60f-6bfe-4af2-b07e-0928ffb570ce

📥 Commits

Reviewing files that changed from the base of the PR and between 978bfe6 and 15c6bc9.

📒 Files selected for processing (5)

• codebase-graph-builder/src/main/java/org/hjug/graphbuilder/graphbuilder/Java25ParserFactory.java
• codebase-graph-builder/src/main/java/org/hjug/graphbuilder/graphbuilder/JavaSourceFileGraphBuilder.java
• codebase-graph-builder/src/main/java25/org/hjug/graphbuilder/graphbuilder/Java25ParserFactory.java
• codebase-graph-builder/src/test/resources/java25SrcDirectory/com/example/java25/FlexibleConstructorBody.java
• report/src/main/java/org/hjug/refactorfirst/report/SimpleHtmlReport.java

🚧 Files skipped from review as they are similar to previous changes (5)

• codebase-graph-builder/src/test/resources/java25SrcDirectory/com/example/java25/FlexibleConstructorBody.java
• codebase-graph-builder/src/main/java25/org/hjug/graphbuilder/graphbuilder/Java25ParserFactory.java
• report/src/main/java/org/hjug/refactorfirst/report/SimpleHtmlReport.java
• codebase-graph-builder/src/main/java/org/hjug/graphbuilder/graphbuilder/JavaSourceFileGraphBuilder.java
• codebase-graph-builder/src/main/java/org/hjug/graphbuilder/graphbuilder/Java25ParserFactory.java

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📝 Walkthrough

Walkthrough

The change adds Java 25 parser support through a JEP 238 multi-release jar. It updates parser selection, packaging, CI, release checks, callers, tests, documentation, and Git fixture cleanup.

Changes

Java 25 analysis

Layer / File(s)	Summary
Multi-release parser selection and validation codebase-graph-builder/src/main/java/..., codebase-graph-builder/src/main/java25/..., codebase-graph-builder/src/test/..., codebase-graph-builder/src/test/resources/...	The base factory returns an empty Optional. The Java 25 variant constructs Java25Parser and returns an empty Optional if construction fails. JavaSourceFileGraphBuilder uses the factory before the standard parser. Tests cover selection, API parity, jar shadowing, and Java 25 source analysis.
Multi-release packaging and build validation .github/workflows/*, codebase-graph-builder/pom.xml, cli/pom.xml, pom.xml, refactor-first-maven-plugin/pom.xml	The build compiles Java 25 sources into META-INF/versions/25 and sets Multi-Release: true. It adds rewrite-java-25, updates build tooling, runs Java 17 and Java 25 jobs, and checks release artifacts.
Runtime-driven callers and tests cost-benefit-calculator/..., report/...	CycleRanker passes GraphBuilderConfig and validates the repository path. Tests cover graph generation and report execution without parser-forcing arguments.
Java 25 documentation and implementation records AGENTS.md, CLAUDE.md, README.md, plans/*	Documentation and plans describe parser activation, runtime requirements, packaging constraints, tests, and release checks.

Git fixture cleanup reliability

Layer / File(s)	Summary
Git test repository and cleanup change-proneness-ranker/src/test/java/org/hjug/git/GitLogReaderTest.java	The Git test reopens the repository before reading deleted trees. Loose-object deletion now handles read-only files, retries, and missing files.

Priority: ➖ Normal

Estimated code review effort: 4 (Complex) | ~60 minutes

Change: Feature

Sequence Diagram(s)

sequenceDiagram
  participant JavaSourceFileGraphBuilder
  participant Java25ParserFactory
  participant JavaParser
  JavaSourceFileGraphBuilder->>Java25ParserFactory: createJava25Parser()
  Java25ParserFactory-->>JavaSourceFileGraphBuilder: Java25Parser or empty Optional
  JavaSourceFileGraphBuilder->>JavaParser: Build standard parser when factory result is empty

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Merge Risk: 🔵 Low · up to 15c6b

Java 25 support may be mergeable, but the parser plan and a regression test still need owner confirmation before these earlier concerns can be closed.

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 61.11% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 126 functions across 26 files.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly identifies the main change: adding Java 25 support. The draft label is additional status information but does not make the title unclear.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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[jimbethancourt]

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[jimbethancourt]

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🤖 Completed: Fix CodeRabbit issues in PR #218 — View commit 4a8d324

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🤖 Completed: Fix pre-merge checks in PR #218 — View commit 15c6bc9

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