[neonjava]

Summary

• Parse a bounded, streaming subset of G1 Unified GC pause summaries into typed Rust events with GC ID, category, heap bytes, duration nanoseconds, optional uptime, and source context.
• Add jvmdelta gc inspect with category and skipped-line counts. Malformed supported summaries and unreadable files exit nonzero.
• Add synthetic JDK 17/21-style fixtures, selected real JDK 25 output, format support documentation, and tests.

Verification

• cargo fmt --all -- --check passed.
• cargo clippy --workspace --all-targets -- -D warnings passed.
• cargo test --workspace passed: 13 tests.
• cargo build --workspace --release passed.
• cargo run -p jvmdelta-cli -- --help passed.
• cargo run -p jvmdelta-cli -- gc inspect tests/fixtures/jdk25-g1-real.log passed: 2 supported events and 4 unrelated entries skipped.
• Negative CLI paths returned exit status 1 with line-numbered malformed input and file-open errors.
• The 10,000-event stress test passed.

Limits

• JDK 17 and 21 fixtures are synthetic because those JDKs are not installed locally. A JDK 25 fixture was captured from a local G1 run.
• Only selected info/gc G1 summary syntax is interpreted. This does not implement comparison, regression detection, JFR, or reports.

[coderabbitai]

Important

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• Run ID: 01761d81-431c-4ffd-b82c-94e6a9253d48

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