
Justin Won developed multi-release JAR support for the JarJar utility within the bazelbuild/bazel repository, focusing on enhancing compatibility with Java 9+ multi-release structures. He refined class name handling and entry validation logic, addressing runtime class resolution issues and improving packaging correctness for downstream users. His work involved targeted updates to build tooling and Java packaging processes, laying the groundwork for broader integration with third-party dependencies. Although no bugs were fixed during this period, Justin’s contributions strengthened the stability of the build system and demonstrated proficiency in Java, build tools, and cross-repository coordination, reflecting a focused and technically sound engineering effort.
March 2026: Delivered Multi-Release JAR support in JarJar utility for bazelbuild/bazel, improving compatibility with multi-release structures by adjusting class name handling and entry validation. The change reduces runtime class resolution issues and strengthens packaging correctness for users relying on Java 9+ multi-release JARs. Work focused on repository bazelbuild/bazel; notable commit aaa295a09995b28c6f00507d64a694514767294f updating jarjar for multi-release support (partial commit for third_party/*, see #28946). Future work will extend third_party/* integration and complete multi-release coverage. No major bugs fixed this month; stability improvements and groundwork for broader compatibility were completed. Technologies demonstrated: Java packaging, JarJar tool refinements, build tooling, and cross-repo coordination.
March 2026: Delivered Multi-Release JAR support in JarJar utility for bazelbuild/bazel, improving compatibility with multi-release structures by adjusting class name handling and entry validation. The change reduces runtime class resolution issues and strengthens packaging correctness for users relying on Java 9+ multi-release JARs. Work focused on repository bazelbuild/bazel; notable commit aaa295a09995b28c6f00507d64a694514767294f updating jarjar for multi-release support (partial commit for third_party/*, see #28946). Future work will extend third_party/* integration and complete multi-release coverage. No major bugs fixed this month; stability improvements and groundwork for broader compatibility were completed. Technologies demonstrated: Java packaging, JarJar tool refinements, build tooling, and cross-repo coordination.

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