Worked on the bazelbuild/bazel repository to enhance Java build dependency validation by addressing an edge case involving java_import targets. Focused on improving build reliability, the developer implemented an integration test using shell scripting to ensure Bazel fails when a srcjar references a non-existent file. This change included updating validation logic so that the srcjar, if present, is checked within the validation output group, allowing Blaze to verify file existence. By targeting this specific bug, the work reduced the risk of hidden dependency issues, improved developer feedback, and contributed to more stable and predictable Java builds within Bazel’s build system.