Liz Looney focused on enhancing Java build dependency validation in the bazelbuild/bazel repository, addressing a subtle but impactful issue in Bazel’s handling of java_import targets. She implemented an integration test using shell scripting to ensure Bazel fails when a srcjar references a non-existent file, thereby improving the reliability of dependency checks. By refining the validation logic and output, Liz enabled Blaze to surface missing files more clearly during builds, which helps reduce CI flakiness and provides more actionable feedback to developers. Her work leveraged build systems expertise and testing skills to strengthen Java project stability within Bazel’s infrastructure.