Worked on the soot-oss/SootUp repository to enhance regression coverage by addressing a potential trap serialization issue in the GitRepository component. Developed a targeted failing regression test within JimpleSerializationTest.java, which sets up an analysis input location, retrieves a specific method, and invokes toString() on its body to reliably reproduce the bug. This approach improved the stability and debuggability of serialization paths, enabling earlier detection and isolation of related issues. Utilized Java for both bytecode analysis and unit testing, ensuring that future serialization bugs can be identified and resolved more efficiently through improved test coverage and traceable commit history.