Worked on the eclipse-openj9/openj9 repository, focusing on enhancing runtime stability by addressing a critical bug in the Code Cache subsystem. Implemented a fix in C++ that correctly resets trampoline pointers to the top of the trampoline space after a code cache flush, resolving an issue where segments were incorrectly marked as full. This adjustment improved the reliability of the JIT cache and ensured proper memory management. The solution was validated through targeted regression tests, demonstrating a strong grasp of compiler internals and low-level systems programming. The work emphasized careful attention to detail and a methodical approach to complex runtime issues.