Worked on stabilizing the RoutineLoad feature in the crossoverJie/starrocks repository by addressing a critical deadlock issue during transaction abort scenarios. Focused on Java concurrency and transaction management, the solution involved reordering the transaction state transformation to ensure the write lock was acquired before any state changes, effectively eliminating a race condition that could cause RoutineLoad tasks to become stuck. This bug fix improved the reliability of data ingestion pipelines for streaming workloads, reducing the risk of outages and simplifying incident response. The work demonstrated a methodical approach to concurrency-safe transaction handling and contributed to more predictable system behavior.