branch-4.0: [fix](jdbc) Fix JNI global reference leak in JdbcConnector close #58574 #58753
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…8574) ## Problem JNI Global References may not be deleted when `JdbcConnector::close()` fails midway due to early returns from `RETURN_IF_ERROR` macros. This prevents Java GC from collecting `BaseJdbcExecutor` and its associated `ResultSet` objects, causing old generation heap to grow to 99%+. ## Solution - C++: Always delete all three Global References regardless of Java close() failure - Java: Always clear member variable references (`resultSet`, `stmt`, `conn`) in finally block
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yiguolei
approved these changes
Dec 11, 2025
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Cherry-picked from #58574