Oct 24, 2026 · Backend Development

Java Crash Debug: EXCEPTION_ACCESS_VIOLATION in plcommpro.dll – JVM Flags, GC, JDK Downgrade

The author documents a step-by-step troubleshooting journey for a Java service crashing with EXCEPTION_ACCESS_VIOLATION (0xc0000005) in plcommpro.dll, trying minidump enablement, JDK downgrade from 8u241 to 8u191, JIT compilation exclusion for Hibernate, heap sizing, GC switch to ParallelOldGC, and DLL version checks, with each fix extending uptime but not fully resolving the native crash.

EXCEPTION_ACCESS_VIOLATIONGC tuningHibernate

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Java Crash Debug: EXCEPTION_ACCESS_VIOLATION in plcommpro.dll – JVM Flags, GC, JDK Downgrade