8224852: JVM crash on watched field access from native code

[lmesnik]

The problem happens when jni access fields while the last java frame is still compiled. The field access/modification events require interp only mode and compiled frame is not expected. However, It might happens if thread switched to interponly mode while it is in JNI code. The deoptimization is triggered but each frame is really changed only execution returns to it. So last java frame was not executed and thus is still compiled.

The original example doesn't reproduce issue because of JDK changes but the problem exists in JVMTI. So I implemented reliable regression test.

The location should be zero for JNI access.

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Issue

• JDK-8224852: JVM crash on watched field access from native code (Bug - P3)

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