babsingh opened a new pull request #1951: HDFS-15270. Account for *env == NULL in hdfsThreadDestructor URL: https://github.com/apache/hadoop/pull/1951 OpenJ9 JVM properly terminates the thread before hdfsThreadDestructor is invoked. JNIEnv is a mirror of J9VMThread in OpenJ9. After proper thread termination, accessing JNIEnv in hdfsThreadDestructor (*env)->GetJavaVM, yields a SIGSEGV since *env is NULL after thread cleanup is performed. The main purpose of hdfsThreadDestructor is to invoke DetachCurrentThread, which performs thread cleanup in OpenJ9. Since OpenJ9 performs thread cleanup before hdfsThreadDestructor is invoked, hdfsThreadDestructor should account for *env == NULL and skip DetachCurrentThread. Signed-off-by: Babneet Singh <[email protected]>
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