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Segfault on invoke of interface methods #445
It was a repeat of the bug that I thought I was testing against a few days back. JPype used CallNonvirtual* methods of JNI. This is fine if the method actually exists. But if the method is abstract well down goes the JVM. It took forever to debug because most of the crashes went down so hard that error log was dying in some place like the garabage collector or the interrupt handler. Finally got one attempt to crash with a meaningful backtrace and ran it to ground.