This issue can manifest in many different ways. The common pattern appears to be stability issues with a JVM launched via JNI from a native host application. In the issue brought to us from another product team here at Oracle, consistently HotSpot would crash almost immediately after being launched with the following assertion error:
Internal Error (threadLocalStorage.cpp:56), pid=14368, tid=3072534208
guarantee(get_thread() == thread) failed: must be the same thread, quickly
This issue started when they upgraded to from 7u25 to 7u67.