NullPointerException stack trace not available without debug agent

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With the JVM flag -XX:-OmitStackTraceInFastThrow you can disable the performance optimization of the JVM for this use case. IF this parameter is given, which disables the flag, the stacktrace will be available.

For more information please have a look at the following release notes:

“The compiler in the server VM now provides correct stack backtraces for all “cold” built-in exceptions. For performance purposes, when such an exception is thrown a few times, the method may be recompiled. After recompilation, the compiler may choose a faster tactic using preallocated exceptions that do not provide a stack trace. To disable completely the use of preallocated exceptions, use this new flag: -XX:-OmitStackTraceInFastThrow.” http://java.sun.com/j2se/1.5.0/relnotes.html

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