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  1. JDK
  2. JDK-8266626

Check that the target address of a native call is not NULL

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      It's possible to pass MemoryAddress.NULL to CLinker::downcallHandle when linking, which will result in a segmentation fault when invoking the returned method handle.

      Similarly, it is possible to invoke a segmentation fault by passing NULL to a virtual native method handle.

      We can try to fail a bit faster here by checking that the target address is non-NULL before unboxing it.

            jvernee Jorn Vernee
            jvernee Jorn Vernee
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