While testing on a fast machine I noticed occasional crashes in the
compile broker during startup of the compile thread. Examination of
the code showed the use of methodHandles while in thread_in_native. 2
uses have been around forever but are unlikely to be hit since the
methodHandle is only accessed if the compiler oracle is being used.
The other 2 uses are a result of the new dtrace probes and these are
the likely cause of the crashes is was seeing.

###@###.### 2005-06-21 18:14:57 GMT