JDK-6307699 : regression at 1.6.0 b46 for alacrity jetstream client on XP-x86 (8%) and Linux-x86 (2%)
  • Type: Bug
  • Component: hotspot
  • Sub-Component: runtime
  • Affected Version: 6
  • Priority: P3
  • Status: Closed
  • Resolution: Fixed
  • OS: linux,windows_xp
  • CPU: x86
  • Submitted: 2005-08-08
  • Updated: 2013-11-01
  • Resolved: 2005-12-07
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JDK 6
6 b63Fixed
Related Reports
Relates :  
JDK-6253381 - -Xcheck:jni JNI call made with exception pending should be a warning
Description
see comments
Comments
EVALUATION This regression seems to be caused by the fix for 6253381, exacerbating most likely the BiasedLocking. At the cost of the regression the correctness of the JNI behavior must be maintained. The bottom line is that an Exception call into the VM should not contain an Exception in the thread. The exception must be cleared before entering the VM, and the Exception is replaced provided another exception was not taken while in the VM. This correct behavior must be maintained, to prevent undesirable side-effects. The regression in jetstream will be mitigated by improving BL performance. In this bug a minor improvement has been added, which may not recoup the entire regression observed in b46.
19-11-2005