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From "史成荣" <icyr...@gmail.com>
Subject Re: [drlvm][jitrino]-about exception handling
Date Mon, 06 Aug 2007 10:40:38 GMT
But it is said in Mark Stoodley's paper: Automatically Reducing Repetitive
Synchronization with a Just-in-Time Compiler for Java(cgo'05) that "The
exception handling infrastructure in IBM's JVM is already designed to track
objects as they are locked and unlocked. It automatically unlock any locked
objects when the exception occurs before any exception handler is executed
or before the frame is deleted if there is no handler for the exception in
the frame's method. This mechanism is orthogonal to synchronization
elimination.
In a JVM without such a mechanism, new catch blocks must be created to
explicitly unlock the object if an exception occurs."
And I had a look at chaprer 8 and 7.12 of JVM spec, didn't find any
description about the releasing of the lock(s) when  the exception is
thrown.

Thanks,
Chengrong

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