A profiler vendor reports a crash using IterateThroughHeap when the primtive field callback enabled. The crash is hard to duplicate but the following has observed to crash on windows-i586 about 1 in 50 runs: java -mx512m -agentlib:SmallAgent -jar $JDK_HOME/jfc/SwingSet2/SwingSet2.jar The test creates an agent thread and invokes IterateOverHeap and IterateThroughHeap in a loop (with a 100ms pause between each iteration). When the crash occurs it typically happens when the counter is <20 which suggests the problem is that the heap iteration is encountering an object that is only partially initialized or an internal object.
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