URL http://paste-bin.com/view/108e1242
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GPars findAllParallel Bug

By Robert Fischer, 6 Months ago, written in groovy.

import static groovyx.gpars.Parallelizer.doParallel

@Grab(group='org.codehaus.gpars', module='gpars', version='0.9')
@Grab(group='org.coconut.forkjoin', module='jsr166y', version='070108')
class Foo {}

doParallel {
    def arbitraryData = (1..1000).collect { new Random().nextInt() }
    arbitraryData.findAllParallel { it % 2 }.min()
}

/*

java.lang.ClassCastException: java.lang.Integer
	at $Proxy9.evaluate(Unknown Source)
	at jsr166y.forkjoin.ParallelArray$WithBoundedFilter.leafIndexSelected(ParallelArray.java:1846)
	at jsr166y.forkjoin.PAS$FJSelectAll.compute(PAS.java:1292)
	at jsr166y.forkjoin.RecursiveAction.exec(RecursiveAction.java:247)
	at jsr166y.forkjoin.ForkJoinWorkerThread.doForkJoin(ForkJoinWorkerThread.java:978)
	at jsr166y.forkjoin.RecursiveAction.forkJoin(RecursiveAction.java:138)
	at jsr166y.forkjoin.PAS$FJSelectAll.internalPhase0(PAS.java:1306)
	at jsr166y.forkjoin.PAS$FJSelectAll.compute(PAS.java:1290)
	at jsr166y.forkjoin.RecursiveAction.exec(RecursiveAction.java:247)
	at jsr166y.forkjoin.ForkJoinWorkerThread.doForkJoin(ForkJoinWorkerThread.java:978)
	at jsr166y.forkjoin.RecursiveAction.forkJoin(RecursiveAction.java:138)
	at jsr166y.forkjoin.PAS$FJSelectAll.internalPhase0(PAS.java:1306)
	at jsr166y.forkjoin.PAS$FJSelectAll.compute(PAS.java:1290)
	at jsr166y.forkjoin.RecursiveAction.exec(RecursiveAction.java:247)
	at jsr166y.forkjoin.ForkJoinWorkerThread.doForkJoin(ForkJoinWorkerThread.java:978)
	at jsr166y.forkjoin.RecursiveAction.forkJoin(RecursiveAction.java:138)
	at jsr166y.forkjoin.PAS$FJSelectAll.internalPhase0(PAS.java:1306)
	at jsr166y.forkjoin.PAS$FJSelectAll.compute(PAS.java:1290)
	at jsr166y.forkjoin.RecursiveAction.exec(RecursiveAction.java:247)
	at jsr166y.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:286)

*/