return clientsManager.reserveIdleClient(forkOptions)
    }

    private JavaForkOptions javaForkOptions(String minHeap, String maxHeap, List<String> jvmArgs) {
        def options = TestFiles.execFactory().newJavaForkOptions()
        options.workingDir = systemSpecificAbsolutePath("foo")
        options.minHeapSize = minHeap
        options.maxHeapSize = maxHeap
        options.jvmArgs = jvmArgs
        return options
    }

	unsafe.Offsetof(heapStatsDelta{}.largeFree),
	unsafe.Offsetof(heapStatsDelta{}.largeFreeCount),
	unsafe.Offsetof(heapStatsDelta{}.committed),
	unsafe.Offsetof(heapStatsDelta{}.released),
	unsafe.Offsetof(heapStatsDelta{}.inHeap),
	unsafe.Offsetof(heapStatsDelta{}.inStacks),
	unsafe.Offsetof(heapStatsDelta{}.inPtrScalarBits),
	unsafe.Offsetof(heapStatsDelta{}.inWorkBufs),
	unsafe.Offsetof(lfnode{}.next),
	unsafe.Offsetof(mstats{}.last_gc_nanotime),