current = getSystemCpuPercent();
            }
        } finally {
            waitingThreadNames.remove(threadName);
        }
        return true;
    }

    /**
     * Waits for all waiting threads to complete.
     */
    public void waitForNoWaitingThreads() {
        int count = waitingThreadNames.size();
        while (count > 0) {
            if (logger.isInfoEnabled()) {