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public void contextInitialized(ServletContextEvent event) {
        List<MemoryPoolMXBean> memoryPools = ManagementFactory.getMemoryPoolMXBeans();
        for (MemoryPoolMXBean memoryPool : memoryPools) {
                // only set for pools that have usage threshold enabled and are NOT
                // already set somehow
                if (memoryPool.isUsageThresholdSupported() && memoryPool.getUsageThreshold() == 0) {
                        MemoryUsage memoryUsage = memoryPool.getUsage();
                        long max = memoryUsage.getMax();
                        String p = System.getProperty("MemoryPoolUsageThresholdPercent", "95");
                        Integer percent = ParseUtil.parseInteger(p);
                        long threshold = max / 100 * percent;
                        memoryPool.setUsageThreshold(threshold);
                }
        }
}