JMX MemoryPoolMXBean Arayüzü

setCollectionUsageThreshold metodu
Şöyle yaparız.

for(MemoryPoolMXBean pool : ManagementFactory.getMemoryPoolMXBeans()) {
  if(pool.getType() == MemoryType.HEAP && pool.isCollectionUsageThresholdSupported()) {
    pool.setCollectionUsageThreshold((int)Math.floor(pool.getUsage().getMax()*0.8));
  }
}