Bump-the-pointer Technique

In this technique HotSpot JVM track the end of the previously allocated object. It keep the pointer at the end of the previously allocated object. So, whenever it need to allocate space for the new object it just check the memory area available after the previously allocated object. If the available memory area is enough then it will allocate the memory for the new object and the tracking pointer will be point after the end of the newly created object.