Sample Java code to simulate out of memory situation [closed]

Question

I am basically a Weblogic admin and want to simulate out of memory situation through deploying a very simple Java code(war/ear file) in my Weblogic instance.

I have a very little knowledge about Java coding so can someone please provide me a sample code which I can easily pack as war and deploy?

Answer 1

You can do final long[] l = new long[Integer.MAX_VALUE]; It will allocate 16Gb - 8 bytes.

Or you can just throw new OutOfMemoryError();

Answer 2

To simulate the memory being consumed over time try:

List<long[]> list = new LinkedList<long[]>();
while (true) {
  list.add(new long[65536]); // an arbitrary number
  // sleep(1) perhaps?
}