How to ensure that a code block cannot be interrupted by any other thread in Java

For example:

new Thread(new Runnable() {
  public void run() {
    while(condition) {

      *code that must not be interrupted*

      *some more code*
    }
  }
}).start();

SomeOtherThread.start();

YetAntherThread.start();

How do you ensure that code that does not break does not break?

Solution

You can't - at least you can't use normal Java and run on a normal non real time operating system Even if other threads do not interrupt you, other processes may do so Basically, you can't guarantee that you'll get a CPU before you finish the operation If you want such a guarantee, you should use Java real-time system I don't know if I know it will certainly provide the facilities you want

It is best to avoid this requirement first