How can you ensure in java that a block of code can not be interrupted by any other thread

Question

exampl:

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

      *code that must not be interrupted*

      *some more code*
    }
  }         


        

Answer 1

Just start your own sub-thread, and make sure that the interrupt calls never filter through to it.

new Thread(new Runnable() {
  public void run() {
    Thread t = new Thread() {
      public void run() {
        *code that must not be interrupted*
      }
    }
    t.start(); //Nothing else holds a reference to t, so nothing call call interrupt() on it, except for your own code inside t, or malicious code that gets a list of every live thread and interrupts it.

      while( t.isAlive() ) {
        try {
          t.join();
        } catch( InterruptedException e ) {
          //Nope, I'm busy.
        }
      }

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

SomeOtherThread.start();

YetAntherThread.start();