Name: yyT116575 Date: 05/21/2001


$ ./java -version
java version "1.3.0_02"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.3.0_02)
Java HotSpot(TM) Client VM (build 1.3.0_02, mixed mode)
$


This may be a new bug ... or a duplicate of 4251318 ... it probably is a
duplicate if Robot.delay(int) spawns a child process.

The following program gets a null pointer exception when ran on a Solaris
machine via an X-Term on a PC:

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

public class Foo {
   
  private class Bar extends Thread {
    public void run() {
      Robot r = null;
      try {
        r = new Robot();
      } catch(Exception e) {
        System.out.println("ERROR!!!");
      }

      for (int i=0; i<10; i++) {
        System.out.println("Bar ["+i+"]");
        System.out.flush();
        r.delay(500);
      }
      System.exit(0);
    }
  }
   
  public void runFoo() {
    new Bar().start();
  }
   
  public static void main(String[] args) {
    Foo f = new Foo();
    f.runFoo();
  }
}


The output is:

Bar [0]
java.lang.NullPointerException
        at Foo$Bar.run(Foo.java:13)
(Review ID: 124648)
======================================================================