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  1. JDK
  2. JDK-6378434

(thread) IllegalThreadStateException invoking Thread.start after getting OOME (jdk5.0)

    Details

    • Type: Bug
    • Status: Closed
    • Priority: P4
    • Resolution: Not an Issue
    • Affects Version/s: 5.0
    • Fix Version/s: None
    • Component/s: core-libs
    • Labels:

      Description

      FULL PRODUCT VERSION :
      java version "1.5.0_04"
      Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0_04-b05)
      Java HotSpot(TM) Client VM (build 1.5.0_04-b05, mixed mode, sharing)


      ADDITIONAL OS VERSION INFORMATION :
      Linux jks-desktop 2.6.12-1.1376_FC3 #1 Fri Aug 26 23:27:26 EDT 2005 i686 athlon i386 GNU/Linux


      A DESCRIPTION OF THE PROBLEM :
      If a Thread.start() throws an OutOfMemoryError because a native system thread couldn't be created, trying to call start() again results in a IllegalThreadStateException, even though the the thread never started. I was not able to reduce the problem in jdk 1.4.2, so this seems to be a regressions.


      REPRODUCIBILITY :
      This bug can be reproduced often.

      ---------- BEGIN SOURCE ----------
      public class ThreadSpinner {

          /** Tries to start a thread until successfull. */
          private static void start_thread(final Thread orig_t){
              Thread t = orig_t;
              boolean sent_off = false;
              int times_tried = 0;
              while (true) try{
                  times_tried++;
                  t.start();
                  sent_off = true;
                  break;
              } catch(IllegalThreadStateException e){
                  e.printStackTrace();
                  System.exit(1);
              }catch(OutOfMemoryError e){
                  if (times_tried > 1)
                      System.err.println("already tried "+times_tried+" times");
                  t = new Thread(orig_t.getThreadGroup(), orig_t, orig_t.getName());
                  try{ Thread.sleep(3000); }
                  catch(InterruptedException e2){}
              }
          }

          public static void main(String[] args){
              ThreadGroup tg = new ThreadGroup("spun");

              final Object waiter = new Object();
              final long hour = 60 * 60 * 1000;

              int i = 0;

              while(true){
                  i++;
                  Runnable r = new Runnable(){
                          public void run(){
                              //try{ Thread.sleep(hour); } catch(Exception e){};
                              try{ waiter.wait(hour); } catch(Exception e){};
                          }};


                  Thread t = new Thread(tg, r,"thread "+i,1000000);
                  start_thread(t);
              }
          }
      }

      ---------- END SOURCE ----------

      CUSTOMER SUBMITTED WORKAROUND :
      Use a Runnable, so a new Thread can be created each time through the loop.

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              • Assignee:
                chegar Chris Hegarty
                Reporter:
                ndcosta Nelson Dcosta
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