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Groups > comp.lang.java.programmer > #32027

Re: javax.swing.Timer blocking program termination

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On 07/14/2015 04:09 PM, Jeff Higgins wrote:

> Here's a thread dump. don't know what it means.
Here's a thread dumper. Still don't know.
When run in Eclipse even prints the source line numbers.

import java.awt.EventQueue;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.lang.management.ManagementFactory;
import java.lang.management.ThreadInfo;
import java.lang.management.ThreadMXBean;

import javax.swing.JFrame;
import javax.swing.Timer;

public class test extends JFrame {
   public test() {
     System.out.println("Start of test()");
     System.out.println(crunchifyGenerateThreadDump());
     Timer timer1 = new Timer(1000, event -> {});
     Timer timer2 = new Timer(1100, event -> {});

     Timer.setLogTimers(true);

     addWindowListener(new WindowAdapter() {
       @Override
       public void windowClosing(WindowEvent windowEvent) {
         System.out.println("Close");
         System.out.println(crunchifyGenerateThreadDump());
         timer1.stop();
         timer2.stop();
         System.out.println("Timers Stopped");
         System.out.println(crunchifyGenerateThreadDump());
       }
     });

     setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
     setSize(400, 300);
     setVisible(true);
     timer1.start();
     timer2.start();
     System.out.println(crunchifyGenerateThreadDump());
   }

   public static void main(String... args) {
     System.out.println("Before new test()");
     System.out.println(crunchifyGenerateThreadDump());
     EventQueue.invokeLater(() -> new test());
   }

   /**
    * 
<http://crunchify.com/how-to-generate-java-thread-dump-programmatically/>
    *
    * @return
    */
   public static String crunchifyGenerateThreadDump() {
     final StringBuilder dump = new StringBuilder();
     final ThreadMXBean threadMXBean = ManagementFactory.getThreadMXBean();
     final ThreadInfo[] threadInfos = 
threadMXBean.getThreadInfo(threadMXBean.getAllThreadIds(), 100);
     for (ThreadInfo threadInfo : threadInfos) {
       dump.append('"');
       dump.append(threadInfo.getThreadName());
       dump.append("\" ");
       final Thread.State state = threadInfo.getThreadState();
       dump.append("\n   java.lang.Thread.State: ");
       dump.append(state);
       final StackTraceElement[] stackTraceElements = 
threadInfo.getStackTrace();
       for (final StackTraceElement stackTraceElement : 
stackTraceElements) {
         dump.append("\n        at ");
         dump.append(stackTraceElement);
       }
       dump.append("\n\n");
     }
     return dump.toString();
   }
}

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Thread

javax.swing.Timer blocking program termination Knute Johnson <nospam@rabbitbrush.frazmtn.com> - 2015-07-13 16:03 -0700
  Re: javax.swing.Timer blocking program termination Jeff Higgins <jeff@invalid.invalid> - 2015-07-13 20:27 -0400
    Re: javax.swing.Timer blocking program termination Knute Johnson <nospam@rabbitbrush.frazmtn.com> - 2015-07-13 17:46 -0700
      Re: javax.swing.Timer blocking program termination Jeff Higgins <jeff@invalid.invalid> - 2015-07-13 21:35 -0400
        Re: javax.swing.Timer blocking program termination Jeff Higgins <jeff@invalid.invalid> - 2015-07-13 22:13 -0400
          Re: javax.swing.Timer blocking program termination Jeff Higgins <jeff@invalid.invalid> - 2015-07-13 22:27 -0400
          Re: javax.swing.Timer blocking program termination e.d.programmer@gmail.com - 2015-07-14 06:31 -0700
            Re: javax.swing.Timer blocking program termination Jeff Higgins <jeff@invalid.invalid> - 2015-07-14 10:15 -0400
              Re: javax.swing.Timer blocking program termination Jeff Higgins <jeff@invalid.invalid> - 2015-07-14 10:22 -0400
              Re: javax.swing.Timer blocking program termination e.d.programmer@gmail.com - 2015-07-14 07:39 -0700
                Re: javax.swing.Timer blocking program termination Eric Sosman <esosman@comcast-dot-net.invalid> - 2015-07-14 10:53 -0400
                Re: javax.swing.Timer blocking program termination e.d.programmer@gmail.com - 2015-07-14 10:16 -0700
                Re: javax.swing.Timer blocking program termination Eric Sosman <esosman@comcast-dot-net.invalid> - 2015-07-14 13:25 -0400
                Re: javax.swing.Timer blocking program termination e.d.programmer@gmail.com - 2015-07-14 10:45 -0700
                Re: javax.swing.Timer blocking program termination Eric Sosman <esosman@comcast-dot-net.invalid> - 2015-07-14 14:16 -0400
                Re: javax.swing.Timer blocking program termination Gene Wirchenko <genew@telus.net> - 2015-07-14 12:56 -0700
                Re: javax.swing.Timer blocking program termination Eric Sosman <esosman@comcast-dot-net.invalid> - 2015-07-14 16:14 -0400
                Re: javax.swing.Timer blocking program termination e.d.programmer@gmail.com - 2015-07-15 05:11 -0700
                Re: javax.swing.Timer blocking program termination Jeff Higgins <jeff@invalid.invalid> - 2015-07-15 08:33 -0400
                Re: javax.swing.Timer blocking program termination Martin Gregorie <martin@address-in-sig.invalid> - 2015-07-15 18:46 +0000
                Re: javax.swing.Timer blocking program termination Jeff Higgins <jeff@invalid.invalid> - 2015-07-15 21:18 -0400
                Re: javax.swing.Timer blocking program termination Jeff Higgins <jeff@invalid.invalid> - 2015-07-15 22:13 -0400
                Re: javax.swing.Timer blocking program termination Jeff Higgins <jeff@invalid.invalid> - 2015-07-14 10:55 -0400
                Re: javax.swing.Timer blocking program termination Knute Johnson <nospam@rabbitbrush.frazmtn.com> - 2015-07-14 08:17 -0700
                Re: javax.swing.Timer blocking program termination Jeff Higgins <jeff@invalid.invalid> - 2015-07-14 11:42 -0400
                Re: javax.swing.Timer blocking program termination Martin Gregorie <martin@address-in-sig.invalid> - 2015-07-14 18:35 +0000
                Re: javax.swing.Timer blocking program termination Jeff Higgins <jeff@invalid.invalid> - 2015-07-14 15:17 -0400
                Re: javax.swing.Timer blocking program termination Jeff Higgins <jeff@invalid.invalid> - 2015-07-14 15:36 -0400
                Re: javax.swing.Timer blocking program termination Eric Sosman <esosman@comcast-dot-net.invalid> - 2015-07-14 15:51 -0400
                Re: javax.swing.Timer blocking program termination Martin Gregorie <martin@address-in-sig.invalid> - 2015-07-14 21:51 +0000
                Re: javax.swing.Timer blocking program termination Knute Johnson <nospam@rabbitbrush.frazmtn.com> - 2015-07-14 15:08 -0700
                Re: javax.swing.Timer blocking program termination Martin Gregorie <martin@address-in-sig.invalid> - 2015-07-15 01:16 +0000
                Re: javax.swing.Timer blocking program termination Jeff Higgins <jeff@invalid.invalid> - 2015-07-14 16:09 -0400
                Re: javax.swing.Timer blocking program termination Jeff Higgins <jeff@invalid.invalid> - 2015-07-14 18:32 -0400
                Re: javax.swing.Timer blocking program termination Jeff Higgins <jeff@invalid.invalid> - 2015-07-14 18:34 -0400
                Re: javax.swing.Timer blocking program termination Jeff Higgins <jeff@invalid.invalid> - 2015-07-14 20:31 -0400
                Re: javax.swing.Timer blocking program termination Knute Johnson <nospam@rabbitbrush.frazmtn.com> - 2015-07-14 08:16 -0700
  Re: javax.swing.Timer blocking program termination Joerg Meier <joergmmeier@arcor.de> - 2015-07-14 08:32 +0200
  Re: javax.swing.Timer blocking program termination Jeff Higgins <jeff@invalid.invalid> - 2015-07-14 22:18 -0400
  Re: javax.swing.Timer blocking program termination Jeff Higgins <jeff@invalid.invalid> - 2015-07-15 08:26 -0400
    Re: javax.swing.Timer blocking program termination Knute Johnson <nospam@rabbitbrush.frazmtn.com> - 2015-07-15 11:05 -0700

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