<Swing Dev> javax.swing.TimerQueue does not run

Martin, Stefan stefan.martin at hob.de
Thu Nov 26 16:08:08 UTC 2009


Hi,

I found a bug in the class javax.swing.TimerQueue.
The bug occurs in openjdk-6-src-b17-14_oct_2009 on Linux.

The bug occurs a when using a javax.swing.JMenu inside another JMenu, the inner menu doesn't popup correctly.

The reason is that the Timer is not running.

I changed the file "javax/swing/TimerQueue.java" and moved the statement "running = true;"
in front of the Thread.start() method call.

synchronized void start() {
        if (running) {
            throw new RuntimeException("Can't start a TimerQueue " +
                                       "that is already running");
        }
        else {
            final ThreadGroup threadGroup =
                AppContext.getAppContext().getThreadGroup();
            running = true;
            java.security.AccessController.doPrivileged(
                new java.security.PrivilegedAction() {
                public Object run() {
                    Thread timerThread = new Thread(threadGroup, TimerQueue.this,
                                                    "TimerQueue");
                    timerThread.setDaemon(true);
                    timerThread.setPriority(Thread.NORM_PRIORITY);
                    timerThread.start();
                    return null;
                }
            });
        }
    }

Best regards
Stefan


________________________________
HOB RD VPN - einfach, sicher und flexibel auf alle Unternehmensanwendungen und -daten zugreifen

Praesentation unter: http://www.hob.de/rdvpn2/


HOB GmbH & Co. KG
Schwadermuehlstr. 3
D-90556 Cadolzburg

Geschaeftsfuehrung: Klaus Brandstaetter, Zoran Adamovic

AG Fuerth, HRA 5180
Steuer-Nr. 218/163/00107
USt-ID-Nr. DE 132747002

Komplementaerin HOB electronic Beteiligungs GmbH
AG Fuerth, HRB 3416
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mail.openjdk.java.net/pipermail/swing-dev/attachments/20091126/92b3762b/attachment.html>


More information about the swing-dev mailing list