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Cannot Call Invoke And Wait From The Event Dispatcher Thread


Why do we need InvokeLater method in Swing? Nice little Gotcha ;) January 5, 2012 at 4:07 PM Javin @ java final keyword example said... It works fine with the radiobuttons, sliders, and checkboxes, but when I tried to add a button for saving the sketch to an image, I got a "cannot call invokeAndWait from Word for "using technology inappropriately"? navigate here

How can one clause be part of the EDQ and another clause not be. myFile.getName(), maybe. Why do we need InvokeAndWait method in Swing As we know that Swing is not thread-safe and we can not update the Swing component or GUI from any thread. What did John Templeton mean when he said that the four most dangerous words in investing are: ‘this time it’s different'?


Since this infinite loop is on the EDT, the GUI can never be repainted; hence it locks up. How can I declare independence from the United States and start my own micro nation? there was also lots of followup in terms of blocking and how invokeAndWait achieves blocking etc. Call your code directly without the invokeAndWait and runnable. –lujop Jan 7 '11 at 21:03 add a comment| 1 Answer 1 active oldest votes up vote 3 down vote accepted You

Nothing wrong there. Runnable pickHighBetaStock = new Runnable() { public void run() { System.out.println("High beta Stock picked by " + Thread.currentThread()); } }; SwingUtilities.invokeLater(pickHighBetaStock); System.out.println("This might well be displayed before the other message. If you do not, then the screen will only be updated at what seems to be random times (when another window moves in front, perhaps). The stacks of each thread might prove interesting. –Michael Myers♦ Mar 12 '10 at 20:18 adding image of thread stack in debug mode to question –Aly Mar 12 '10

Code Review Checklist and Best practices in Java How to convert String to Date in Java - SimpleDate... Not the answer you're looking for? If it returns true, you can call your set of code right away rather than placing it inside an invokeAndWait() method. http://stackoverflow.com/questions/4630043/swingutilities-invokeandwait-not-running I changed one method signature and broke 25,000 other classes.

Basically, the invokeAndWait() method call is trying to dispatch the runnable to the event dispatching thread and then wait for it to finish. In first part we will mostly focus on invokeLater and will find answers to questions like What is invokeLater, how to use invokelater in java swing, example of invokelater in swing SiteMap About Us Contact Legal & Licences By use of this website, you agree to the NetBeans Policies and Terms of Use. © 2014, Oracle Corporation and/or its affiliates. It reads from a Bufferred reader.


Browse other questions tagged java swing swingutilities or ask your own question. http://javarevisited.blogspot.com/2011/09/invokeandwait-invokelater-swing-example.html Is it possible to bleed brakes without using floor jack? Invokeandwait If a reviewer makes significant contributions to improving a paper, may he/she suggest becoming a coauthor? This must be some sort of conflict between processing and swing's event handling?[How could I get around this - use a JFileChooser instead?

Hot Network Questions Why was Susan treated so unkindly? check over here Assigning a unique representation to equivalent circular queues Were the Smurfs the first to smurf their smurfs? Event Dispatcher thread is used to render graphics for java swing component and also process all events corresponding to a key press, mouse click or any action. When I test these error conditions, the first statement in the conditional works as designed, but I get a java error when testing the else clause.

How to get google plus invites free How to write Production quality code? However, I can't change the code that calls this method. If you are calling invokeLater sub-second the event queue always has something in it. his comment is here The class is supposed to open a java program and return a JPanel representing the program's output window.

Share to Twitter Share to Facebook Labels: core java , Swing Location: United States 5 comments : Anonymous said... Skip navigationOracle Community DirectoryOracle Community FAQGo Directly To Oracle Technology Network CommunityMy Oracle Support CommunityOPN Cloud ConnectionOracle Employee CommunityOracle User Group CommunityTopliners CommunityJava CommunityOTN Speaker BureauLog inRegisterSearchSearchCancelError: You don't have JavaScript Banner Ads Error processing request Cannot Call invokeAndWait From The Event Dispatcher Thread December 8, 2009 by blogmeister·5 Comments Share the post "Cannot Call invokeAndWait From The Event Dispatcher Thread" FacebookTwitterGoogle+PinterestLinkedIn

I will try this and see if it works.] - edit - this is for the loading file issue, not saving -but has same problem.Any other suggestions welcome Code:import javax.swing.JPanel;import javax.swing.JFrame;import

Find the function given its Fourier series On 1941 Dec 7, could Japan have destroyed the Panama Canal instead of Pearl Harbor in a surprise attack? more hot questions question feed lang-java about us tour help blog chat data legal privacy policy work here advertising info mobile contact us feedback Technology Life / Arts Culture / Recreation And if so, call the run() method directly. Bug145975 - [65cat] Error: Cannot call invokeAndWait from the event dispatcher thread Summary: [65cat] Error: Cannot call invokeAndWait from the event dispatcher thread Status: RESOLVED FIXED Product: contrib Classification: Unclassified Component:

Tank-Fighting Alien Where in the analytic hierarchy is the theory of true set theory? Theme: Flat 1.7.6 by Themeisle. How safe is 48V DC? weblink Edit: As it turns out, the actual problem is this loop: synchronized(performedAction){ while(!hasPerformedAction()){ try { performedAction.wait(); } catch (InterruptedException e) { e.printStackTrace(); } } setPerformedAction(false); } Since there is only one

However, when the main program tries to get the JPanel to place it in the JFrame, I get: Exception in thread "AWT-EventQueue-0" java.lang.Error: Cannot call invokeAndWait from the event dispatcher thread Top 10 Java Swing interview questions answers aske... Now let's see what the difference between invokeLater and InvokeAndWait is and when to use invokeLater. 1) InvokeLater is used to perform a task asynchronously in AWT Event dispatcher thread while Please type your message and try again.

We're sorry about that inconvenience, but we think it's better in the long run. Thanks for any help. Can anyone tell me why? Specifically: Exception in thread "AWT-EventQueue-2" java.lang.Error: Cannot call invokeAndWait from the event dispatcher thread at java.awt.EventQueue.invokeAndWait(Unknown Source) It is all part of the same conditional.

share|improve this answer answered Jan 7 '11 at 20:46 lujop 5,71163468 How do I get around this? Im happy I found it though, ill be checking back soon to see what other articles you have. Technical Support Forum Access ChemAxon scientists and developers here. invokeLater is used to perform any task asynchronously on AWT Event Dispatcher thread.

Format For Printing -XML -Clone This Bug -Top of page First Last Prev Next This bug is not in your last search results. Happy coding. Can you isolate the error and create and post an sscce? –Hovercraft Full Of Eels Oct 14 '11 at 21:15 add a comment| 3 Answers 3 active oldest votes up vote Even with println's it will display nothing. –Jakir00 Jan 7 '11 at 20:41 So, where does it stop ?

Description ranbato 2008-09-02 22:47:20 UTC Build: NetBeans IDE Dev (Build 200809020201) VM: Java HotSpot(TM) Client VM, 10.0-b23, Java(TM) SE Runtime Environment, 1.6.0_07-b06 OS: Windows XP, 5.1, x86 User Comments: I hit The content on this forum will remain online. Even if invokeLater is called directly form Event dispatches thread processing of Runnable task still be done only after processing all pending AWT Events. How to work with transient variable in java (an ex...

Have you put some System.out.println()s in? –jzd Jan 7 '11 at 20:37 I am sure. Does every interesting photograph have a story to tell?