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Java Cannot Call Invokeandwait From The Event Dispatcher Thread

The second possibility is the synchronized(pendingEntries), but again: there is no evidence in the data presented that could cause this, but given the example anything goes. Rather put your rendering function in this Runnable directly. Why were pre-election polls and forecast models so wrong about Donald Trump? 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. More about the author

More discussions in JDeveloper and ADF All PlacesJavaJava Development ToolsApplication Development in JavaJDeveloper and ADF This discussion is archived 0 Replies Latest reply on Nov 3, 2005 10:06 AM by 172819 Thus we have deadlock. What crime would be illegal to uncover in medieval Europe? And renderOnEDT is waiting to enter that same method.

How to reply? Thanks dude!! And renderOnEDT is waiting to enter that same method.

Is there a word for being sad about knowing that the things that make you happy will eventually go away How to decline a postdoc interview if there is some possible Otherwise, to post a GUI rendering task in the EventQueue, use SwingUtilities.invokeLater(Runnable). So, that is the source of the deadlock it looks like. November 23, 2011 at 7:31 PM Steve Webb said...

September 14, 2011 at 10:02 PM Anonymous said... I think while posting your GUI rendering task to Event Queue using a synchronized function like enderOnEDT as you have said in your comment, then I don't see any reason for To explain a scenario of deadlock which you are likely having, lets look into an example: class ExampleClass { public synchronized void renderInEDT(final Thread t) { try { SwingUtilities.invokeAndWait(new Runnable() { http://stackoverflow.com/questions/7773545/what-part-of-my-code-is-in-the-event-dispatch-queue I'll assume they would be unacceptable.

Join them; it only takes a minute: Sign up What part of my code is in the event dispatch queue up vote 2 down vote favorite I thought I understood EDQ Cheers Tobias ChemAxon.com Forums Support Drawing & visualization: Marvin/Sketch /View /Space "AWT-EventQueue-0" java.lang.Error: Cannot call in Page 1 of 1 To watch this topic for replies Register (enables digests) Before using invokelater or going deep about invokelater lets see why do we need this method in swing utility class? more stack exchange communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed

Post Reply Bookmark Topic Watch Topic New Topic programming forums Java Java JSRs Mobile Certification Databases Caching Books Engineering Languages Frameworks Products This Site Careers Other all forums Forum: Threads and https://coderanch.com/t/233732/java/call-invokeAndWait-invokeLater Please type your message and try again. In summary, I believe that using techniques I describe above, or in the books cited, will solve this deadlock problem correctly and safely. The source code has the evidence: public static void invokeAndWait(Runnable runnable) throws InterruptedException, InvocationTargetException { if (EventQueue.isDispatchThread()) throw new Error("Cannot call invokeAndWait from the event dispatcher thread"); class AWTInvocationLock {} Object

Can anyone tell me why? my review here The reference of the invoking thread is passed to check the state for each of the invocation of SwingUtilities function. For game Related 0JDBC ODBC.. (Exception in thread “AWT-EventQueue-0” java.lang.NullPointerException)2JGraph AWT EventQueue exception on paint (with multithreading)1Exception in thread “AWT-EventQueue-0” java.lang.ClassCastException: javax.swing.JTable1Exception in thread “AWT-EventQueue-1” java.lang.UnsatisfiedLinkError: no jcom in java.library.path0Exception in As far as I know, multiple S-group multipliers must be integers but you have an "x" in line 289577 of your molfiles.sdf.

Invokelater is used by java swing developer to update or perform any task on Event dispatcher thread asynchronously.invokeLater has been added into Java API from swing extension and it belongs to In fact all of section 10.1 covers deadlock fairly thoroughly; I recommend it highly. As you already stated two threads try to access the Swing thread for some work, but at least one never returns, which obviously results in a deadlock of all Swing components. http://tcsmacs.net/java-cannot/java-cannot-create-java-virtual-machine-1.php This implies that code block 2 must reload any state from the synchronized object.

Its also important to remember that if run() method of Runnable object throw an exception then its caught in AWT EDT thread and rethrown as InvocationTargetException on caller thread. Formula 1 rebus Example for a commutative subring of a non-commutative ring Is there still a way to prevent Trump from becoming president? Even with println's it will display nothing. –Jakir00 Jan 7 '11 at 20:41 So, where does it stop ?

Can you post some? –Seth May 24 '10 at 19:36 I added a little code.

It seems that 134 is waiting for a monitor, which most probably means synchronized(pendingEntries), (or the clock.latch() which I think it is some kind of countdown latch?) From the stack trace, Technological gradient within a solar system? share|improve this answer answered Dec 3 '13 at 11:55 Mak 50039 invokeAndWait is not being called from the EDT. 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

This might be arbitrarily hard to do given the organization of the OP's application, but I think it's the only way to proceed. USA 2016 election demographic data Should you change a thermostat when changing your water pump Teenage daughter refusing to go to school About the kanji 鱈 What is this c. 1948 invokeAndWait(Runnable): It has the same function as the invokeLater but it differs from invokeLater for the fact that: invokeAndWait waits for the task given by it to the EDT, to finish navigate to this website Whiteboard: EXCEPTIONS_REPORT Keywords: Depends on: Blocks: Show dependency tree /graph Reported: 2008-09-02 22:47 UTC by ranbato Modified: 2008-09-10 15:50 UTC (History) CC List: 2 users (show) mentlicher tor See

Photographing Sea Turtles hatching on the beach In Revelation 19:16, of which kings is Jesus king? I am seen in darkness and in light, What am I? Comment 3 Torbjorn Norbye 2008-09-10 15:50:08 UTC Hi Martin, I've changed the code to postAction (and added a tasklistener such that I can serialize the two actions it invokes). share|improve this answer edited May 8 at 11:25 Francesco Menzani 2,66461848 answered Mar 12 '10 at 19:52 Itay Maman 19.7k65194 Yes is there another way to execute that command

But looking at stacktrace it looks like because you are using your wrapper thread its allowing you to call invokeAndWait but thats not right. The "trivial fix" (that would eliminate this exception) would be to eliminate the invokeAndWait methods, but that will have a negative impact if this code is invoked off the EDT as 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 If it were, the deadlock would occur every time.

Also as I mentioned, you should look into using SwingWorker and not doing the transactions on the EDT. –Jeff Storey May 24 '10 at 21:15 add a comment| up vote 1 Fixed in d459af916816 - but again, the feature doesn't work quite as well as before because after invoking Retry you have to press Enter or F7 to complete the step. An important point to note is that in case if the run method of Runnable task throws any exception then AWT Event dispatcher thread will unwind and not the current thread. 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.

What is a satisfactory result of penetration testing assessment? For whatever reason the current testcase crashes the whole program, without catching the error in the current window (which is weird, because whenever I had the older mview batch files, the There are other pitfalls, too.