Events firing in infinite loop

Hello,
I have two date fields (a start date and a due date) and a text field for the user to enter a duration between the two dates. I've added separate event listeners for each component and the problem I'm having is when one field is updated, the event listener calculates the date for the other one as well and when the value changes, its event listener fires and changes the other date, causing an infinite loop.
I've tried to remove the event listeners on the other components at the beginning of the listeners and adding them back at the end of the listeners, but the events still seem to fire when adding the listener.
Is there an easy way to prevent event handlers from being run when you are changing one component's value from the event listener of another component?

Try calling validateNow() on the controls before reattaching listeners
Alex Harui
Flex SDK Developer
Adobe Systems Inc.
Blog: http://blogs.adobe.com/aharui

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ICal in infinite loop adding events

I have truthfully never had much use for Ical. I have found it's functionality, look and feel sadly lacking with other programs.
However, I now have ICAL in what appears to be an infinite loop of trying to add new events. I suspect it has something to do with a link to Google Calendar.
I have nothing of value on ICal and I want to start over from scratch.
How to do?
OS X LION 10.7.5
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Further investigation looks like it's adding every event ever from MEETUP. Still want to NUKE iCAL and start ALL OVER>
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Triggering event FMRE-CREATED in an infinite loop

Hi guys,
Iu2019m having a big problem in Public Sector Management with Founds Management Government when I create a Found reservation Tcode FMX1.
My problem is the triggering event FMRE-CREATED (event to start the Workflow) because when the document is created, this event is generated by the system which is fine, but inside on my Workflow I have a task to change the status with FMRE-SetLock, when this method is executed, automatically trigger an event FMRE-CREATED again, so my WF gets in a infinite loop.
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Hi,
but inside on my Workflow I have a task to change the status with FMRE-SetLock, when this method is executed, automatically trigger an event FMRE-CREATED again, so my WF gets in a infinite loop.
How you changing the status? Check any Function Module or BAPI to change the status.
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Entity Adapter in infinite loop

Hi,
I have written code which takes userid as input and updates the user attribute using OIM API based an a criteria. I have attached this entity adapter on pre-update of the user form. The adapter is getting trigered but is going into infinite loop.
Can anyone help me on how to avoid this ??
Any help will be appreciated.

Hi,
I think don't need to update the user attribute using the OIM API. Assign the adapter return value to the UDF you want to update. So you dont have to use the API.
When you use the API, the events are fired, so your code will go in a loop.
If you have to update more than one field on the pre update, for example, I suggest you write an Event Handler. Below is a sample of an Event Handler code that I have assigned to the Specific Task Info dataobject:
import com.thortech.xl.client.events.tcBaseEvent;
public class EventHandlerSample extends tcBaseEvent {
     public NotifyTaskStatusChangedEvent(){
          this.setEventName("Event Handler Sample");
     @Override
     protected void implementation() throws Exception {
String taskKey = this.getDataObject().getString("SCH_KEY");
     String newTaskStatus = this.getDataObject().getString("SCH_STATUS");
     String oldTaskStatus = this.getDataObject().getCurrentString("SCH_STATUS");
System.out.println("Old Status: " + oldTaskStatus);
System.out.println("New Status: " + newTaskStatus);
if(this.getDataObject().isInserting()){
if (this.getDataObject().isPostEvent(){
//do something
if (this.getDataObject().isPreEvent(){
//do something
}else if(this.getDataObject().isUpdating()){
}else if (this.getDataObject().isDeleting()){
Read the metalink Developing a Custom OIM Event Handler Using Eclipse [ID 604817.1]
Renato.

Infinite loop error after using Java Sun Tutorial for Learning Swing

I have been attempting to create a GUI following Sun's learning swing by example (example two): http://java.sun.com/docs/books/tutorial/uiswing/learn/example2.html
In particular, the following lines were used almost word-for-word to avoid a non-static method call problem:
SwingApplication app = new SwingApplication();
Component contents = app.createComponents();
frame.getContentPane().add(contents, BorderLayout.CENTER);I believe that I am accidentally creating a new instance of the gui class repeatedly (since it shows new GUI's constantly and then crashes my computer), possibly because I am creating an instance in the main class, but creating another instance in the GUI itself. I am not sure how to avoid this, given that the tutorials I have seen do not deal with having a main class as well as the GUI. I have googled (a nice new verb) this problem and have been through the rest of the swing by example tutorials, although I am sure I am simply missing a website that details this problem. Any pointers on websites to study to avoid this problem would be appreciated.
Thanks for your time-
Danielle
/** GUI for MicroMerger program
* Created July/06 at IARC
*@ author Danielle
package micromerger;
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.io.PrintWriter;
import javax.swing.JFileChooser;
import java.lang.Object;
public class MGui
     private static File inputFile1, inputFile2;
     private static File sfile1, sfile2;
     private static String file1Name, file2Name;
     private String currFile1, currFile2;
     private JButton enterFile1, enterFile2;
     private JLabel enterLabel1, enterLabel2;
     private static MGui app;
     public MGui()
          javax.swing.SwingUtilities.invokeLater(new Runnable()
               public void run()
                    System.out.println("About to run create GUI method");
                    app = new MGui();
                    System.out.println("declared a new MGui....");
                    createAndShowGUI();
     //initialize look and feel of program
     private static void initLookAndFeel() {
        String lookAndFeel = null;
     lookAndFeel = UIManager.getSystemLookAndFeelClassName();
     try
          UIManager.setLookAndFeel(lookAndFeel);
     catch (ClassNotFoundException e) {
                System.err.println("Couldn't find class for specified look and feel:"
                                   + lookAndFeel);
                System.err.println("Did you include the L&F library in the class path?");
                System.err.println("Using the default look and feel.");
            } catch (UnsupportedLookAndFeelException e) {
                System.err.println("Can't use the specified look and feel ("
                                   + lookAndFeel
                                   + ") on this platform.");
                System.err.println("Using the default look and feel.");
            } catch (Exception e) {
                System.err.println("Couldn't get specified look and feel ("
                                   + lookAndFeel
                                   + "), for some reason.");
                System.err.println("Using the default look and feel.");
                e.printStackTrace();
     // Make Components--
     private Component createLeftComponents()
          // Make panel-- grid layout
     JPanel pane = new JPanel(new GridLayout(0,1));
        //Add label
        JLabel welcomeLabel = new JLabel("Welcome to MicroMerger. Please Enter your files.");
        pane.add(welcomeLabel);
     //Add buttons to enter files:
     enterFile1 = new JButton("Please click to enter the first file.");
     enterFile1.addActionListener(new enterFile1Action());
     pane.add(enterFile1);
     enterLabel1 = new JLabel("");
     pane.add(enterLabel1);
     enterFile2 = new JButton("Please click to enter the second file.");
     enterFile2.addActionListener(new enterFile2Action());
     pane.add(enterFile2);
     enterLabel2 = new JLabel("");
     pane.add(enterLabel2);
     return pane;
     /** Make GUI:
     private static void createAndShowGUI()
     System.out.println("Creating a gui...");
        JFrame.setDefaultLookAndFeelDecorated(true);
        //Create and set up the window.
        JFrame frame = new JFrame("MicroMerger");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
     //Add stuff to the frame
     //MGui app = new MGui();
     Component leftContents = app.createLeftComponents();
     frame.getContentPane().add(leftContents, BorderLayout.WEST);
        //Display the window.
        frame.pack();
        frame.setVisible(true);
private class enterFile1Action implements ActionListener
     public void actionPerformed(ActionEvent evt)
          JFileChooser chooser = new JFileChooser();
          int rVal = chooser.showOpenDialog(enterFile1);
          if(rVal == JFileChooser.APPROVE_OPTION)
               inputFile1 = chooser.getSelectedFile();
               PrintWriter outputStream;
               file1Name = inputFile1.getName();
               enterLabel1.setText(file1Name);
private class enterFile2Action implements ActionListener
     public void actionPerformed(ActionEvent evt)
          JFileChooser chooser = new JFileChooser();
          int rVal = chooser.showOpenDialog(enterFile1);
          if(rVal == JFileChooser.APPROVE_OPTION)
               inputFile2 = chooser.getSelectedFile();
               PrintWriter outputStream;
               file2Name = inputFile2.getName();
               enterLabel2.setText(file2Name);
} // end classAnd now the main class:
* Main.java
* Created on June 13, 2006, 2:29 PM
* @author Danielle
package micromerger;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.io.*;
public class Main
    /** Creates a new instance of Main */
    public Main()
     * @param args the command line arguments
    public static void main(String[] args)
        MGui mainScreen = new MGui();
        //mainScreen.setVisible(true);
        /**Starting to get file choices and moving them into GPR Handler:
         System.out.println("into main method");
     String file1Name = new String("");
         file1Name = MGui.get1Name();
     System.out.println("good so far- have MGui.get1Name()");
    }// end main(String[] args)
}// end class Main

um, yeah, you definitely have a recursion problem, that's going to create an infinite loop. you will eventually end up an out of memory error, if you don't first get the OS telling you you have too many windows. interestingly, because you are deferring execution, you won't get a stack overflow error, which you expect in an infinite recursion.
lets examine why this is happening:
in main, you call new MGui().
new MGui() creates a runnable object which will be run on the event dispatch thread. That method ALSO calls new MGui(), which in turn ALSO creates a new object which will be run on the event dispatch thead. That obejct ALSO calls new MGui(), which ...
well, hopefully you get the picture.
you should never unconditionally call a method from within itself. that code that you have put in the constructor for MGui should REALLY be in the main method, and the first time you create the MGui in the main method as it currently exists is unnecessary.
here's what you do: get rid of the MGui constructor altogether. since it is the implicit constructor anyway, if it doesn't do anything, you don't need to provide it.
now, your main method should actually look like this:
public static void main( String [] args ) {
SwingUtilities.invokeLater( new Runnable() {
    public void run() {
      MGui app = new MGui();
      app.createAndShowGUI();
}// end mainyou could also declare app and call the constructor before creating the Runnable, as many prefer, because you would have access to it from outside of the Runnable object. The catch there, though, is that app would need to be declared final.
- Adam

Paint() method is in infinite loop when focus is set to JTextPane

Hi All,
I am creating one JScrollPane, JPanel and JTextPane. JPanel is added to JScrollPane and JTextPane is added to JPanel. If I override paint() method in JPanel, its in infinite loop. I don't know why it is behaving like this. Can anyone solve my problem. Since, I am doing so much drawings in paint() method, its getting to slow.
Here is the code what I wrote.
import javax.swing.*;
import javax.swing.border.*;
import java.awt.*;
import java.awt.event.*;
public class TestTextPane1 extends JFrame {
     JPanel panel;
     JScrollPane pane;
     public TestTextPane1() {
          panel = new JPanel(new BorderLayout()) {
               public void paint(Graphics g) {
                    super.paint(g);
                    System.out.println("inside paint");
          JTextPane textPane = new JTextPane();
          panel.add(textPane);
          pane = new JScrollPane(panel);
          getContentPane().add(pane);
          setSize(300, 200);
          setVisible(true);
     public static void main(String [] args) {
          new TestTextPane1();
Any help will be useful for me.
Regards
Kishore.

What are you trying to do? You are adding the textPane to the panel and then overriding the paint() method. The textPane will never be painted if you do this.
In Swing, you should override the paintComponent() method, not the paint() method. See the Swing tutorial on Painting:
http://java.sun.com/docs/books/tutorial/uiswing/overview/draw.html
Don't forget to read the "Working With Graphics" link at the bottom.

First event fired to event structure

Hi all,
Does anyone know what's the first event being fired to the event structure on VI startup? I set a breakpoint on the event structure and it breaks. However i wasn't able to capture whats the event.
My intention was simple; i have a table which list all the IO names and values. So during VI startup, i wan to populate the IO names first. Then in a timed-loop, the values are updated respectively. In this case, i don't need to "refresh" the table every time which waste time and resources.
It something like the OnLoad event.
Another way out is to register an user event, and have this event fired during application startup. But i wonder if anyone has a better way?
Many thanks!

j3r3mi wrote:
My intention was simple; i have a table which list all the IO names and values. So during VI startup, i wan to populate the IO names first. Then in a timed-loop, the values are updated respectively. In this case, i don't need to "refresh" the table every time which waste time and resources.
Why don't you show us some code.
Are the IO name static for the duration of the program? Are you using a regular table column or the "row header strings []" property for the IO names?
If you want to write the row headers at the start of the program, place the code before the main loop containing the event structure. No event case needed. If you have a specific event to update the table headers if needed, fire the event once at startup using a signaling value property, again with the property node placed before the main loop.
LabVIEW Champion . Do more with less code and in less time .

How do you start a loop with an event and end the loop when u release ....

How do you start a loop with lets say an event of some sort, whether it be holding down a key or pressing the mouse click and then stopping the loop when you release that key or mouse button.?
double c = 1.8, i = 1, max = 90, exp = 0;
final double inc = 0.002; //speed at while it increases
boolean f = false, g = false;
while (true)
    while (f == false && stopMeter == false) //increasing speed going up to 90
        exp = Math.pow (c, i);
        i += inc;
        pAngle.setText (Math.round (exp) + "");
        if (exp > max)
            f = true;
            g = false;
        } //end if
    } //end while
    while (g == false && stopMeter == false) //decreasing speed going down from 90
        exp = Math.pow (c, i);
        i -= inc;
        pAngle.setText (Math.round (exp) + "");
        if (exp < 1)
            g = true;
            f = false;
        } //end if
    } //end while
} //end whilethis is a snippet of my increasing increments. Its for an angle meter. I can't get it to stop, when the user clicks or does something... the program just gets stuck in an infinite loop. I am still new to java and i do not know how to fix this.

You are in the wrong forum. Try this one instead: http://forum.java.sun.com/forum.jspa?forumID=31
/M

ActionEvent/Setting gui text in an infinite loop

Hi,
I have set up a gui that contains ~ 100 JTextFields and one JTextButton
Pressing the JTextButton on the gui triggers an action event that
1.     establishes a socket connection w/ a server
2.     reads input from the server in an infinite loop
3.     should use the server data to dynamically setText in the various JTextFields found on the gui.
for example, during one iteration of the infinite loop, the data may set the text of JTextField #1 to ?foo? and in a later iteration of the loop, the new data from the input stream may set the text of the same field to something else (e.g. ?bar?). Thus, the gui should show a dynamically changing collection of TextFields after the user presses the JTextButton.
Problem: because of the infinite loop, NONE of the fields is ever updated (see pseudocode below). If I remove the infinite loop and simply have 1 iteration of the block of code within the actionPerformed method, the gui updates properly.
How might I alter the code to a) maintain the server connection, b) continuously read from the input stream and c) have a dynamic update of the textfields w/in the gui?
I've tried adding "this.paint(this.getGraphics());" within the infinite loop and it sort of works, but the updates to the gui are FAR SLOWER than the data that are streaming in from the server.
Thanks for any help!
The code looks something like this
Public class abc extends JFrame
Public abc()
     {initialize components}
instantiate all textfields & button
create various arrays
public void initialize components
     (set up gui using gridbaglayout
     add actionListener to button)
private actionperformed
(establish socket connection w/ server
     read data from server in an infinite loop
     parse data and use information to setText on the gui)
public static void main(blah blah)
     show abc();

have the reading loop in a different class which will have its own Thread running aside from the main program's thread. This way your application will do both at once :)

[svn:fx-trunk] 10214: This fixes the problem that if two text components share the same textFlow there is an infinite loop involving updateDisplayList - damageHandler - invalidateDisplaylist - back to updateDisplayList.

Revision: 10214
Author:   [email protected]
Date:     2009-09-13 07:33:58 -0700 (Sun, 13 Sep 2009)
Log Message:
This fixes the problem that if two text components share the same textFlow there is an infinite loop involving updateDisplayList -> damageHandler -> invalidateDisplaylist -> back to updateDisplayList. The bug file was for TextArea which is RET but the same bug was in RichText as well.
This example with a renderer exposed it because the typicalItem that is composed to figure out sizes and the actual first item in the list share the same textFlow. It actually has nothing to do with useVirtualDisplay other than it was sharing a textFlow.
It turns out that the TextFlowFactory dispatches damage events every time the textFlow is composed. Unlike when the flowComposer is used, it always considers the flow damaged. It was exacerbated by each of the two components having a damage handler for the same textFlow.
The solution is to use the textFlow generation number. In the damageHandler if the generation is the last known generation number, assume no changes, and return immediately from the damage handler.
QE notes: There are 1 TextArea, 6 TextInput and 2 NumericStepper failuers, with or without my changes. The common link seems to be DispatchKeyEvent. Most were testing maxChar, displayAsPassword and restrict. I tested these and they seem to be working correctly.
Doc notes:
Bugs: SDK-23002
Reviewer: Gordon
Tests run: checkintests, TextArea, TextInput and NumericStepper
Is noteworthy for integration: no
Ticket Links:
    http://bugs.adobe.com/jira/browse/SDK-23002
Modified Paths:
    flex/sdk/trunk/frameworks/projects/spark/src/spark/components/RichEditableText.as
    flex/sdk/trunk/frameworks/projects/spark/src/spark/components/RichText.as
    flex/sdk/trunk/frameworks/projects/spark/src/spark/components/supportClasses/RichEditable TextContainerManager.as

Revision: 10214
Author:   [email protected]
Date:     2009-09-13 07:33:58 -0700 (Sun, 13 Sep 2009)
Log Message:
This fixes the problem that if two text components share the same textFlow there is an infinite loop involving updateDisplayList -> damageHandler -> invalidateDisplaylist -> back to updateDisplayList. The bug file was for TextArea which is RET but the same bug was in RichText as well.
This example with a renderer exposed it because the typicalItem that is composed to figure out sizes and the actual first item in the list share the same textFlow. It actually has nothing to do with useVirtualDisplay other than it was sharing a textFlow.
It turns out that the TextFlowFactory dispatches damage events every time the textFlow is composed. Unlike when the flowComposer is used, it always considers the flow damaged. It was exacerbated by each of the two components having a damage handler for the same textFlow.
The solution is to use the textFlow generation number. In the damageHandler if the generation is the last known generation number, assume no changes, and return immediately from the damage handler.
QE notes: There are 1 TextArea, 6 TextInput and 2 NumericStepper failuers, with or without my changes. The common link seems to be DispatchKeyEvent. Most were testing maxChar, displayAsPassword and restrict. I tested these and they seem to be working correctly.
Doc notes:
Bugs: SDK-23002
Reviewer: Gordon
Tests run: checkintests, TextArea, TextInput and NumericStepper
Is noteworthy for integration: no
Ticket Links:
    http://bugs.adobe.com/jira/browse/SDK-23002
Modified Paths:
    flex/sdk/trunk/frameworks/projects/spark/src/spark/components/RichEditableText.as
    flex/sdk/trunk/frameworks/projects/spark/src/spark/components/RichText.as
    flex/sdk/trunk/frameworks/projects/spark/src/spark/components/supportClasses/RichEditable TextContainerManager.as

MVC problem - infinite loop?

I'm going to use a horribly oversimplified example to make my point here, because if I were to describe the actual code I'm looking at, it would take the better part of the afternoon and I'd probably bore you all to tears in the process. So, for the sake of argument, let's assume the following model object:
public class MyModelObject
private int a;
private int b;
private int c;
public void setA(int newA)
    a = newA;
    b = newA + SOME_CONSTANT;
    c = newA + SOME_OTHER_CONSTANT;
public void setB(int newB)
    this.setA(SOME_CONSTANT-newB);
public void setC(int newC)
    this.setA(SOME_OTHER_CONSTANT-newC);
public int getA()
    return a;
public int getB()
    return b;
public int getC()
    return c;
}So what we see from this is that the setter for one class property actually changes the value of all three class properties (whether this is good design or not is questionable, but keep in mind this is a horribly simplified example for discussion purposes). The point is that the rules regarding the internal state of MyModelObject are governed entirely within that class - the controller and view don't know about these rules (again, questionable design, but bear with me here).
Now let's imagine we have a view class that displays a MyModelObject instance and allows the user to change the value of a, b, or c. We also have a controller class that observes the view and responds to changes. When the user modifies the value of, let's say b, the controller will respond to that change by calling the setB() method in MyModelObject. Problem is, now the model and the view are out of synch... someone has to tell the view that the other two class properties have also been modified as a result of calling setB() - whose responsibility is this? Should the model inform the view that something has changed so that the view can redisplay it, or should the view observe the model and automatically redisplay whenever the model is modified?
More importantly - let's say the controller is observing the view for changes, and the view is observing the model for changes... how do you avoid an infinite loop? For example, the user changes the value of b in the view, which causes the internal state of MyModelObject to be modified, which causes a change in the view, which causes a change in the model, and so on and so forth.
A twist on the above problem is that it is illegal in some Swing components (JTextPane, for instance) to modify the view while a change notification is in progress... so something like this would throw an IllegalStateException:
//somewhere in the controller
public void insertUpdate(DocumentEvent docEvent)
//update the model
myModelObject.handleChange(docEvent);
//now redisplay since the model has changed:
myTextPane.display(myModelObject);
// IllegalStateException is raised - Attempt to mutate in notification
}This fails because you can't change the state of the view component in the event handler for a view change event. How do you get around this using proper MVC architecture? Or am I completely out to lunch here?

The view shouldn't send events to the controller unless they make sense... For example, it shouldn't fire a change event when the user types in a new value. But only if the user presses enter, or the view loses focus (if this gesture is taken as equivalent).
So when the change of the view comes from the side-effects of a setter of some property, it should fire no event (so that it will not loop). So it sounds no big problem (if such a distinction of events is easy - it should).

Infinite Loop issue in Encore CS5.1

I have never been as angry at a piece of software as I am with Adobe Encore. I have been crashing it for almost a week now and I still am no closer to figureing out the problem...
I have a 90 minute feature in Pr that I exported as an SD 16:9 (progressive frames) set of m2vs. I also exported a single AC3 audio file using Surcode. The moment I import any of the video the software becomes unstable. My current methodology involves setting up the entire menu system (one SD main menu and 3 chapter sub menus), then import the AC3 as a timeline, then finally importing the M2Vs, one at a time saving after every successful import. No dynamic links or anything unusual.
Even though it is a 4GB SD feature the Encore process is using almost 2GB of memory when it seems to be working right. Whenever I try to perform any task I get the (Not Responding) notice and I have to look at the process list. If the CPU is fluctuating I have a good chance that control will return, if it locks in at 8% then it is stuck in some kind of infinite loop and will never come back. At that point I kill off the program and try to see if the last saved session will load. While in the infinite loop the memory will count up to about 3GB thae get knocked down to about 1GB, then start counting back up again.
I have successfully completed the CD creation process once or twice, but it can take mnore than a day to complete what should take 20 minutes.
I have deleted the Media Cache DB, moved the Media Cache DB, re-installed the software, and searched the net for a solution. Nada...
I am doing this work on my editor:
OS Name Microsoft Windows 7 Ultimate
Version 6.1.7601 Service Pack 1 Build 7601
Other OS Description Not Available
OS Manufacturer Microsoft Corporation
System Name EDITORPC
System Manufacturer System manufacturer
System Model System Product Name
System Type x64-based PC
Processor Intel(R) Core(TM) i7 CPU 980 @ 3.33GHz, 3750 Mhz, 6 Core(s), 12 Logical Processor(s)
BIOS Version/Date American Megatrends Inc. 1001, 12/24/2010
SMBIOS Version 2.5
Windows Directory C:\Windows
System Directory C:\Windows\system32
Boot Device \Device\HarddiskVolume5
Locale United States
Hardware Abstraction Layer Version = "6.1.7601.17514"
User Name EditorPC\bgruen
Time Zone Eastern Daylight Time
Installed Physical Memory (RAM) 24.0 GB
Total Physical Memory 24.0 GB
Available Physical Memory 20.1 GB
Total Virtual Memory 48.0 GB
Available Virtual Memory 44.0 GB
Page File Space 24.0 GB
Page File C:\pagefile.sys
Any suggestions?
Bob

I'm don't think that is the "same problem," unless you are mixing one ac3 with multiple m2vs on the same timeline. (If the following doesn't solve your issue, start a new thread.)
In any event, the following may not be directly applicable to your OS or situation, but includes global issues and specifics. Look in particular at numbers 1 and 4.
Troubleshoot system errors and freezes | Adobe software on Mac OS 10.x
http://kb2.adobe.com/cps/824/cpsid_82414.html
Edit: Reading my mind? I'll add this to your new thread!

Start/Stop Buttons and infinite loop exit

I am trying to make a GUI with a Start/Stop and an Exit button. Initially the button will have the label "Start". When i push it, its label should become "Stop" and an infinite loop function will begin. I want the loop to run until i press the Stop or Exit button.
The problem is that when the loop starts i can't press neither of the buttons. The "Start" button changes its label into "Stop" only if i make the loop finite and it ends.
Here is the source:
import java.awt.BorderLayout;
import java.awt.Component;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
public class StartStopButtons extends JFrame{
    Component visualComponent = null;
    JPanel panel = null;
    JLabel statusBar = null;
     public StartStopButtons() {
          setSize(160, 70);
          getContentPane().setLayout(new BorderLayout());
        panel = new JPanel();
        panel.setLayout(new BorderLayout());
        getContentPane().add(panel, BorderLayout.CENTER);
        final JPanel panel_1 = new JPanel();
        panel.add(panel_1, BorderLayout.CENTER);
        final JButton startButton = new JButton();
        startButton.addActionListener(new ActionListener() {
             public void actionPerformed(final ActionEvent e) {
                String action = e.getActionCommand();
                if (action.equals("Start")) {
                     System.out.println("Start Loop");
                     startButton.setText("Stop");
                     myLoop ();
                if (action.equals("Stop")) {
                     System.out.println("Stop Loop");
                     System.exit(0);
        startButton.setText("Start");
        panel_1.add(startButton);
        final JButton exitButton = new JButton();
        exitButton.addActionListener(new ActionListener() {
             public void actionPerformed(final ActionEvent e) {
                String action = e.getActionCommand();
                if (action.equals("Exit")) {
                    System.exit(0);
        panel_1.add(exitButton);
        exitButton.setText("Exit");
     public void myLoop() {
          for (int i = 0; ; i++)
               System.out.println(i);
     public static void main(String[] args) {
          StartStopButtons ssB = new StartStopButtons();
          ssB.setVisible(true);
}

I works just fine. Here is the source and thanks for the help.
import java.awt.BorderLayout;
import java.awt.Component;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.UIManager;
public class StartStopButtons extends JFrame implements ActionListener, Runnable{
    Component visualComponent = null;
    JPanel panel = null;
    JLabel statusBar = null;
    Thread thread;
    JButton startButton;
     public StartStopButtons() {
        try {
            UIManager.setLookAndFeel(
                UIManager.getSystemLookAndFeelClassName());
        } catch(Exception e) {}
          setSize(160, 70);
          getContentPane().setLayout(new BorderLayout());
        panel = new JPanel();
        panel.setLayout(new BorderLayout());
        getContentPane().add(panel, BorderLayout.CENTER);
        final JPanel panel_1 = new JPanel();
        panel.add(panel_1, BorderLayout.CENTER);
        startButton = new JButton();
        startButton.addActionListener(this);
        startButton.setText("Start");
        panel_1.add(startButton);
        final JButton exitButton = new JButton();
        exitButton.addActionListener(new ActionListener() {
             public void actionPerformed(final ActionEvent e) {
                String action = e.getActionCommand();
                if (action.equals("Exit")) {
                    System.exit(0);
        panel_1.add(exitButton);
        exitButton.setText("Exit");
     public void actionPerformed(ActionEvent e) {
          String action = e.getActionCommand();
          if (action.equals("Start")) {
               startButton.setText("Stop");
               thread = new Thread( this );
               thread.start();
          if (action.equals("Stop")) {
            System.exit(0);
     public void run() {
          myLoop();
     public void myLoop() {
          for (int i = 0; ; i++)
               System.out.println(i);
     public static void main(String[] args) {
          StartStopButtons ssB = new StartStopButtons();
          ssB.setVisible(true);
}

Push-replication pattern does not work in activeactive mode - infinite loop

Hi Gurus,
I have encountered some problems while playing with the example of push-replication / active2active pattern, and tried to fix them. But there is still one which is now beyond my current knowledge:
Issue 1: (fixed)
After download the latest Incubator example from the official website and run the push-replication / active2active example directly following the [readme] file, exceptions related to serialization / deserialization occurred. I then added the mockito-all-1.8.5.jar to the Incubator-example’s lib directory and the problem gone.
Issue 2: (fixed)
Running the example, and found that [update events] triggered by the active-server1 can be propagated to active-server2, but not for vice versa (active-server2 -> active-server1). I inspected the cache configuration file of active-server2 (active2-cache-config.xml), and found there should be a typo in it, as:
<event:remote-cluster-channel-scheme>
<event:remote-invocation-service-name>remote-site1</event:remote-invocation-service-name>
</event:remote-cluster-channel-scheme>
<remote-invocation-scheme>
<service-name>remote-sit1</service-name>
</remote-invocation-scheme>
This should be a typo, so I changed the remote-sit1 to remote-site1 and the problem gone as expected.
Issue 3: (pending)
After having the above 2 issues fixed, and re-run the example from scratch, this time I found the program can never end (infinite loop). From the log, I can see the update-count exceeds 5000 (expected value is 2000 which will trigger the program exit) and keep increasing????????
Could you please so kind give some hint? Thank you in advance!
Best regards
Hysun He

Hey Hysun He,
Issues 1 and 2 are now resolved in Incubator 11.0.0
Issue 3 looks to be a problem with the lack of a suitable base-case preventing eventual consistency between the sites.
Note: That the Auction example, which is also "Active Active" does not have this problem.
I've raise the following issue to track progress:
http://java.net/jira/browse/COHINC-19
Brian Oliver | Architect | Oracle Coherence

IMovie 08 slideshow infinite loop - with Applescript and Automator?

As many people I try to use iMovie for a slide show with an infinite loop. But there is no button inside the program for it. I don't want to export the project to use the loop function of Quicktime. Because that means compression of the slide show photos - Export with Quicktime: H.264, Best Quality.
I already compressed the photos with JPG in High Resolution (Photoshop) and dropped them into the project. The result of double compression is not fine (enough). And the amount of data increases.
So I tried to program a short Applesript for an infinite loop in iMovie. First it seemed to be very simple. iMovie "cmd g" starts the fullscreen presentation of the project. At the end you press "spacebar" and it runs again.
(Finder object)
tell application "System Events"
tell application "iMovie" to activate
keystroke "g" using command down
end tell
(Pause)
tell application "System Events"
tell application "iMovie" to activate
keystroke "space bar" (or "arrow left"?)
end tell
(infinite loop)
Unfortunately it didn't loop. At the end of the presentation the screen remains black. Only a beep signals that the Applescript pressed the spacebar. What did I wrong?
In some groups people say it's impossible to program a script for iMovie because it does not support Applescript.
Blackletter

I made a simple mistake in the code.
wrong:
keystroke "space bar"
right:
keystroke space
Now the infinite loop runs in iMovie!

Events firing in infinite loop

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