IllegalArgumentException « Development « Java Swing Q&A

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1. What am I doing wrong in Java to get this IllegalArgumentException?    stackoverflow.com

I occasionally get an exception in a JTextArea that I'm updating with JTextArea.append() ... 

java.lang.IllegalArgumentException: Invalid remove
    at javax.swing.JTextArea.replaceRange(Unknown Source)
    at sun.plugin.ConsoleWindow$24.run(Unknown Source)
   ...

2. java.lang.illegalArgumentException when calling pumpEvents using reflection    stackoverflow.com

I'm trying to make modal frame in Java Applet such like shown here: http://www.java2s.com/Tutorial/Java/0240__Swing/Showthegivenframeasmodaltothespecifiedowner.htm. This code have start() function, that looks like 

public void start() throws Exception {
  Class<?> ...

3. IllegalArgumentException    coderanch.com

Hi Candy, Welcome to JavaRanch. Let me guess, the code you added was an attempt to position the components. Your problem is here: ... xPanel = new fourthPanel(); yPanel = new fifthPanel(); zPanel = new sixthPanel(); ePanel = new ErrorPanel(); /* * This does not center the top panel as you expected. * Instead it causes an IllegalArgumentException to be thrown ...

4. IllegalArgumentException: Width (0) and height (0); Java 1.5 problem    coderanch.com

5. Getting an IllegalArgumentException when using the replace() function    java-forums.org

I'm using grouplayout and I'm trying to switch a Jpanel on and off. I tried using the replace() function, but it only works to display it the first time. When I try to replace it with an empty frame again, I get an Exception and the line "Component must already exist", which is confusing because both Components that I'm working with ...