Solved

Please help me understand this Java exception

Posted on 2008-06-13
5
790 Views
Last Modified: 2012-05-05
I have a Java applet that basically downloads a file and draws a progress bar across the screen showing how much of the file is downloaded. I'm getting the following exception, but I don't understand where it's coming from. Can anybody help me? Thanks.

Exception in thread "AWT-EventQueue-1" java.lang.IllegalArgumentException: Invalid remove
   at javax.swing.JTextArea.replaceRange(Unknown Source)
   at com.sun.deploy.util.ConsoleWindow$25.run(Unknown Source)
   at java.awt.event.InvocationEvent.dispatch(Unknown Source)
   at java.awt.EventQueue.dispatchEvent(Unknown Source)
   at java.awt.EventDispatchThread.pumpOneEventForFilter(Unknown Source)
   at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
   at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
   at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
   at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
   at java.awt.EventDispatchThread.run(Unknown Source)
0
Comment
Question by:tjgquicken
  • 2
  • 2
5 Comments
 
LVL 5

Expert Comment

by:ebertk
ID: 21779833
This execption is thrown when you attempt to replace an invalid section of the JTextArea with the method replaceRange.  Do you call this method, if so, could you post some code.  

IllegalArgumentException - if part of the range is an invalid position in the model

replaceRange(String str, int start, int end)

Make sure the start and end are valid for the text currently in the JTextArea.  As a first test, I would simply eliminate the use of the replaceRange and set the entire piece of text in the JTextArea.  If the exception goes away, then it is just a matter of checking the start and end of the JTextArea contents before you call this method (to make sure they are valid)  Or - catch the exception and a handle gracefully.
0
 

Author Comment

by:tjgquicken
ID: 21779910
Here's the problem: I don't have a JTextArea (or anything that extends JTextArea) anywhere in my applet. Could the JTextArea that the exception is referring to be the Java console?
0
 
LVL 5

Assisted Solution

by:ebertk
ebertk earned 225 total points
ID: 21780515
Yes - that could be.  Odd, but yes.  Do you have any code you could post for the applet, I would be happy to take a look.  
0
 
LVL 92

Accepted Solution

by:
objects earned 275 total points
ID: 21787899
Yes thats an exception from the console
0
 

Author Comment

by:tjgquicken
ID: 21789830
Do you know how I can deal with it gracefully? It sort of interrupts my application.
0

Featured Post

Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
Java and GPO 11 73
Java / Linux and Regular Expressions 11 71
Where to store the queries for modification of table 4 55
Java JRE greater than 1.6 5 51
Java had always been an easily readable and understandable language.  Some relatively recent changes in the language seem to be changing this pretty fast, and anyone that had not seen any Java code for the last 5 years will possibly have issues unde…
Go is an acronym of golang, is a programming language developed Google in 2007. Go is a new language that is mostly in the C family, with significant input from Pascal/Modula/Oberon family. Hence Go arisen as low-level language with fast compilation…
Viewers will learn about if statements in Java and their use The if statement: The condition required to create an if statement: Variations of if statements: An example using if statements:
Viewers will learn about basic arrays, how to declare them, and how to use them. Introduction and definition: Declare an array and cover the syntax of declaring them: Initialize every index in the created array: Example/Features of a basic arr…

863 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

25 Experts available now in Live!

Get 1:1 Help Now