Debugging Swing GUI with Eclipse

Question

Is it normal that whenever I debug a Java application that has a swing gui using Eclipse it fails to debug properly whenever it reaches a line that has something to do with swing.

Heres an example:

int number = 0; //Debugs fine
textbox.setText(Integer.toString(number)); //Takes me to this window saying "Source not Found"

Below is an image detailing what comes up when the debugger reaches a line that has something to do with the swing GUI:

Answer 1

1. Make sure you have a JDK installed; there should be a file src.zip in the root folder of your Java installation. Without that, Eclipse can't find the sources.

2. Make sure Eclipse picks up the sources. There must a tiny overlay over the JARs in the JRE definition dialog for the first 5 entries or so. The more important one is rt.jar

Answer 2

There may be chance that you have put the your debug Break Point on source class too. i would like you to follow the following suggestion.

• Go to window
• go to souce view
• choose break point from there
• once it is opened then click on double close icon on top of break point. then all break point are flush try new break point for debugging

i hope this will work for you.