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Problem Document Listener "Attempt to mutate in notification"

 
David Hittel
Greenhorn
Posts: 11
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Hi,

i have following Problem. I have a couple of jTextField's that are registered to a DocumentListener.

I had the problem that i got always the Exception

Exception in thread "AWT-EventQueue-0" java.lang.IllegalStateException: Attempt to mutate in notification
at javax.swing.text.AbstractDocument.writeLock(AbstractDocument.java:1343)
at javax.swing.text.AbstractDocument.replace(AbstractDocument.java:662)
at javax.swing.text.JTextComponent.setText(JTextComponent.java:1441)


Then i was reading a little bit and found a solution, but this solution causes another problem, a endless loop and i get this



I want to call a method "calculate" with just some normal calculation from jTextField values.


The DocumentListener


calls the berechne()



Do you have any solutions, to solve the problem.
 
Don't get me started about those stupid light bulbs.
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