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ThemePainter ClassCastException Office2003Painter Jide [message #819876]

Tue, 13 March 2012 12:36

Eclipse User

Hi,

I am using Eclipse Indigo, with built in WindowBuilder, and we also use Jidesoft components.
Sometimes when I open design mode, it can not parse the code successfully, given this as an error:

java.lang.ClassCastException: com.jidesoft.plaf.office2003.Office2003Painter cannot be cast to com.jidesoft.plaf.basic.ThemePainter
	at com.jidesoft.plaf.basic.BasicJideButtonUI.installDefaults(Unknown Source)
	at com.jidesoft.plaf.basic.BasicJideButtonUI.installUI(Unknown Source)
	at javax.swing.JComponent.setUI(Unknown Source)
	at com.jidesoft.swing.JideButton.updateUI(Unknown Source)
	at javax.swing.AbstractButton.init(Unknown Source)
	at javax.swing.JButton.<init>(Unknown Source)

The Office2003Painter is subclass of ThemePainter.
The reason is of the ClassCastException is somewhere with the classloaders.
Could anyone give me advise to avoid this?

Thank you in advance,
Szabi

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Re: ThemePainter ClassCastException Office2003Painter Jide [message #819904 is a reply to message #819876]

Tue, 13 March 2012 13:17

Eclipse User

We saw couple times sometimes like this in the past.
Most probably JIDE tries to set some global state in JVM/Swing (for example to cache something) which conflicts then with classes loaded within new ClassLoader after reparse.

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