Loading images from a standard Java Swing library correctly

I solved the problem in the meantime.
It seems to be a problem of case sensitivity.

My icon is named Join_Bevel.png, so large "B" for Bevel.

If I write

Code:

label.setIcon(new ImageIcon(getClass().getResource("/at/netcrystals/crystallography/swing/Join_bevel.png"), "Join bevel"));//NOI18N



Samll "b" for the Term "Join_bevel.png" it works for Java standard project without Netbeans but not in Netbeans.
If I write

Code:

label.setIcon(new ImageIcon(getClass().getResource("/at/netcrystals/crystallography/swing/Join_Bevel.png"), "Join bevel"));//NOI18N



Large "B" for the Term "Join_Bevel.png" it works for Java standard project and in Netbeans.

I reproduced this now severall times and can't understand it. The source code for loading must be the same, or?

Thanks.

Regards,
klaus