Has anyone encountered (& solved!) the following error: UIDefaults.getUI() failed: no ComponentUI class for: javax.swing.JToolTip[,0,0,0 x0,invalid,alignmentX=null,alignmentY=null,border=,flags=8,maximumSize=,minimumS ize=,preferredSize=,tipText=] I am trying to display a tooltip on a JButton which is on a JPanel (which is placed on another JPanel in an JApplet. I can run the JavaSoft ButtonDemo.java in the same directory as my app and the tooltips display fine!
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