java.lang.ClassCastException: This exception has no message.

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via Oracle Community by 807587, 1 year ago
This exception has no message.
at joyconn.MyTreeCellRenderer.getTreeCellRendererComponent(
at javax.swing.plaf.basic.BasicTreeUI$NodeDimensionsHandler.getNodeDimensions(
at javax.swing.tree.AbstractLayoutCache.getNodeDimensions(
at javax.swing.tree.VariableHeightLayoutCache$TreeStateNode.updatePreferredSize(
at javax.swing.tree.VariableHeightLayoutCache$TreeStateNode.getPreferredWidth(
at javax.swing.tree.VariableHeightLayoutCache.getMaxNodeWidth(
at javax.swing.tree.VariableHeightLayoutCache.getPreferredWidth(

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