protected void addImpl(final Component comp, final Object constraints, final int index) {
if (isRootPaneCheckingEnabled()) {
getContentPane().add(comp, constraints, index);
return;
}
super.addImpl(comp, constraints, index);
}
/**
* Set rootPane property.
*
* @param root
*/
protected void setRootPane(final JRootPane root) {
if (rootPane != null) {
remove(rootPane);
}
rootPane = root;
if (root != null) {
super.addImpl(root, null, 0);
}
}