}
}
protected void addNewTab(GumTreeNode gtn, String title, Icon icon, JComponent content) {
JScrollPane tabContent = new JScrollPane(content);
CloseTabComponent tabComponent = new CloseTabComponent(tabbedPane, tabContent) {
@Override
protected void beforeRemoving(int index) {
Component componentAt = tabbedPane.getComponentAt(index);
GumTreeNode key = null;
for (Entry<GumTreeNode, JComponent> entry : getDisplayedNodesTable().entrySet()) {