@Override
public void dispose() {
if (myDndManager != null) {
if (myDropTarget != null) {
myDndManager.unregisterTarget(myDropTarget, myTree);
myDropTarget = null;
}
if (myDragSource != null) {
myDndManager.unregisterSource(myDragSource, myTree);
myDragSource = null;
}
myDndManager = null;
}
setTreeBuilder(null);
myTree = null;
myTreeStructure = null;
}
