@Test
public void testTreeStructureChangedNullPath() {

    support.fireTreeStructureChanged(null);
    assertEquals(1, report.getEventCount());
    assertEquals(1, report.getStructureEventCount());
    TreeModelEvent structureEvent = report.getLastStructureEvent();
    assertNull(structureEvent.getChildren());
    assertNull(structureEvent.getTreePath());
    assertNull(structureEvent.getPath());
}