public void treeChanged(TreeChangeEvent e) {
Object source = e.getSource();
if (source == this.localA) {
if (!this.listeningToLocalA) {
throw new IllegalStateException(ISE_MESSAGE);
}
} else if (source == this.localB) {
this.localA.removeTreeChangeListener(this);
this.listeningToLocalA = false;
} else {
throw new IllegalStateException("bogus event source: " + source);
}
}
void treeChangedSingleArgument(TreeChangeEvent e) {
this.treeChangedSingleArgumentFlag = true;
assertSame(this.testModel, e.getSource());
assertEquals(this.treeName, e.getTreeName());
assertTrue(Arrays.equals(this.path, e.getPath()));
}