RemoteAWTHierarchyListener.java 文件源码

public void eventDispatched(AWTEvent event) {
    HierarchyEvent e = (HierarchyEvent) event;
    if ((e.getChangeFlags() & HierarchyEvent.PARENT_CHANGED) != 0) {
        Component c = e.getChanged();
        Container p = c.getParent();
        if (p == null) {
            // Component was removed from the hierarchy
            components.remove(c);
        } else {
            Throwable t = new RuntimeException();
            StringWriter sw = new StringWriter();
            t.printStackTrace(new PrintWriter(sw));
            String stackTrace = sw.toString();
            String stackLine = getComponentAddStackLine(stackTrace);
            components.put(c, stackLine);
        }
    }
}