SearchContext.java 文件源码

@Override
public SearchContext clone() {
    try {
        SearchContext context = null;
        context = (SearchContext)super.clone();
        // Don't copy over listeners
        context.support = new PropertyChangeSupport(context);
        return context;
    } catch (CloneNotSupportedException cnse) { // Never happens
        throw new RuntimeException("Should never happen", cnse);
    }
}