Date: 02/14/06 (Code WTF)    Keywords: no keywords

  public void setSelection(final Map ss) {
    super.setSelection(ss);
    this.selection = (Map) Proxy.newProxyInstance(ss.getClass().getClassLoader(), ss.getClass()
        .getInterfaces(), new InvocationHandler() {

      private static final String MEHTOD_PUT = "put";
      private CustomBooleanEditor cbe = new CustomBooleanEditor(true);

      public Object invoke(Object proxy, Method m, Object[] args) throws Throwable {
        if (m.equals(Map.class.getMethod(MEHTOD_PUT, new Class[] { Object.class, Object.class }))) {
          if (args[1] instanceof String) {
            cbe.setAsText((String) args[1]);
            args[1] = cbe.getValue();
          } else if (args[1] instanceof String[]) {
            cbe.setAsText(((String[]) args[1])[0]);
            args[1] = cbe.getValue();
          }
        }
        return m.invoke(ss, args);
      }
    });
  }

Source: http://community.livejournal.com/code_wtf/28004.html