At the end, and only a few clicks later, I moved the demo to the NetBeans Platform, installing it in the IDE's "output" window position. (I created a suite, which included two library wrappers, for the beans binding JAR and the original app JAR, together with my functionality module that provides the TopComponent, which creates the new window in the IDE.) Now, I can change the text in the JTextField below and then immediately the text in the ticker is changed. Why? Because the relevant property in the ticker bean is bound to the Swing component (in real life, when you run the app, the yellow banner with the blue text is moving from right to left, like a "ticker", such as is found on the bottom of the screen on CNN, for example):
Take my advice and follow the Ticker Demo and you too will find out what it's all about.