Are the ACM Java Libraries used in real life?

Is the ACM JTF's Java libraries used in real life, or just prepared for student开发者_如何学Pythons to make their study less complicated?

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According to the ACM Java Task Force charter:

To review the Java language, APIs, and tools from the perspective of introductory computing education and to develop a stable collection of pedagogical resources that will make it easier to teach Java to first-year computing students without having those students overwhelmed by its complexity.

So I doubt any of their code is actually intended for use in "real life" projects...