谢谢大家！我设法使它工作.我安装了最新的Eclipse IDE 2020-09

Thanks everyone! I managed make it work. I installed the latest Eclipse IDE 2020-09

版本:2020-09(4.17.0)内部版本号:20200910-1200

Version: 2020-09 (4.17.0) Build id: 20200910-1200

重新安装jdk15.0.1并将其放置在Modulepath而不是Classpath下，并且它现在可以工作.

Installed jdk15.0.1 back and placed it under Modulepath not under Classpath and it is working now.

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