所以我知道这是一个老问题，但是最近我遇到了相信这个问题，并希望分享找到的解决方案(尽管我对为什么起作用没有任何见识).

So I know this is an old question, but I ran into what I believe to be the same issue recently and wanted to share the solution I found (although I have no insight as to why it works).

如图

转到主类的运行配置"，然后在参数"选项卡上，取消选中显示使用SWT启动时使用-XstartOnFirstThread参数"的框.

Go to Run Configurations for the main class, and on the "Arguments" tab, uncheck the box where it says "Use the -XstartOnFirstThread argument when launching with SWT".

添加一个直观的问题示例，以便比我可能更了解的人解释为什么会发生这种情况/为什么此解决方案有效:

To add a visual example of the problem so that someone more knowledgable than I can possibly explain why this happens/why this solution works:

这是您尝试运行程序时得到的.名为"java"的应用程序似乎正在运行，但未显示任何内容.

This is what you get when you try to run the program. An application simply called "java" appears to be running, but nothing is showing.

我希望这些信息能够对某人有所帮助.

I hope this information is able to help someone.