BUG : Pow thread is closed abnormally

[qixuan123456]

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Software information (please complete the following information)

• OS version : [eg. MacOS BigSur 11.1.2]
• XDAGJ version : [eg. XDAGJ-0.4.1-Aplha]
• JDK version : [eg. JDK15.0.2]

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Actual behavior
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Can Reproduce(option)
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1. Go to '...'
2. Click on '....'
3. Scroll down to '....'
4. See error

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