[Enhancement] Method may fail to clean up stream or resource[WatchFileManagerTest]

[Alonexc]

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• I had searched in the issues and found no similar issues.

Enhancement Request

located at:
eventmesh-common/src/test/java/org/apache/eventmesh/common/file/WatchFileManagerTest.java line 54,56
analysis and explanation:
The method creates an IO stream object, does not assign it to any fields, pass it to other methods that might close it, or return it, and does not appear to close the stream on all paths out of the method. This may result in a file descriptor leak. It is generally a good idea to use a finally block to ensure that streams are closed.

Describe the solution you'd like

use try-with-resources to manage resources.

Are you willing to submit PR?

• Yes I am willing to submit a PR!

[Ht12137]

I am new to the community,can i solve the problem?

[pandaapo]

I am new to the community,can i solve the problem?

Because PR #4274 has not been modified according to the review for a long time, you can submit a new PR to complete this issue. Welcome!

因为PR #4274长时间没有按照review修改，您可以提交新的PR来完成该issue。欢迎！

[NiuXiangQian]

As a newbie, I would love to try to complete this fix job.

[Pil0tXia]

Completed in #4716.