android: Fix Java lint errors

[zhongqiliang]

This commit addresses several minor Java linting issues within the
Android codebase. These changes include removing an extraneous blank
line after an import statement, correcting comment block formatting,
and ensuring files end with a newline character. Adhering to these
style guidelines improves code consistency and prevents lint
warnings during the build process.

Bug: 467778593

[github-actions]

🤖 Gemini Suggested Commit Message

---

android: Fix Java lint errors

This change addresses several minor Java linting issues within the
Android codebase. This includes removing an extraneous blank line,
correcting comment block formatting, and ensuring files end with a
newline character. Adhering to these style guidelines improves code
consistency and prevents lint warnings during the build process.

Bug: 467778593

---

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1. Influence the Result: Want to change the output? You can write custom prompts or instructions directly in the Pull Request description. The model uses that text to generate the message.
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[gemini-code-assist]

Code Review

This pull request addresses several Java linting issues. The changes to correct Javadoc formatting and add a newline at the end of the file are appropriate. However, one change adds an extra blank line, which is stylistically questionable and contradicts the PR's stated goal of removing blank lines. I've added a comment with a suggestion to fix this.

[zhongqiliang]

Same as #8476, there is workflow fails on 8476.