[Java] java license auto format has no blank line before package declation

[chaokunyang]

Describe the bug
Java license auto format has no blank line before package declation, which conflict with checkstyle plugin
To Reproduce

mvn -T10  clean license:format                            
mvn -T10  clean checkstyle:check                       

Expected behavior
A clear and concise description of what you expected to happen.

Screenshots
If applicable, add screenshots to help explain your problem.

Environment (please complete the following information):

• OS: [e.g. Linux/Ubuntu]
• JDK [e.g. jdk8]
• Python
• Gcc/Clang
• Go
• NodeJS
• Fury Version [e.g. 22]

Additional context
Add any other context about the problem here.