[Java] Checkstyle fixes. #8036

Job	Run time
Java Topology Tests (JDK 17, ubuntu-24.04)	2m 48s
C++ GCC 6 (Ubuntu 20.04)	10m 15s
Java 17 (ubuntu-24.04)	4m 37s
C++ GCC 7 (Ubuntu 20.04)	9m 29s
Java 17 (windows-latest)	9m 1s
C++ GCC 8 (Ubuntu 20.04)	9m 47s
C++ Clang 19 debug build	10m 15s
Java 17 (macos-latest)	5m 51s
Java 21 (ubuntu-24.04)	4m 37s
Java 21 (windows-latest)	7m 47s
C++ Clang 9 (Ubuntu 20.04)	10m 59s
Java 21 (macos-latest)	6m 28s
C++ Clang 10 (Ubuntu 20.04)	10m 59s
C++ GCC 9 (Ubuntu 20.04)	10m 17s
C++ Clang 11 (Ubuntu 20.04)	11m 0s
C++ Clang 13 (Ubuntu 24.04)	10m 45s
C++ Clang 14 (Ubuntu 24.04)	10m 7s
C++ Clang 12 (Ubuntu 20.04)	11m 17s
C++ GCC 10 (Ubuntu 20.04)	10m 20s
C++ Clang 15 (Ubuntu 24.04)	9m 57s
C++ GCC 11 (Ubuntu 24.04)	9m 40s
C++ Clang 16 (Ubuntu 24.04)	10m 2s
C++ Rocky 8 (10)	11m 24s
C++ GCC 12 (Ubuntu 24.04)	10m 51s
C++ GCC 13 (Ubuntu 24.04)	10m 24s
C++ GCC 14 (Ubuntu 24.04)	10m 49s
C++ Clang 17 (Ubuntu 24.04)	10m 16s
C++ Clang 18 (Ubuntu 24.04)	10m 13s
C++ MSVC (Windows)	16m 51s
C++ Clang 19 (Ubuntu 24.04)	10m 19s
C++ Xcode (macOS)	12m 1s
	4h 59m 26s

Provide feedback