Reinitialize shaded `com.google.protobuf.UnsafeUtil` class #40946

Job	Run time
CI Sanity Check	31s
Attach pull request number	4s
Initial JDK 17 Build	10m 25s
Calculate Test Jobs	12s
Maven Tests - JDK 17	7m 12s
JVM Tests - JDK 17	14m 50s
Maven Tests - JDK 17 Windows	11m 10s
JVM Tests - JDK 21	15m 49s
Gradle Tests - JDK ${{ matrix.java.name }}	0s
JVM Tests - JDK 17 Windows	7m 46s
Devtools Tests - JDK ${{ matrix.java.name }}	0s
Kubernetes Tests - JDK 17	4m 42s
Kubernetes Tests - JDK 21	4m 39s
Quickstarts Compilation - JDK 17	6m 15s
Kubernetes Tests - JDK 17 Windows	3m 18s
Native Tests - Messaging1	33m 31s
Native Tests - HTTP	7m 10s
MicroProfile TCKs Tests	0s
Native Tests - Virtual Thread - Messaging	4m 11s
Build report	29s
	2h 12m 14s

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