`tools/sincechecker/modules/jdk.management/JdkManagementCheckSince` fails in CRaC JDK:
```
jdk.crac.management: package-info.java exists but doesn't contain @since
java.lang.Exception: The `@since` checker found 1 problems
at SinceChecker.checkModule(SinceChecker.java:284)
at SinceChecker.main(SinceChecker.java:145)
at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:104)
at java.base/java.lang.reflect.Method.invoke(Method.java:565)
at com.sun.javatest.regtest.agent.MainWrapper$MainTask.run(MainWrapper.java:138)
at java.base/java.lang.Thread.run(Thread.java:1447)

JavaTest Message: Test threw exception: java.lang.Exception: The `@since` checker found 1 problems
JavaTest Message: shutting down test

STATUS:Failed.`main' threw exception: java.lang.Exception: The `@since` checker found 1 problems
```

We could also add a since-check test for `jdk.crac` module to detect such problems there.