Controller and Agent support use of Java 25

Current Situation

• Controller and Agent can be operated with Java LTS releaes 17 and 21.

Desired Behavior

• With Java 25 becoming available mid of Sep 2025, the Controller and Agent should be operational from this version.

Delimitation

• Controller and Agent use Scala 3.7.3. When used with Java 25 this raises a warning like this:

  WARNING: A terminally deprecated method in sun.misc.Unsafe has been called
  WARNING: sun.misc.Unsafe::objectFieldOffset has been called by scala.runtime.LazyVals$ (file:/opt/sos-berlin.com/js7/controller/lib/3rd-party/org.scala-lang.scala3-library_3-3.7.3.jar)
  WARNING: Please consider reporting this to the maintainers of class scala.runtime.LazyVals$
  WARNING: sun.misc.Unsafe::objectFieldOffset will be removed in a future release
  

• Later Scala versions should not raise the warning. For the time being, the following switch is used in the the Controller's and Agent's start script:

  --sun-misc-unsafe-memory-access=allow