We are getting the following failure when running the Activation TCK on Java 21:

Buildfile: /mnt/hudson_workspace/activation/activation-tck/build.xml
[mkdir] Created dir: /mnt/hudson_workspace/activation/activation-tck/JTwork
[mkdir] Created dir: /mnt/hudson_workspace/activation/activation-tck/JTreport-Pluggability

run:
[javatest.batch] java.lang.UnsupportedOperationException: The Security Manager is deprecated and will be removed in a future release
[javatest.batch] at java.base/java.lang.System.setSecurityManager(System.java:429)
[javatest.batch] at com.sun.javatest.JavaTestSecurityManager.install(JavaTestSecurityManager.java:84)
[javatest.batch] at com.sun.javatest.tool.Main.run(Main.java:291)
[javatest.batch] at com.sun.javatest.tool.Main.main0(Main.java:150)
[javatest.batch] at com.sun.javatest.tool.Main.main(Main.java:130)
[javatest.batch] Java Result: 4