JBoss on Openshift does not start when the java security manager is enabled

I am working with a customer that is running into issues with JBoss on OpenShift.

In particular, they are having issues getting JBoss to work while using the java security manager (-secmgr). Here is the error they are seeing:

java.lang.IllegalStateException: The LogManager was not properly installed (you must set the "java.util.logging.manager" system property to "org.jboss.logmanager.LogManager")
at org.jboss.logmanager.Logger.getLogger(Logger.java:58)
at org.jboss.as.server.Main.main(Main.java:84)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.jboss.modules.Module.run(Module.java:317)
at org.jboss.modules.Main.main(Main.java:473)
```

I was able to recreate this issue locally (outside of Openshift). It seems to be caused by the use of the -Xbootclasspath JVM option. It looks like Openshift is setting the option to look like the following:

-Xbootclasspath/p:/opt/eap/jboss-modules.jar:/opt/eap/modules/system/layers/base/.overlays/layer-base-jboss-eap-6.4.16.CP/org/jboss/logmanager/main/jboss-logmanager-1.5.7.Final-redhat-1.jar:/opt/eap/modules/system/layers/base/org/jboss/logmanager/ext/main/jboss-logmanager-ext-1.0.0.Alpha2-redhat-1.jar

I was able to recreate the issue locally using the following -Xbootclasspath setting:

-Xbootclasspath/p:jboss-modules.jar:modules/system/layers/base/org/jboss/logmanager/main/jboss-logmanager-1.5.7.Final-redhat-1.jar

In my testing, I was getting a ClassCastException in the org.jboss.logmanager.Logger.getLogger(String) method:

main[1] print name
name = "stdout"
main[1] stop
Breakpoints set:
breakpoint org.jboss.logmanager.Logger.getLogger(java.lang.String)
main[1]

main[1] print e
e = "java.lang.ClassCastException: java.util.logging.Logger cannot be cast to org.jboss.logmanager.Logger"
main[1]

It looks like the OpenShift start script is attempting to use a special log manager implementation (jboss-logmanager-ext-1.0.0.Alpha2-redhat-1.jar). Is that correct? If so, what is the reason for this?

I do not see any java security manager permission failures.