[ https://issues.jboss.org/browse/WFLY-10242?page=com.atlassian.jira.plugin... ] David Lloyd commented on WFLY-10242: ------------------------------------ There is no circumstance, past or present, where {{-secmgr}} was allowed, added, or supported in {{JAVA_OPTS}}. The old way to run with a security manager, before (I believe) WF 10, was to pass the system property {{java.security.manager}} in to the JVM's arguments. After WF 10, the way to do it was to pass {{-secmgr}} into the startup script, which in turn put {{-segmgr}} into the argument list of JBoss Modules (_not_ the JVM itself) causing our own security manager to be enabled. -- This message was sent by Atlassian JIRA (v7.5.0#75005)