In picketlink-sts quickstart step Undeploy and Remove the Security Domain Using the JBoss CLI, executing the EAP7_HOME/bin/jboss-cli.sh --file=undeploy-and-remove-security-domain.cli command does not clean up the environment properly, leaving the server in the following state:

[standalone@localhost:9990 /] :read-attribute(name=suspend-state)
{
    "outcome" => "success",
    "result" => "RUNNING",
    "response-headers" => {"process-state" => "reload-required"}
}

Suggested fix
Replace the current commands of undeploy-and-remove-security-domain.cli with the following

batch
undeploy jboss-picketlink-sts.war
/subsystem=security/security-domain=picketlink-sts:remove
run-batch

reload

This will also require the replacement of expected output in point 2 of Undeploy and Remove the Security Domain Using the JBoss CLI of the readme file with the following:

The batch executed successfully
process-state: reload-required