Can the JBoss EAP shutdown script password be encrypted ?

Issue

• The EAP shutdown script is currently in plain text. Is it possible to have it encrypted ?

• The JBoss EAP shutdown script authenticates the user as admin and  passes the password in the clear. 

  java -classpath $JBOSS_CP org.jboss.Shutdown -s jnp://localhost:$PORT --shutdown -u admin -p xxxxxx

  Is there a better way to do this ?  If not, could keys be used instead of passing the password to the shell. Someone using 'ps' could see the password.