anchor.diff:  
   function stop() {
     echo -n "Stopping $NAME: "
  -  $SU -c "$TOMCAT_SCRIPT stop" $TOMCAT_USER
  +  $SU -c "$TOMCAT_SCRIPT stop" $TOMCAT_USER >> $TOMCAT_LOG 2>&1
     RETVAL="$?"
   
     if [ "$RETVAL" -eq "0" ]; then
  
positive.code: RETVAL="0"
  TOMCAT_USER="tomcat"
  TOMCAT_SCRIPT="$CATALINA_HOME/bin/catalina.sh"
  SHUTDOWN_WAIT=20
  
  function checkpid() {
  
negative.code:   touch $CATALINA_PID
    chown $TOMCAT_USER:$TOMCAT_USER $CATALINA_PID
  
    $SU -c "$TOMCAT_SCRIPT start" $TOMCAT_USER >> $TOMCAT_LOG 2>&1
    RETVAL="$?"
    if [ "$RETVAL" -eq 0 ]; then 
      echo -n "OK"
  