can not shutdwon tomcat 7.0.47

Hi Experts,

I have tomcat installed on AIX 7.1 for Opentext Archive Server, when I shutdown tomcat with the script provided , I can not shutdown, getting below message and eventually tomcat is still running

kgvadm@rpp6576:/otex/apache-tomcat-7.0.47/bin:0> ./shutdown.sh

Using CATALINA_BASE:   /otex/apache-tomcat-7.0.47

Using CATALINA_HOME:   /otex/apache-tomcat-7.0.47

Using CATALINA_TMPDIR: /otex/apache-tomcat-7.0.47/temp

Using JRE_HOME:        /usr/java7_64

Using CLASSPATH:       /otex/apache-tomcat-7.0.47/bin/bootstrap.jar:/otex/apache-tomcat-7.0.47/bin/tomcat-juli.jar

May 08, 2014 3:53:11 PM org.apache.catalina.startup.ClassLoaderFactory validateFile

WARNING: Problem with directory [/otex/apache-tomcat-7.0.47/shared/classes], exists: [false], isDirectory: [false], canRead: [false]

May 08, 2014 3:53:11 PM org.apache.catalina.startup.ClassLoaderFactory validateFile

WARNING: Problem with directory [/otex/apache-tomcat-7.0.47/shared/lib], exists: [false], isDirectory: [false], canRead: [false]

with the grep command , it shows it is still there

kgvadm@mlap2916:/otex/apache-tomcat-7.0.47/bin> ps -ef | grep tomcat

  kgvadm  8978458  9895978   0 17:59:21  pts/1  0:00 grep tomcat

  kgvadm 12910616        1   0   May 02      -  4:32 /usr/java7_64/bin/java -Djava.util.logging.config.file=/otex/apache-tomcat-7.0.47/conf/logging.properties -Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager -XX:MaxPermSize=256m -Xmx1024m -Djava.endorsed.dirs=/otex/apache-tomcat-7.0.47/endorsed -classpath /otex/apache-tomcat-7.0.47/bin/bootstrap.jar:/otex/apache-tomcat-7.0.47/bin/tomcat-juli.jar -Dcatalina.base=/otex/apache-tomcat-7.0.47 -Dcatalina.home=/otex/apache-tomcat-7.0.47 -Djava.io.tmpdir=/otex/apache-tomcat-7.0.47/temp org.apache.catalina.startup.Bootstrap start