Nagios Core unable to read output

Hi,

I am using the plugin to monitor threads and sessions as below but the Nagios core server is unable to read the output. Running these check manually (as commands) on the client host is working though.

command[check_tomcat_threads]=/usr/bin/sudo -u tomcat7 /usr/local/nagios/libexec/check_jvm -n org.apache.catalina.startup.Bootstrap -p threads -w 105 -c 135
command[check_tomcat_conn]=/usr/bin/sudo -u tomcat7 /usr/local/nagios/libexec/check_jvm -n org.apache.catalina.startup.Bootstrap -p sessions -w 280 -c 360

Locally running the command:
# /usr/bin/sudo -u tomcat7 /usr/local/nagios/libexec/check_jvm -n org.apache.catalina.startup.Bootstrap -p threads -w 105 -c 135
CRITICAL 153 |threads=153;;;

Any suggestions?

Thanks.