Solve error "Allowing Tomcat to shutdown...."

Haz 04, 2013 4:15:26 PM org.apache.catalina.core.StandardContext listenerStart
SEVERE: Skipped installing application listeners due to previous error(s)
Haz 04, 2013 4:15:26 PM org.apache.catalina.core.StandardContext startInternal
SEVERE: Error listenerStart
Haz 04, 2013 4:15:26 PM org.apache.catalina.core.StandardContext startInternal
SEVERE: Context [] startup failed due to previous errors
SEVERE: Context [] failed in [org.apache.catalina.core.StandardContext] lifecycle. Allowing Tomcat to shutdown.
Haz 04, 2013 4:15:26 PM org.apache.coyote.AbstractProtocol start
INFO: Starting ProtocolHandler ["http-nio-8080"]

Problem: Your system doesn't JRE ?