service tomcat7 start fails, but the process exists and tomcat is running

Question

I have been trying to install tomcat7 on ubuntu docker images with apt-get install tomcat7. The installation works fine and starting tomcat from the catalina.sh wo

Answer 1

I encountered this. I fixed it (finally) by adding JAVA_HOME=/usr/lib/jvm/java-8-oracle to /etc/default/tomcat7. For some reason it was using that JAVA_HOME to actually run the process, but it was using /usr/lib/jvm/default-java to check if the process was running. This confused it, so it never detected that the process was running.