After I had set JAVA_HOME in the /etc/profile
But Tomcat wasn't happy with that. So I went to Tomcat configuration directly. File: /etc/default/tomcat7
\$ vim /etc/default/tomcat7
... \# The home directory of the Java development kit (JDK). You need at least \# JDK version 1.5. If JAVA\_HOME is not set, some common directories for \# OpenJDK, the Sun JDK, and various J2SE 1.5 versions are tried. \#JAVA\_HOME=/usr/lib/jvm/openjdk-6-jdk JAVA\_HOME=/usr/lib/jvm/java-7-oracle ...