Remover open-jdk:
sudo apt-get purge openjdk-\*
Instalar Oracle JDK
sudo add-apt-repository ppa:webupd8team/java
sudo apt-get update
sudo apt-get install oracle-java8-installer
update-alternatives --config java
Instalacão do Tomcat manualmente.
https://tomcat.apache.org/download-80.cgi
wget "TAR.GZ URL"
sudo mkdir /opt/tomcat
sudo tar xvf apache-tomcat-7*tar.gz -C /opt/tomcat --strip-components=1
editar tomcat-users.xml — Admin User
nano /opt/tomcat/conf/tomcat-users.xml
<tomcat-users>
<user username="admin" password="password" roles="manager-gui,admin-gui"/>
</tomcat-users>
TOMCAT AUTOSTART
nano /etc/init.d/tomcat
#!/bin/bash
### BEGIN INIT INFO
# Provides: tomcat7
# Required-Start: $network
# Required-Stop: $network
# Default-Start: 2 3 4 5
# Default-Stop: 0 1 6
# Short-Description: Start/Stop Tomcat server
### END INIT INFO
PATH=/sbin:/bin:/usr/sbin:/usr/bin
export JAVA_HOME=/usr/lib/jvm/java-8-oracle/jre/bin/java
export CATALINA_HOME=/opt/tomcat
start() {
sh /opt/tomcat/bin/startup.sh
}
stop() {
sh /opt/tomcat/bin/shutdown.sh
}
case $1 in
start|stop) $1;;
restart) stop; start;;
*) echo "Run as $0 <start|stop|restart>"; exit 1;;
esac
SH Permissions
chmod 755 /etc/init.d/tomcat
update-rc.d tomcat defaults