Hot to add java to CageFS

If you would like to make java available from CageFS inside you have to follow this sptes:

1. Create /etc/cagefs/conf.d/java.cfg and add needed binary files to it:

[java-custom]
comment=Java-custom
paths=/usr/bin/java, /etc/alternatives/java,/usr/java/jdk1.8.0_05/jre/bin/java

2. Add ‘/usr/java‘ into /etc/cagefs/cagefs.mp file

3. Update skeleton and remount all:

cagefsctl --force-update

cagefsctl --remount-all