This is not the Library folder in your home directory, this is the Library folder in the root file system on your main disk.
So in Terminal the command
cd /Library/Java/JavaVirtualMachines/jdk1.8.0_91.jdk
should work.
For different releases of Java replace jdk1.8.0_91.jdk with the appropriate release.
To list what is in the directory use:
ls /Library/Java/JavaVirtualMachines