Linux Mint - adding environment variables permanently

I'm running Linux Mint 18.3 Cinnamon. The changes in file ~/.profile got picked up only after I logged out/in from the account. The terminal restart was not enough in my case.

Run bash -xl to see which startup files are loaded with your shell. .profile may actually not be read. Otherwise try adding export to your assignment:

export PATH=$PATH:/home/paul/avatar-gf-1.0-ea/glassfish4/bin/

Reference about Bash's startup files: Bash Startup Files

Try this in the ~/.pam_environment in your home folder. If it does not exist then create it:

PATH DEFAULT=${PATH}:/home/paul/avatar-gf-1.0-ea/glassfish4/bin/

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