There is no cask for java 7

[moonfruit]

General troubleshooting steps

• I have checked the instructions for reporting bugs (or making requests) before opening the issue.
  • None of the templates was appropriate for my issue, or I’m not sure.
• I ran brew update-reset && brew update and retried my command.
• I ran brew doctor, fixed as many issues as possible and retried my command.
• I understand that if I ignore these instructions, my issue may be closed without review.

Description of issue

We have casks for java6, java (8) even java9-beta, but why there is no cask for java 7?

[commitay]

Oracle moved java 7 behind a login.

https://github.com/caskroom/homebrew-versions/pull/3914