I prefer to run the Sun JDK on my debian servers but this presents a bit of a logistical inconvenience. Because debian now packages OpenJDK instead, all the other Java packages depend on it. What I’d really prefer to do is manually install the (non-packaged) Sun JDK and tell dpkg that the JDK dependency is satisfied so I can still install any java tools directly via apt.
(There is a java-package in debian which is meant to address this by converting the JDK download into an installable package, but unfortunately it appears to always be sufficiently behind in its JDK version support that it has never worked for me.)
Luckily there is an easy way out. I didn’t find an explicit how-to on doing it so writing down these notes for my (and perhaps your) future benefit.
Install the equivs package:
# apt-get install equivs
Create a template for a ‘jdk’ package:
# equivs-control jdk
Edit that template so it provides the necessary content. Adjust this to specific needs on a given system but this is what I’m using currently (if you use this as-is there’s no need to create the template above, but it is useful to see what fields it provides, perhaps they change over time):
Section: misc Priority: optional Standards-Version: 3.9.2 Package: manual-jdk Version: 1.7 Depends: java-common Maintainer: <root@localhost> Provides: java6-runtime-headless, java-compiler, java-virtual-machine, java2-runtime, java2-compiler, java1-runtime, default-jre-headless, openjdk-7-jre-headless, openjdk-7-jre-lib Description: Manually installed JDK JDK was installed manually. This package fulfills dependencies.
Then, build the placeholder package:
# equivs-build jdk
This will produce a .deb package named after the info in the above template, ready to be installed.