Public bug reported:
I don't see the value in openjdk-6-jre-headless recommending the
additional VMs icedtea-6-jre-cacao and icedtea-6-jre-jamvm. Java
defaults to the -server VM and I don't think any Java package requires
CACAO or JamVM, so these packages will go unused by nearly all Ubuntu
Java users. Anyone knowledgeable enough to specify a different VM can
install them, just like the Zero/Shark JVM.
As I understand it, a package can suggest other packages instead of
recommending them, so they won't be installed.
I was able to remove the icedtea-6-jre-jamvm package from my Kubuntu 12.04
amd64 system, but trying to remove icedtea-6-jre-cacao leads to a warning that
"The following packages will be REMOVED:
ca-certificates-java{u} icedtea-6-jre-cacao java-common{u}
openjdk-6-jre-headless{u}
openjdk-6-jre-lib{u} tzdata-java{u}"
So maybe there's some other dependency overlooked by `aptitude why
icedtea-6-jre-cacao` besides "openjdk-6-jre-headless Recommends".
A limitation of the Ubuntu (Debian?) packaging system is it doesn't
explain why one package recommends or suggests other packages. The only
way I know to learn the motivation for a packaging decision is to google
for it, or file a dubious bug like this one.
ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: openjdk-6-jre-headless 6b24-1.11.1-4ubuntu3
ProcVersionSignature: Ubuntu 3.2.0-23.36-generic 3.2.14
Uname: Linux 3.2.0-23-generic x86_64
ApportVersion: 2.0.1-0ubuntu6
Architecture: amd64
Date: Sun Apr 22 03:20:57 2012
ProcEnviron:
LANGUAGE=
TERM=xterm
LANG=en_US.UTF-8
SHELL=/bin/zsh
SourcePackage: openjdk-6
UpgradeStatus: Upgraded to precise on 2012-02-05 (77 days ago)
** Affects: openjdk-6 (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug precise
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https://bugs.launchpad.net/bugs/986814
Title:
OpenJDK should not recommend additional JVM packages
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