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Re: java in Linux question

Mauriat Miranda wrote:
On 5/12/06, Paul Howarth <paul city-fan org> wrote:

The list of problems on the JavaFAQ page relates to the native Java
implementation using gcj, not Sun Java. The link Dan referred to for the
"JPackage method" shows how to install Sun Java in a way that coexists

This method does make the assumption that someone wants both Java
implementations  and wants more than the JRE. I would doubt those are
good assumptions for new users.

I wouldn't say it was an "assumption"; it enables multiple java implementations but certainly doesn't assume that's what's wanted.

The "install to /opt" option is just a
16MB download and 5 minutes of configuration, whereas the above
requires 45MB JDK download, repackaging and yum installing for a 132MB
of packages to install. I would say thats a bit excessive (possibly
unnecessary) for new users.

True. It would be nice if the JPackage people provided a JRE-only solution that skipped all the -devel stuff and would make for smaller downloads.

For coexisting, the /opt method co-exists very nicely. It would be
just better to say: "DO NOT install the Sun RPM" and/or "Java
DEVELOPMENT in FC4+ highly recommends Jpackage setup". Which makes
perfect sense as it casts a distinction between developers and common

Yes, that makes sense.

Maybe someone should add to the FAQ: Do I need both the Runtime and
the Compiler? Or something to that effect. There just seems to be some
ambiguity there.


nicely with other java implementations you might install, and is managed
using rpm just like most of the other software on the system.

Managed like other rpms ... So if sun put out a 5.0 Update 7 for
security tomorrow would I not be required to repeat the whole process
of compilation from another 45MB download?

Unfortunately so. It's a shame about Sun's licensing terms that forbid distribution of repackaged binaries.

Installing Java "the JPackage way" also has the benefit of making
available the large number of ready-packaged Java applications in the
JPackage repository, which is very useful if your interest in Java stems
from more than just the browser plugin.

If I were to guess, majority of people are interested in merely the
JRE. Don't misunderstand me, the jpackage solution is well done.

This is just my opinion based on what's practical for general recommendations.

You make good points.


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