question about Java
Michael Butash
michael at butash.net
Tue May 5 08:01:39 MST 2020
I'll stand corrected with the versions of java, it's obviously not my
thing, but simply put, I've never *ever* had openjdk work properly for
anything Java that wasn't specifically built in openjdk. I just don't
bother with it usually as most everything is typically built/tested around
Oracle and Oracle only.
This proved itself true last week firing up JBidwatcher on this system,
only had openjdk, and wouldn't even launch with it. I had to put oracle
java on it to work still.
Most enterprise java apps I have seen in use in businesses require
specific, usually outdated/insecure versions, never get updates because
they break the apps, and rarely work on anything but the platforms they
were built on, so I call bullocks on the compatibility play. It sounds
great in theory, but every practical application I've seen in use in
enterprise ended up a bloody mess.
Much like Flash now, it's just a zombie that won't die, but should imho.
-mb
On Mon, May 4, 2020 at 10:33 PM Joseph Sinclair via PLUG-discuss <
plug-discuss at lists.phxlinux.org> wrote:
> Sorry, Michael, but this is complete bunk.
>
> On 2020-05-04 11:29 AM, Michael Butash via PLUG-discuss wrote:
> > Again OpenJDK and OracleJRE are totally different - including version
> > numbers. If someone says "works with Java 8", they 99.9% of the time
> mean
> > OracleJRE and their versions, and theirs only.
>
> Oracle JRE or JDK is a repackaged OpenJDK build, and nothing more. The
> version numbers are identical. The code is identical. The build process
> is identical. The only thing you get with Oracle builds is the *option* to
> pay for Oracle commercial support.
> In fact, any package in any Linux distro labeled OpenJDK is generally a
> packaging of the Oracle build, which is why OpenJDK 8 builds are no longer
> available easily, as Oracle pulled Java 8 to commercial-only support last
> year.
>
> >
> > OpenJDK is only ever used with, well, I don't even know anymore, as
> > everyone Open Source moved on to hate Java, Oracle, Larry Ellison, etc.
> OpenJDK is, and has always been Open under GPL3
> If you want fully open and community (or commercial from not-Oracle)
> builds of any recent Java version (8+) you can get those from
> adoptopenjdk.org, which is a consortium of large and small companies that
> are supporting continued open access to the GPL3 source code and builds of
> the Java system.
> A huge amount of the internet is running OpenJDK, and a vast array of
> systems are transitioning to the adoptopenjdk builds simply to ensure
> continued access to support from multiple vendors.
>
> > You can pretty safely remove/forget OpenJDK as an end-user at this point
> I
> > think, unless something specifically mentions needing it.
> If you're running Linux, and you need Java, you should be installing the
> OpenJDK package from your distribution, if nothing else to ensure continued
> and frequent updates along with the rest of the system.
> If there is an option for adoptopenjdk for those packages, that's a good
> choice, but the builds from the distribution for Java are made from the
> official codebase that underpins all builds, including Oracle's.
>
> >
> > -mb
> >
>
> Joseph Sinclair
>
> >
> > On Mon, May 4, 2020 at 11:24 AM Michael <bmike1 at gmail.com> wrote:
> >
> >> Thanks for the tip!
> >> So then looking at it it looks as if I have Java 11 installed. Is that
> >> correct?
> >>
> >> apt search oracle jre
> >> ...
> >> i openjdk-11-jre - OpenJDK
> >> Java runtime, using Hotspot JIT
> >> p openjdk-11-jre:i386 - OpenJDK
> >> Java runtime, using Hotspot JIT
> >> p openjdk-11-jre-dcevm - Alternative
> >> VM for OpenJDK 11 with enhanced class redefinition
> >> p openjdk-11-jre-dcevm:i386 - Alternative
> >> VM for OpenJDK 11 with enhanced class redefinition
> >> i openjdk-11-jre-headless - OpenJDK
> >> Java runtime, using Hotspot JIT (headless)
> >> p openjdk-11-jre-headless:i386 - OpenJDK
> >> Java runtime, using Hotspot JIT (headless)
> >> p openjdk-11-jre-zero - Alternative
> >> JVM for OpenJDK, using Zero
> >> p openjdk-11-jre-zero:i386 - Alternative
> >> JVM for OpenJDK, using Zero
> >> p openjdk-8-jre - OpenJDK
> >> Java runtime, using Hotspot JIT
> >> p openjdk-8-jre:i386 - OpenJDK
> >> Java runtime, using Hotspot JIT
> >> p openjdk-8-jre-dcevm - Alternative
> >> VM for OpenJDK 8 with enhanced class redefinition
> >> p openjdk-8-jre-dcevm:i386 - Alternative
> >> VM for OpenJDK 8 with enhanced class redefinition
> >> p openjdk-8-jre-headless - OpenJDK
> >> Java runtime, using Hotspot JIT (headless)
> >> p openjdk-8-jre-headless:i386 - OpenJDK
> >> Java runtime, using Hotspot JIT (headless)
> >> p openjdk-8-jre-zero - Alternative
> >> JVM for OpenJDK, using Zero/Shark
> >> p openjdk-8-jre-zero:i386 - Alternative
> >> JVM for OpenJDK, using Zero/Shark
> >> p spamoracle - statistical
> >> analysis spam filter based on Bayes' formula
> >> p spamoracle:i386 - statistical
> >> analysis spam filter based on Bayes' formula
> >> v spamoracle-byte -
> >> v spamoracle-byte:i386 -
> >>
> >> On Mon, May 4, 2020 at 2:12 PM Michael Butash <michael at butash.net>
> wrote:
> >>>
> >>> OpenJDK and Oracle JRE are two very different beasts. Most java
> >> software is developed against Oracle Java, and if so, rarely I find they
> >> ever work on OpenJDK.
> >>>
> >>> Look up switching to "oracle jre" on your system, Java 8 as they want.
> >> I had to figure this out on my arch system recently, ubuntu should just
> >> have to install it, and switch the system to use it, just forget how
> now.
> >> If nothing else, start with "apt search oracle jre".
> >>>
> >>> Nothing Java ever amounts to any good I've found after ~20 years of it,
> >> I try to use Java as little as possible, scorning any software and
> hardware
> >> (ahem, Cisco) that uses it still. Anything Java behaves badly under
> linux
> >> for me, and the only thing java app I suffer is JBidwatcher for ebay
> >> sniping deals. It behaves badly, randomly, but still the only darn
> thing I
> >> can find like it free.
> >>>
> >>> -mb
> >>>
> >>>
> >>> On Mon, May 4, 2020 at 9:50 AM Michael via PLUG-discuss <
> >> plug-discuss at lists.phxlinux.org> wrote:
> >>>>
> >>>> I want to download a program, ImageJ. I went to the download page and
> >> see:
> >>>>
> >>>> Unfortunately, due to the ongoing transition from Java 6 to Java 8,
> >>>> this download of "plain ImageJ2" cannot currently be updated to the
> >>>> latest Java-8-compatible version. See the Java 8 page for details. For
> >>>> the time being, we recommend using the Fiji distribution of ImageJ to
> >>>> stay current with updates.
> >>>>
> >>>> Curious as to what version of Java I have....
> >>>>
> >>>> ~$ java -version
> >>>> openjdk version "11.0.7" 2020-04-14
> >>>> OpenJDK Runtime Environment (build
> 11.0.7+10-post-Ubuntu-2ubuntu218.04)
> >>>> OpenJDK 64-Bit Server VM (build 11.0.7+10-post-Ubuntu-2ubuntu218.04,
> >>>> mixed mode, sharing)
> >>>>
> >>>> So they are a bit behind?
> >>>> --
> >>>> :-)~MIKE~(-:
> >>>> ---------------------------------------------------
> >>>> PLUG-discuss mailing list - PLUG-discuss at lists.phxlinux.org
> >>>> To subscribe, unsubscribe, or to change your mail settings:
> >>>> https://lists.phxlinux.org/mailman/listinfo/plug-discuss
> >>
> >>
> >>
> >> --
> >> :-)~MIKE~(-:
> >>
> >
> >
> >
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