Re: question about Java

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Author: Michael Butash via PLUG-discuss
Date:  
To: Michael
CC: Michael Butash, Main PLUG discussion list
Subject: Re: question about Java
Oh, you probably need commercial repos in ubuntu now. Oracle (anything) is
technically not free. At best it wants your soul, at worst it wants cash,
as oracle jre 9 wants cash to use it from developers. Which only hastens
its death unless that's all a developer knows. Everyone in India learns it
as a second language since 1999, it's the only reason it still exists.

-mb


On Mon, May 4, 2020 at 11:29 AM Michael Butash <> 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.
>
> 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.
> You can pretty safely remove/forget OpenJDK as an end-user at this point I
> think, unless something specifically mentions needing it.
>
> -mb
>
>
> On Mon, May 4, 2020 at 11:24 AM Michael <> 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 <> 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 <
>> > 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 -
>> >> To subscribe, unsubscribe, or to change your mail settings:
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>>
>>
>>
>> --
>> :-)~MIKE~(-:
>>
>

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