Re: [CentOS] Firefox 68 jnlp files

[Clark, Patti via CentOS]

icedtea-web  package included with the distros is the plugin that handles 
javaws for firefox for both RHEL/CentOS 6 and 7 and openjdk.  I have yet to 
find an app that cannot use openjdk instead of oracle java.  It may be a little 
less streamlined, but it's functional.  Ignore/cancel any pop ups that talk 
about updating java.

If I missed this answer, I apologize as I receive the digests.

Patti Clark
Sr. Linux System Administrator
Oak Ridge National Laboratory

>>>>>>>
Date: Thu, 14 Nov 2019 16:21:03 +
From: James Pearson 
To: 
Subject: Re: [CentOS] Firefox 68 jnlp files
Message-ID: <1a787894-bbcb-799b-eba9-210c2a8ce...@moving-picture.com>
Content-Type: text/plain; charset="UTF-8"; format=flowed

isdtor wrote:
>
> It seems that firefox 68.x, as distributed with CentOS6 updates, no longer 
> allows opening jnlp files with javaws
>
> The "Choose Helper Application" window popping up after selecting "Open 
> with/Other" has a predefined list of applications that cannot be customised.
>
> I'm sure it must be a configuration issue as this works fine with the same 
> browser on other distributions, but what to look for?
>
> # alternatives --display javaws
> javaws - status is auto.
>   link currently points to /usr/java/latest/jre/bin/javaws
> /usr/java/latest/jre/bin/javaws - priority 20
> Current `best' version is /usr/java/latest/jre/bin/javaws.
> # ll -L /etc/alternatives/javaws
> -rwxr-xr-x 1 root root 140296 Dec 15  2018 /etc/alternatives/javaws
> #

Don't know about CentOS6, but with CentOS7, the selection of apps that
you can use appear to map to '.desktop' files?

If it is the same on CentOS6, then you might be able to set up a
suitable .desktop file (e.g. in /usr/share/applications/ or similar) to
do what you want ...

No idea if this is of any help

James Pearson

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Re: [CentOS] Firefox 68 jnlp files

[James Pearson]

isdtor wrote:


It seems that firefox 68.x, as distributed with CentOS6 updates, no longer 
allows opening jnlp files with javaws

The "Choose Helper Application" window popping up after selecting "Open 
with/Other" has a predefined list of applications that cannot be customised.

I'm sure it must be a configuration issue as this works fine with the same 
browser on other distributions, but what to look for?

# alternatives --display javaws
javaws - status is auto.
  link currently points to /usr/java/latest/jre/bin/javaws
/usr/java/latest/jre/bin/javaws - priority 20
Current `best' version is /usr/java/latest/jre/bin/javaws.
# ll -L /etc/alternatives/javaws
-rwxr-xr-x 1 root root 140296 Dec 15  2018 /etc/alternatives/javaws
#


Don't know about CentOS6, but with CentOS7, the selection of apps that 
you can use appear to map to '.desktop' files?


If it is the same on CentOS6, then you might be able to set up a 
suitable .desktop file (e.g. in /usr/share/applications/ or similar) to 
do what you want ...


No idea if this is of any help

James Pearson
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Re: [CentOS] Firefox 68 jnlp files

[isdtor]

Leroy Tennison writes:
> Not knowing what kind of server management you're looking for I can only make 
> general suggestions.  We found that the removal of Java support (actually 
> NSAPI in favor of the Pepper API which Oracle has stated they won't support) 
> left us with limited IPMI (iLO, DRAC, whatever) functionality.  And, looking 
> at https://en.wikipedia.org/wiki/Java_Web_Start, Oracle has stopped 
> supporting javaws.  In our case (SuperMicro) we found two things: their newer 
> hardware had switched to HTML5/iKVM which didn't require Java and SuperMicro 
> had supplied non-browser-based (but Java-based) programs which supplied 
> equivalent functionality for the legacy hardware.  My recommendation would be 
> to look into those alternatives.
> Java Web Start - Wikipedia
> In computing, Java Web Start (also known as JavaWS, javaws or JAWS) is a 
> framework developed by Sun Microsystems (now Oracle) that allows users to 
> start application software for the Java Platform directly from the Internet 
> using a web browser.Some key benefits of this technology include seamless 
> version updating for globally distributed applications and greater control of 
> memory allocation to ...
> en.wikipedia.org

This is about firefox. I was able to add custom helper applications on previous 
versions, or pick an executable from the filesystem tree to achieve this. This 
version of firefox doesn't allow that, it has a predefined list of helper apps 
taht cannot be updated. If it somehow generates that list from OS config files, 
I am wondering which those are.

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Re: [CentOS] Firefox 68 jnlp files

[Leroy Tennison]

Not knowing what kind of server management you're looking for I can only make 
general suggestions.  We found that the removal of Java support (actually NSAPI 
in favor of the Pepper API which Oracle has stated they won't support) left us 
with limited IPMI (iLO, DRAC, whatever) functionality.  And, looking at 
https://en.wikipedia.org/wiki/Java_Web_Start, Oracle has stopped supporting 
javaws.  In our case (SuperMicro) we found two things: their newer hardware had 
switched to HTML5/iKVM which didn't require Java and SuperMicro had supplied 
non-browser-based (but Java-based) programs which supplied equivalent 
functionality for the legacy hardware.  My recommendation would be to look into 
those alternatives.
Java Web Start - Wikipedia<https://en.wikipedia.org/wiki/Java_Web_Start>
In computing, Java Web Start (also known as JavaWS, javaws or JAWS) is a 
framework developed by Sun Microsystems (now Oracle) that allows users to start 
application software for the Java Platform directly from the Internet using a 
web browser.Some key benefits of this technology include seamless version 
updating for globally distributed applications and greater control of memory 
allocation to ...
en.wikipedia.org




From: CentOS  on behalf of isdtor 
Sent: Thursday, November 14, 2019 8:17 AM
To: centos@centos.org 
Subject: [EXTERNAL] Re: [CentOS] Firefox 68 jnlp files

isdtor writes:
> It seems that firefox 68.x, as distributed with CentOS6 updates, no longer 
> allows opening jnlp files with javaws
>
> The "Choose Helper Application" window popping up after selecting "Open 
> with/Other" has a predefined list of applications that cannot be customised.
>
> I'm sure it must be a configuration issue as this works fine with the same 
> browser on other distributions, but what to look for?
>
> # alternatives --display javaws
> javaws - status is auto.
>  link currently points to /usr/java/latest/jre/bin/javaws
> /usr/java/latest/jre/bin/javaws - priority 20
> Current `best' version is /usr/java/latest/jre/bin/javaws.
> # ll -L /etc/alternatives/javaws
> -rwxr-xr-x 1 root root 140296 Dec 15  2018 /etc/alternatives/javaws
> #

No replies, really? Lack of this facility makes browser and platform unusable 
for server management.

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Harriscomputer

Leroy Tennison
Network Information/Cyber Security Specialist
E: le...@datavoiceint.com


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Re: [CentOS] Firefox 68 jnlp files

[isdtor]

isdtor writes:
> It seems that firefox 68.x, as distributed with CentOS6 updates, no longer 
> allows opening jnlp files with javaws
> 
> The "Choose Helper Application" window popping up after selecting "Open 
> with/Other" has a predefined list of applications that cannot be customised.
> 
> I'm sure it must be a configuration issue as this works fine with the same 
> browser on other distributions, but what to look for?
> 
> # alternatives --display javaws  
> javaws - status is auto.
>  link currently points to /usr/java/latest/jre/bin/javaws
> /usr/java/latest/jre/bin/javaws - priority 20
> Current `best' version is /usr/java/latest/jre/bin/javaws.
> # ll -L /etc/alternatives/javaws
> -rwxr-xr-x 1 root root 140296 Dec 15  2018 /etc/alternatives/javaws
> # 

No replies, really? Lack of this facility makes browser and platform unusable 
for server management.

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