Re: Undetected JRE

[Personal]

> On Dec 17, 2017, at 2:44 AM, PhilipNienhuis <address@hidden> wrote:
> 
> Bradley Kennedy wrote
>>> On 2017-12-16, at 23:43, Daryl Lee &lt;
> 
>> daryl@
> 
>> &gt; wrote:
>>> 
>>> Today I had yet another occasion to build up a Windows workstation from
>>> scratch.  When I got to the step of installing Octave (4.2.1) the
>>> installer told me it couldn't fine a Java JRE, even though I have Java
>>> 9.0.1 installed, as evidenced by the output of
>>> 
>>>> java -version
>>> 
>>> Is that anything for me to worry about?  At first glance, it looks normal
>>> (working GUI, working plots).
> 
> Issues arise when mixing a 64-bit Octave with a 32-bit JRE, or vice versa.
> Did you check that?
> 
> Last time I looked (years ago) OpenJDK builds for Windows proved to be very
> unstable.
> 
> 
>> 
>> Hi there Daryl,
>> 
>> There should be (mostly) no issue. We ran Octave 4.2.1 on super computers
>> for months without Java due to a broken link. You obviously however, can’t
>> use Java based components.
>> 
>> https://www.gnu.org/software/octave/doc/v4.2.1/Java-Interface.html#Java-Interface
>> &lt;https://www.gnu.org/software/octave/doc/v4.2.1/Java-Interface.html#Java-Interface&gt;
>> 
>> I had a patch made at one point to let you change the Java directory at
>> run time (rather now it is set at compile time afaik) but I don’t think
>> anyone was interested in it.
> 
> I can imagine that for Windows such a patch is obsolete as esp. on Windows
> the place where Java lives is very well defined and uniform across Windows
> versions, and easily uncovered by user programs.
> AFAICR from last time I installed Java, the installer didn't even allow to
> select the place where Java was to be installed.
> 
> For Linux and OSX things are quite different.
> 
> (Just curious) Where is that patch?
> 
> Philip
> 
> 
> 
> --
> Sent from: 
> http://octave.1599824.n4.nabble.com/Octave-Maintainers-f1638794.html
> 

I was careful to select 64-bit everything, and installed in the default 
location.  I guess I’ll deal with the issue if and when it becomes an issue.

Thanks!