Fwd: Octave 4 installer doesn't detect JRE at install time

[John Frain]

John C Frain, Ph.D.

Economics Department             3 Aranleigh Park
Trinity College Dublin                 Rathfarnham
College Green                           Dublin 14
Dublin 2                                    Ireland
Ireland
www.tcd.ie/Economics/staff/frainj/home.htm
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---------- Forwarded message ----------
From: John Frain <address@hidden>
Date: 6 June 2015 at 20:28
Subject: Re: Octave 4 installer doesn't detect JRE at install time
To: Philip Nienhuis <address@hidden>


On 6 June 2015 at 13:37, Philip Nienhuis <address@hidden> wrote:
> Will wrote
>> Hi all,
>>
>> Today I downloaded and installed the Octave 4.0 release from here
>> https://ftp.gnu.org/gnu/octave/windows/, but got a warning about not
>> detecting the java runtime environment. This was true - it wasn't
>> installed, so I went and grabbed the JRE and JDK (64-bit, version 8
>> update 45), rebooted windows, and tried to install Octave again. But,
>> the installer still threw the warnings about not detecting the JRE. I
>> accepted all the defaults during installation of the JRE and JDK, and
>> installed in the standard path (C:/Program Files/Java/jre1.8.0_45). Any
>> idea what I need to do to get Octave to detect the JRE at install time?
>> The Java integration was something I was quite looking forward to!
>>
>> Thanks in advance (hope I'm not missing the obvious!)
>
> What does (in the Octave terminal)
>
> system ("java -version")
>
> tell you?
>
> If you get an error, try to open a cmd window (usually in Start Menu |
> Accessories) and enter
> java  -version
> there.
>
> (BTW just to be sure - did you install Octave in a path without spaces? the
> installer should check that, but ...)
>
> Philip
>
>
>
>
> --
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> Sent from the Octave - General mailing list archive at Nabble.com.
>
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I have also had the problem that the octave installer can not find the
java run-time environment and I get a warning about less
functionality.

In octave when I enter

>> java -version
error: 'java' undefined near line 1 column 1
>>

At the cmd window I get

> java -version
java version "1.8.0_20"
Java(TM) SE Runtime Environment (build 1.8.0_20-b26)
Java HotSpot(TM) 64-Bit Server VM (build 25.20-b23, mixed mode)               >

This is not of particular importance to me at the moment and I had
presumed that it was possibly some conflict between a presumed 32-bit
octave and 64-bit java?

Best Regards

John



John C Frain, Ph.D.

Economics Department             3 Aranleigh Park
Trinity College Dublin                 Rathfarnham
College Green                           Dublin 14
Dublin 2                                    Ireland
Ireland
www.tcd.ie/Economics/staff/frainj/home.htm
mailto:address@hidden
mailto:address@hidden