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Re: ov-java.cc-tst fails on Lubuntu 14.04
From: |
Rik |
Subject: |
Re: ov-java.cc-tst fails on Lubuntu 14.04 |
Date: |
Fri, 05 Jun 2015 09:10:36 -0700 |
On 06/04/2015 09:48 PM, Tatsuro MATSUOKA wrote:
> ----- Original Message -----
>
>> From: Tatsuro MATSUOKA
> To: Rik "octave-maintainers Julien Bect
>> Cc:
>> Date: 2015/6/4, Thu 19:55
>> Subject: Re: ov-java.cc-tst fails on Lubuntu 14.04
>>
>> ----- Original Message -----
>>
>>> From: Rik
>>> To: Tatsuro MATSUOKA ; "octave-maintainers; Julien Bect> Cc:
>>> Date: 2015/6/3, Wed 11:53
>>> Subject: Re: ov-java.cc-tst fails on Lubuntu 14.04
>>>
>>> On 06/02/2015 04:28 PM, Tatsuro MATSUOKA wrote:
>>>>> I was going to wait on the results of your test and
>>>>> then post to octave-maintainers, but you have beaten me to it.
>>>> I apologize my impolite manner.
>>> No need to apologize. It's not polite or impolite. You were simply
>>> working on finding a solution quickly.
>>>
>>>>> assert (javaMethod ("binarySearch",
>>> "java.util.Arrays",
>>>>> single ([90 100 255]), single (255)), 2);
>>>> This works without problem.
>>> Well that's good. Maybe the default numeric type for a 32-bit JRE is
>> float
>>> rather than double? Seems odd though. The 32-bit JRE is supposed to be
>>> about the size of references and therefore about the size of addressable
>>> memory.
>>>
>>> --Rik
>>
>> I have built octave-4.0.0 on lubunutu 12.04 (32bit) using gcc-4.8.1.
>> Interestingly "test ov-java.cc-tst" passes.
>>
>>>> test ov-java.cc-tst
>> PASSES 5 out of 5 tests
>>
>> On lubuntu 14.04 (32 bit), I have used openjdk-7-jdk, openjdk-7-jre,
>> openjdk-7-jre-headless (7u79-2.5.5-0ubuntu)
>> while on 12.04, I have used openjdk-6-jdk, openjdk-6-jre,
>> and openjdk-6-jre-headless (6b35-1.13.7-1ubunutu0.12.04.2).
>>
>> I do not know the difference comes from the openjdk version difference at
>> the
>> moment.
>>
>> On ubuntu 12.04, one can use openjdk-7. I may try it tomorrow if I have time.
>>
>> Tatsuro
>
> The origin of the FAIL in ov-java.cc-tst comes from openjdk-7 on ubuntu 32
> bit.
>
> I have installed the openjdk-7 (it is not default for ubunut 12.04. For 12.04,
> the openjdk-6 is default.) and built octave against it .
>
>>> assert (javaMethod ("binarySearch", "java.util.Arrays", [90 100 255], 255),
>>> 2);
> error: [java] java.lang.ClassCastException: java.lang.Double cannot be cast
> to java.lang.Float
> error: evaluating argument list element number 1
>
> Of course, the modified test that you have shown is passed;
>>> assert (javaMethod ("binarySearch", "java.util.Arrays", single ([90 100
>>> 255]), single (255)), 2);
> I do not know why 32 bit version openjdk-7 changes the behavior from that in
> openjdk-6.
>
> Tatsuro
>
Tatsuro,
You have collected a lot of good information about the bug. Could you file
a bug report at bugs.octave.org so that this information does not get lost?
I think it will require someone very familiar with Octave's Java interface
to work through this, but at least it is narrowed down to 32-bit
architectures running openjdk-7.
--Rik
- Re: ov-java.cc-tst fails on Lubuntu 14.04, Tatsuro MATSUOKA, 2015/06/02
- Re: ov-java.cc-tst fails on Lubuntu 14.04, Rik, 2015/06/02
- Re: ov-java.cc-tst fails on Lubuntu 14.04, Tatsuro MATSUOKA, 2015/06/02
- Re: ov-java.cc-tst fails on Lubuntu 14.04, Rik, 2015/06/02
- Re: ov-java.cc-tst fails on Lubuntu 14.04, Tatsuro MATSUOKA, 2015/06/04
- Re: ov-java.cc-tst fails on Lubuntu 14.04, Tatsuro MATSUOKA, 2015/06/05
- Re: ov-java.cc-tst fails on Lubuntu 14.04, Philip Nienhuis, 2015/06/05
- Re: ov-java.cc-tst fails on Lubuntu 14.04, Tatsuro MATSUOKA, 2015/06/05
- Re: ov-java.cc-tst fails on Lubuntu 14.04,
Rik <=
- Re: ov-java.cc-tst fails on Lubuntu 14.04, Tatsuro MATSUOKA, 2015/06/06