Re: ov-java.cc-tst fails on Lubuntu 14.04

[Tatsuro MATSUOKA]

----- Original Message -----
> From: Rik 
> To: Tatsuro MATSUOKA ; "octave-maintainers; Julien Bect <address@hidden>
> Cc: 
> Date: 2015/6/3, Wed 08:12
> Subject: Re: ov-java.cc-tst fails on Lubuntu 14.04
> 
> On 06/02/2015 03:31 PM, Tatsuro MATSUOKA wrote:
>>  ----- Original Message -----
>>>  From: Rik 
>>>  To: Tatsuro MATSUOKA 
>>>  Date: 2015/6/3, Wed 03:50
>>>  Subject: Re: ov-java.cc-tst fails on Lubuntu 14.04
>>> 
>>> 
>>>  On 06/01/2015 09:00 AM, address@hidden wrote:
>>> 
>>>  Subject:  ov-java.cc-tst fails on octave 4.0.0 on lubuntu 14.04 
>>>>  From:  Tatsuro MATSUOKA <address@hidden> 
>>>>  Date:  05/31/2015 11:37 PM 
>>>>  To:  "address@hidden" 
> <address@hidden> 
>>>>  List-Post:  <mailto:address@hidden> 
>>>>  Content-Transfer-Encoding:  quoted-printable 
>>>>  Precedence:  list 
>>>>  MIME-Version:  1.0 
>>>>  Reply-To:  Tatsuro MATSUOKA <address@hidden> 
>>>>  Message-ID:  <address@hidden> 
>>>>  Content-Type:  text/plain; charset=iso-8859-1 
>>>>  Message:  3 
>>>> 
>>>>  I have built octave 4.0.0 on Ubuntu 14.04 LTS (amd64) and Lubuntu 
> 14.04. On Ubuntu 14.04 LTS (amd64),make check shows no FAIL after workaround 
>>  $ export LD_PRELOAD=/usr/lib/x86_64-linux-gnu/libGL.so. On  Lubuntu 14.04 
> (32bit), I have met the following FAIL.
>>  libinterp/octave-value/ov-java.cc-tst ....................... PASS      
> 4/5  
>>                                                                    FAIL    1 
> 
>>>>>>>>>  processing 
> /home/matsuokalab/work/octave/octave-4.0.0/build/libinterp/octave-value/ov-java.cc-tst
>  
> 
>>>>  ***** testif HAVE_JAVA
>>   assert (javaMethod ("binarySearch", 
> "java.util.Arrays", [90 100 255], 255), 2);
>>   assert (javaMethod ("binarySearch", 
> "java.util.Arrays", uint8 ([90 100 255]), uint8 (255)) < 0);
>>   assert (javaMethod ("binarySearch", 
> "java.util.Arrays", uint8 ([90 100 128]), uint8 (128)) < 0);
>>   assert (javaMethod ("binarySearch", 
> "java.util.Arrays", uint8 ([90 100 127]), uint8 (127)), 2);
>>   assert (javaMethod ("binarySearch", 
> "java.util.Arrays", uint16 ([90 100 128]), uint16 (128)), 2);
>>  !!!!! test failed
>>  [java] java.lang.ClassCastException: java.lang.Double cannot be cast to 
> java.lang.Float I have used openjdk-7-jdk, openjdk-7-jre, openjdk-7-headless 
> (7u79-2.5.5-0ubuntu).
>>>  Tatsuro,
>>> 
>>>  Can you run each of the assert lines individually to see which one
>>      fails?  
>> 
>>>>  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
>>>>  assert (javaMethod ("binarySearch", 
> "java.util.Arrays", uint8 ([90 100 255]), uint8 (255)) < 0);
>>>>  assert (javaMethod ("binarySearch", 
> "java.util.Arrays", uint8 ([90 100 128]), uint8 (128)) < 0);
>>>>  assert (javaMethod ("binarySearch", 
> "java.util.Arrays", uint8 ([90 100 127]), uint8 (127)), 2);
>>>>  assert (javaMethod ("binarySearch", 
> "java.util.Arrays", uint16 ([90 100 128]),uint16 (128)), 2);
>>  The first line gives an error.
>> 
>>>  It's pretty hard to see why Ubuntu 14.04 would pass, but
>>      Lubuntu 14.04 would fail.  One difference is that the first build is
>>      64 bit, while the second is 32 bit.  Is it possible to install a
>>      Lubuntu version that is 64 bit?
>> 
>>   I found the thread which reports the same FAIL after I post this one.
>>   
> http://octave.1599824.n4.nabble.com/Report-on-my-first-4-0-0-build-on-Ubuntu-14-10-32-bits-td4670563.html
>  
> 
>>   
>>   Julien Bect uses Ubuntu 14.10 / 32 bits / gcc 4.9.1.
>> 
>>    Perhaps this issue does not depend on whether ubuntu or lubuntu. It seems 
> to depend on whether 32 bit or 64 bit.
> 
> Yes, I saw that too.  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'm
> convinced that the real issue is whether the JRE is 32-bit or 64-bit. 
> Maybe as confirmation, does this work?
> 
> assert (javaMethod ("binarySearch", "java.util.Arrays", 
> single ([90 100 255]), single (255)), 2);
> 
> This tries to keep everything in floats, rather than doubles, when calling
> java.
> 
> --Rik


> 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.

> assert (javaMethod ("binarySearch", "java.util.Arrays", 
> single ([90 100 255]), single (255)), 2);


This works without problem.

Tatsuro