bugGNU Octave - Bugs: bug #48795, javaMethod(instance method,...

 
 

bug #48795: javaMethod(instance method, classname,...) leads to NullPointerException

Submitter:  Ernst Reissner <ernstreissner>
Submitted:  Mon 15 Aug 2016 10:05:09 PM UTC
   
 
Category:  Libraries Severity:  3 - Normal
Priority:  5 - Normal Item Group:  Incorrect Result
Status:  Patch Submitted Assigned to:  None
Originator Name:  Open/Closed:  * Open
Release:  * dev Operating System:  * Any
Fixed Release:  None Planned Release:  None
* Mandatory Fields

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Tue 16 Aug 2016 09:22:58 PM UTC, comment #4: 

Another simplification concerning method isCallableFrom
and added some doxygen.

(file #38234)

 Ernst Reissner <ernstreissner>
Tue 16 Aug 2016 10:52:16 AM UTC, comment #3: 

I added little redesign on find/invoke method/constructor.

(file #38231)

 Ernst Reissner <ernstreissner>
Tue 16 Aug 2016 10:09:02 AM UTC, comment #2: 

Well, this did not work properly, sorry:
did not take into account, that there may be a member method and a static method with the same name.

(file #38229, file #38230)

 Ernst Reissner <ernstreissner>
Tue 16 Aug 2016 10:05:25 AM UTC, comment #1: 

With the new patch I obtain as expected:
octave:1> javaMethod('returnNull','eu.simuline.octave.OctaveInterfaceTester')

error: [java] java.lang.NoSuchMethodException: returnNull
octave:1>


(file #38228)

 Ernst Reissner <ernstreissner>
Mon 15 Aug 2016 10:05:09 PM UTC, original submission:  

javaMethod has two flavors:
- javaMethod(name, object,...) for member methods
- javaMethod(name, classname,...) for class methods.

When mixed up, i.e. javaMethod(name, classname,...),
where name specifies a member method,
the result is a NullPointerException
but should be a  NoSuchMethodException.


Try

javaMethod('returnNull','eu.simuline.octave.OctaveInterfaceTester')
 with the java class attached.

 Ernst Reissner <ernstreissner>

 

(Note: upload size limit is set to 16384 kB, after insertion of the required escape characters.)

Attach Files:
   
   
Comment:
   

Attached Files
file #38235:  patchBug48795E.patch added by ernstreissner (10KiB - text/x-patch - sorry, wrong file. )
file #38234:  patchBug48795D.patch added by ernstreissner (8KiB - text/x-patch)
file #38231:  patchBug48795D.patch added by ernstreissner (8KiB - text/x-patch)
file #38229:  patchBug48795B.patch added by ernstreissner (1KiB - text/x-patch - This is a little rollback. But now I tested very well... Sorry for the inconvenience. )
file #38230:  patchBug48795C.patch added by ernstreissner (9KiB - text/x-patch - This is a little rollback. But now I tested very well... Sorry for the inconvenience. )
file #38228:  patchBug48795.patch added by ernstreissner (6KiB - text/x-patch)
file #38226:  OctaveInterfaceTester.java added by ernstreissner (4KiB - application/x-java)

 

Depends on the following items: None found

Items that depend on this one: None found

 

Carbon-Copy List
  • -email is unavailable- added by mtmiller (Updated the item)
  • -email is unavailable- added by ernstreissner (Submitted the item)
  • -email is unavailable- added by ernstreissner

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    Follow 11 latest changes.

    Date Changed by Updated Field Previous Value => Replaced by
    2016-11-18 mtmiller CategoryNone Libraries
        Item GroupNone Incorrect Result
        StatusNone Patch Submitted
    2016-08-16 ernstreissner Attached File- Added patchBug48795E.patch, #38235
    2016-08-16 ernstreissner Attached File- Added patchBug48795D.patch, #38234
    2016-08-16 ernstreissner Attached File- Added patchBug48795D.patch, #38231
    2016-08-16 ernstreissner Attached File- Added patchBug48795B.patch, #38229
        Attached File- Added patchBug48795C.patch, #38230
    2016-08-16 ernstreissner Attached File- Added patchBug48795.patch, #38228
    2016-08-15 ernstreissner Attached File- Added OctaveInterfaceTester.java, #38226
        Carbon-Copy- Added -email is unavailable-

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