[Octave-bug-tracker] [bug #48813] Java interface: untyped []

[Ernst Reissner]

URL:
  <http://savannah.gnu.org/bugs/?48813>

                 Summary: Java interface: untyped []
                 Project: GNU Octave
            Submitted by: ernstreissner
            Submitted on: Thu 18 Aug 2016 11:34:25 AM GMT
                Category: None
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: None
                  Status: None
             Assigned to: None
         Originator Name: 
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: dev
        Operating System: Any

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Details:

This may be a bug or not: 
Matlab's java interface represents null on Java side 
as [] on Matlab side. 

In octave typeinfo([]) is null_matrix 
but class([]) is double. 

This does not fit that for non-null Java references 
typeinfo(x) is octave_java 
and class(x) returns the Java classname, 

because null has no class in Java: 
null.getClass() thows NullpointerException 
and null is used in all reference classes. 
Null can be casted to all we want. 

Is there some solution to that? how does Matlab behave here????




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