Hi,

Using the new 3/2/4/ MingW binary I can't get the graphics backend changed.

octave-3.2.4.exe:1> backend ('gnuplot')
error: [java] org.octave.graphics.PropertyException: invalid default 
property - defaultfigure__backend__
error: called from:
error: 
C:\Programs\Octave\3.2.4_gcc-4.4.0\share\octave\packages\jhandles-0.3.5\__jhandles_set.m
 
at
  line 40, column 2
error: 
C:\Programs\Octave\3.2.4_gcc-4.4.0\share\octave\3.2.4\m\plot\backend.m 
at line 63, column 5
     ### or:
octave-3.2.4.exe:1> backend ('fltk')
error: [java] org.octave.graphics.PropertyException: invalid default 
property - defaultfigure__backend__
error: called from:
error: 
C:\Programs\Octave\3.2.4_gcc-4.4.0\share\octave\packages\jhandles-0.3.5\__jhandles_set.m
 
at
  line 40, column 2
error: 
C:\Programs\Octave\3.2.4_gcc-4.4.0\share\octave\3.2.4\m\plot\backend.m 
at line 63, column 5


Debugging this I finally arrive at a java call in __java_set.m at line 
31 (*not* line 40 as suggested above - that's rather where the 
unwind_protect_cleanup block bails out, it's not the actual error 
location; BTW is that behaviour a bug too?):

debug> handle.set (varargin{k}, varargin{k+1})
error: [java] org.octave.graphics.PropertyException: invalid default 
property - defaultfigure__backend__

( "defaultfigure__backend__" is arg 1 to __java_set.m, arg 2 = "gnuplot" 
( or "fltk"); )

Well, that's as far as I can get with my limited octave/java proficiency.

What's going wrong here?

Philip

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