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+## Copyright (C) 2012-2013 Rik Wehbring
+##
+## This file is part of Octave.
+##
+## Octave is free software; you can redistribute it and/or modify it
+## under the terms of the GNU General Public License as published by
+## the Free Software Foundation; either version 3 of the License, or (at
+## your option) any later version.
+##
+## Octave is distributed in the hope that it will be useful, but
+## WITHOUT ANY WARRANTY; without even the implied warranty of
+## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+## General Public License for more details.
+##
+## You should have received a copy of the GNU General Public License
+## along with Octave; see the file COPYING.  If not, see
+## <http://www.gnu.org/licenses/>.
+
+## -*- texinfo -*-
+## @deftypefn  {Built-in Function} {@var{val} =} java_unsigned_conversion ()
+## @deftypefnx {Built-in Function} {@var{old_val} =} java_unsigned_conversion (@var{new_val})
+## @deftypefnx {Built-in Function} {} java_unsigned_conversion (@var{new_val}, "local")
+## Query or set the internal variable that controls how integer classes are
+## converted when Java matrix autoconversion is enabled.  When enabled, Java
+## arrays of class Byte or Integer are converted to matrices of class uint8 or
+## uint32 respectively.
+## 
+## When called from inside a function with the @qcode{"local"} option, the
+## variable is changed locally for the function and any subroutines it calls.
+##  The original variable value is restored when exiting the function.
+## @seealso{java_unsigned_autoconversion, java_convert_matrix, debug_java}
+## @end deftypefn
+
+function old_val = java_unsigned_conversion (varargin)
+
+  persistent warned = false;
+  if (! warned)
+    warned = true;
+    warning ("Octave:deprecated-function",
+             "java_unsigned_conversion is obsolete and will be removed from a future version of Octave; use java_unsigned_autoconversion instead");
+  endif
+
+  if (nargin > 2)
+    print_usage ();
+  endif
+
+  old_val = java_unsigned_autoconversion (varargin{:});
+
+endfunction
+