Just like C/C++ front-end change which Zack committed/tested for me,
the Java front-end had forgot to add the unordered tree codes to the
list of tree codes which act as comparisons to truthvalue_conversion
language hook when the new tree codes were added.
The C/C++ change is referenced here:
<http://gcc.gnu.org/ml/gcc-patches/2004-05/msg01458.html>
ChangeLog:
* expr.c (java_truthvalue_conversion): Handle
UNEQ_EXPR, UNLE_EXPR, UNGE_EXPR, UNLT_EXPR, UNGT_EXPR,
ORDERED_EXPR, and UNORDERED_EXPR as comparison operators,
i.e. return the expression.