Message1510

After figuring out that the affected method in this case is __mod__ fixing the problem was pretty easy. The patch is available at http://jython.org/patches/1671304 and it includes following test added to Lib/test/test_str2unicode.py.

def test_string_formatting(self):
    self.assertEquals(unicode, type('%s' % u'x'))
    self.assertEquals(unicode, type('%s %s' % (u'x', 'y')))

(I also replaced few tabs with spaces in Lib/test/test_str2unicode.py. Hope that's ok. If not, I won't touch them in the future.)