Installing glibc.6 version 2.2 from SuSE 7.1 to 7.0

hi, I need to run Java2 SDK 1.3.1 which needs glibc 2.2, on a 7.0 installation which has a 2.1. In theory installing both of them should be fine, as the ld will at load time sort out dependencies of executables. But, is it safe to get the 7.1 rpm and do it ? has anyone done that ? cheers -- John