how to change the jdk version of the sun one appserver 8.1

hi

i have installed appserver8.1 with a jdk 1.5 .

i am facing some problem with the parsers (my application needs to use a crimson parsers which is not supported by jdk1.5 i guess)

so i am trying to change the jdk version by changing the asenv.conf file

but the appservers wont start up if i do so.

help !! please

[353 byte] By [life_java] at [2007-11-26 6:47:39]