Oracle 9i installation on solaris 9

i am installing oracle 9i on solaris 9. i did all the initial settings but during installation it is giving following error...
Error in setting permissions of file/directory
/u01/app/oracle/jre/1.3.1/bin/.java_wrapper

I have checked the permissions.
please help if anybody knows the workaround for this...

Thanks

Try to chmod 777 while you are installing the product and set to 755 after installed.

I did that but still it is giving same error.

Thanks