webservice does not work

When I use CF MX7 + JDK 1.6 to write a webservice example, I got the error message in exception.log file.

java.lang.LinkageError: loader constraint violation: loader (instance of coldfusion/bootstrap/BootstrapClassLoader)
previously initiated loading for a different type with name "javax/xml/namespace/QName"


But it is successful when using MX7 + JDK 1.4.

If I have to use MX7 + JDK1.6, is there any solution to solve this problem?


Many thanks,