access denied TOMCAT with -security

[henri]

hello everybody:
so as i told you in the subject i get an exception like this one when
i start tomcat with ./bin/startup.sh -security :

java.lang.reflect.InvocationTargetException:
java.lang.ExceptionInInitializerError:
java.security.AccessControlException: access denied
(java.util.PropertyPermission jaxp.debug read)
at java.security.AccessControlContext.checkPermission(AccessControlContext.java:272)
at .........

even if i remove everything in the tomcat.policy file
even if i put in server.xml
<Parameter name="clientAuth" value="false"/>
i checked , as tomcat faq says, that the java.security of jdk1.3.1 has
the line:
package.access=sun.

but nothing works and i can't find an answer with faq or news
archive...

could someone help me
i need it to set a servlet as a rmi client

henri