Context variable DRIXMD (namespace DR$APPCTX) shows up in v$context

Question

We have recently upgraded our database to Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production.
Now we occasionally get the error in one of our APEX applications
ORA-01031: insufficiënt privileges
The apex application is using a user connection pool.
When an Apex page is submitted we clear the context variables so the user won’t use each other’s settings.
The context variables to be cleared are selected from V$CONTEXT.
For some reason the context variable DRIXMD (namespace DR$APPCTX) is now (since the upgrade to 11.2) also shown in v$context.
The package used in our code is not allowed to set variables in namespace DR$APPCTX and is raising the error.
My question is:
Is it a normal feature to see these context variables in V$CONTEX and if not is there a fix available?
And if yes, can anyone clarify this?
Thanks in advance.

Answer 1

Success!!!
I had to grant this permissions:
call dbms_java.grant_permission( 'WS_TEST', 'SYS:java.lang.RuntimePermission', 'getClassLoader', '' );
call dbms_java.grant_permission( 'WS_TEST', 'SYS:java.lang.RuntimePermission', 'accessClassInPackage.sun.util.calendar', '' );
call dbms_java.grant_permission( 'WS_TEST', 'SYS:java.lang.RuntimePermission', 'setFactory', '' )
call dbms_java.grant_permission( 'WS_TEST', 'SYS:java.util.PropertyPermission', 'HTTPClient.socket.idleTimeout', 'write' );
call dbms_java.grant_permission( 'WS_TEST', 'SYS:java.net.SocketPermission', 'localhost', 'resolve' );
call dbms_java.grant_permission( 'WS_TEST', 'SYS:java.net.SocketPermission', '127.0.0.1:8084', 'connect,resolve' );
As I wrote earlier, WS_TEST is my user into which I load JAX-RPC client. Note that, if you load JAX-RPC client into user another than SYS, you have NOT to use -s -grant public option (wassam wrote about this too). Another thing is that I (finally) didn't load OC4J. To consume WebService I use utl_dbws.invoke(call_Handle CALL, request SYS.XMLTYPE) function.
voytec001