SQLDeveloper & 11g Hierarchical Profiler

11g's introduces heirarchical profiler (to learn about Heirarchical profiler click here) . SQLDEVELOPER has a tab which displays profiler details
However, the first time I tried to run it from SQLDeveloper, I came across a waring/error viz; tables/directory missing ( the error was something like this: "Required tables DBMSHP_FUNCTION_INFO,DBMSHP_PARENT_CHILD_INFO,DBMSHP_RUNS missing")
So I logged in as SYS, created PLSHPROF_DIR and granted READ,WRITE access on this directory to "srini" user.
commands I used are given below:

CREATE OR REPLACE directory PLSHPROF_DIR as '/tmp/Oraprofiles';
grant READ, WRITE on directory PLSHPROF_DIR to Srini;
grant execute on DBMS_HPROF to Srini;
grant create table to Srini;
grant create sequence to Srini;
grant unlimited tablespace to Srini;
finally ran the script ran the script dbmshptab.sql
Rerunning the test procedure provided me the profiler results shown above.