To know the currently active objects

Hi all,
I am facing a problem to know the number of active objects in the JVM for the currently running java application.
I mean iwant to know when they are destroyed and how much memory they are consuming while they are in the heap.
Also i want to know their references.
Can any one suggest me a way to achieve this objective?
Thanks in advance.
Pravat.

Hi,
Just for information, you can perform join with V$SQLTEXT too
select s.username c1, t.sql_text from
v$session s, v$sqltext t
where
s.sql_address = t.address and
s.sql_hash_value = t.hash_value and
s.username is not null
order by s.username, s.prev_sql_addr,s.prev_hash_value, t.piece;Cheers

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To know the currently active objects

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