Sure, here is the hierarchy from bottom to top.  At this point, I ran the test 
for about five
minutes (running longer would increase the percentage) and the retained size of 
the one
ContinuationsManagerImpl object is 58% of the total.  The BufferedOutputStream 
is 50% of the
total, so the other 8% is consumed by the objects in between.

org.apache.cocoon.util.BufferedOutputStream
secureOutputStream of  org.apache.cocoon.environment.http.HttpEnvironment
env of  
org.apache.cocoon.components.treeprocessor.ConcreteTreeProcessor$TreeProcessorRedirector
redirector of  org.apache.cocoon.components.flow.java.ContinuationContext
context of  org.apache.cocoon.components.flow.java.Continuation
continuation of  org.apache.cocoon.components.flow.WebContinuation
key of  java.util.TreeMap$Entry
root of  java.util.TreeMap
m of  java.util.TreeSet
ss of  java.util.Collections$SynchronizedSortedSet
expirations of  org.apache.cocoon.components.flow.ContinuationsManagerImpl
this$0 of  org.apache.cocoon.components.flow.ContinuationsManagerImpl$1
m_command of  
org.apache.cocoon.components.thread.DefaultRunnableManager$ExecutionInfo
key of  java.util.TreeMap$Entry
root of  java.util.TreeMap
m of  java.util.TreeSet [Stack Local]


--- Joerg Heinicke <[EMAIL PROTECTED]> wrote:

> On 17.03.2008 20:50, footh wrote:
> > Thanks for all the replies.  I did some more digging
> > into the profiling data.  It turns out that the
> > ContinuationsManagerImpl is at the top of the object
> > path of the byte arrays where 
> > org.apache.cocoon.environment.util.BufferedOutputStream
> > is the actual parent of the arrays.
> 
> Wait, does the ContinuationsManagerImpl store the complete pipeline 
> output? That's the only usage of Cocoon's BufferedOutputStream. Can you 
> show the object hierarchy?
> 
> Joerg
> 
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