Does BPEL support circular flow?

I'm trying to use BPEL as the process flow engine in a project. Since some tasks can be routed all over back to previous steps based on the criteria, I'm wondering if BPEL supports that?
If "while" is the only choice for me to do so, the flow will be quite cumbersome to design.
Thanks.

Yes it does, here is a post that may be useful
Binding Fault invoking an axis2 webService from BPEL
also there is an example in the samples directory for http binding
SOA_HOME/bpel/samples/tutorial/
cheers
James

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