ec2 security group can't be deleted

[liang cheng]

Hi,

I'm trying to use "jclouds-examples/compute-basics" to deploy and undeploy
EC2 nodes. The deployment works fine. When I try to undeploy ("destroy")
the node, I found the "security group" created by jclouds can't be deleted.

Below is the log printed.

>> destroying nodes in group liang
                                    -  >> destroying nodes
matching(And(Not(TERMINATED),inGroup(liang)))               -  >>
destroying node(us-east-1/i-f8391506)
                        -  << destroyed node(us-east-1/i-f8391506)
success(false)                                         -  << destroyed(1)

                          -  >> deleting
incidentalResources({region=us-east-1, name=liang})
  -  >> deleting securityGroup(jclouds#liang)
                                  -  << inUse
incidentalResources({region=us-east-1, name=liang})
    -  >> deleting incidentalResources({region=us-east-1, name=liang})
                      -  >> deleting securityGroup(jclouds#liang)
                                                      -  << inUse
incidentalResources({region=us-east-1, name=liang})
    -  >> deleting incidentalResources({region=us-east-1, name=liang})
                      -  >> deleting securityGroup(jclouds#liang)
                                                      -  << inUse
incidentalResources({region=us-east-1, name=liang})
    -  >> deleting incidentalResources({region=us-east-1, name=liang})
                      -  >> deleting securityGroup(jclouds#liang)
                                                      -  << inUse
incidentalResources({region=us-east-1, name=liang})
    -  >> deleting incidentalResources({region=us-east-1, name=liang})
                      -  >> deleting securityGroup(jclouds#liang)
                                                      -  << inUse
incidentalResources({region=us-east-1, name=liang})
    -  >> deleting incidentalResources({region=us-east-1, name=liang})
                      -  >> deleting securityGroup(jclouds#liang)
                                                      -  << inUse
incidentalResources({region=us-east-1, name=liang})


Is this issue expected for jclouds at EC2 ?

Thanks,
-Liang