[INFO] {
[INFO]     "address" => [("interface" => "custom_interface")],
[INFO]     "operation" => "add",
[INFO]     "any-address" => true
[INFO] }

[INFO] {
[INFO]     "address" => [("interface" => "custom_interface")],
[INFO]     "operation" => "remove"
[INFO] }

[ERROR] 2011-11-17 15:40:31,114 [ERROR] Message{conciseMessage='Error: Failed to remove interface custom_interface', detailedMessage='{"domain-failure-description" => "JBAS014749: Operation handler failed: JBAS014666: Duplicate resource [(\"interface\" => \"custom_interface\")]"}', fired=Thu Nov 17 15:40:31 CET 2011, severity=Error, options=[]}