OIC, Oracle SOA, OSB, Weblogic

If you are placing a catch block in your service invocation and trying to catch a system remotefault/bindingfault  , you can have following issues : 1. First , your faultVariable is not having any child element like code,summary and detail which are part of the RuntimeFault.  2.  Second, when you try to compile the composite, you get below error: Error(76): WSDL messageType "{http://schemas.oracle.com/bpel/extension}bindingFault" of variable "" is not defined in any of the WSDL files  Reason for above issues and solution: The reason why you get this is because when you select the system->RuntimeFault as type of fault in your fault handler, JDeveloper copies a wsdl named RuntimeFault.wsdl  from your <JDEVELOPER_HOME%\\integration\seed\soa\shared\bpel directory to your project and this wsdl contains following msg : <?xml version="1.0" encoding="UTF-8"?> <definitions name="RuntimeFault"              targetNames

What is singleton Property in SOA?       In the clustered environment when the processing of the message should happen via only one SOA managed server, then the property singleton needs to be defined at the adapter level.          What is a pick activity? Can I have a pick activity with no onMessage branch?         Pick activity picks the messages from service (Source) which has multiple operations or the BPEL process needs to receive the messages from multiple source system. Pick activity should have at least on Message branch.       What is a flow activity? What is a flowN activity and how does it leverages the flow activity? F   Flow activity is used, when parallel execution of the flow is needed and to use this property “non blocking invoke should be set as true “at the partner link level and no. of execution of parallel flow is defined and static. Where as in Flown the no. of execution of parallel flow is not static and it is determined d