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NetBeans include a debugger, profiler and an HTTP monitor that can assist in troubleshooting SOA applications.

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tcpmonplus

tcpmon tcpmonplus allows you to easily view messages as they go back and forth on the wire. The companion utility tcptrace can be used for analysis of the dump.

WSMonitor

WSMonitor in another option to Tcpmon with slightly more functionality.

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Wireshark, a network packet analyzer, is useful for following the routing of SOAP messages. It can also help when you are getting an HTML error message from the server that your CXF client cannot normally process, by allowing you to see the non-SOAP error message. See this blog entry for more information.

SOAP UI

SOAP UI can also be used for debugging. In addition to viewing messages, it allows you send messages and load test your services. It also has plugins for the Eclipse IDE, NetBeans IDE and IntelliJ IDEA.

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WSDL Viewer is a small tool to visualize web-services in a more intuitive way.

SOAP Fault for debugging

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Stack trace in fault details

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