Newer versions of JAX-WS (2.2.6 or higher) expect usage of com.sun.xml.ws.transport.Headers instead of java.util.HashMap. To avoid a ClassCastException when your application makes a webservice call, uncomment the following configuration property in the IntroscopeAgent.profile file:
This change does not have any impact on cross-process or cross-JVM transaction tracing. It will also not break the old functionality. If the application has two JAX-WS implementations for different features of the application, both will work when this property is enabled.