Message Handler

[Anne Vetter]

I'm trying to implement a handler to process SOAP headers.
Now, I've got one major problem.
Do I have to deploy that handler separately?

My WS works without handlers ... but as soon as I implement my handler in the deploy.wsdd file it just won't work any more.

If I deploy the handler first and then try to deploy the WS, Axis tells me:

Exception - org.apache.axis.ConfigurationException: Can't find handler name:'null' type:'AuthenticationHandler' in the registry

org.apache.axis.ConfigurationException: Can't find handler name:'null' type:'AuthenticationHandler' in the registry
	at org.apache.axis.deployment.wsdd.WSDDChain.makeNewInstance(WSDDChain.java:129)
	at org.apache.axis.deployment.wsdd.WSDDDeployableItem.getNewInstance
(WSDDDeployableItem.java:274)
	at org.apache.axis.deployment.wsdd.WSDDDeployableItem.getInstance(WSDDDeployableItem.java:260)
	at org.apache.axis.deployment.wsdd.WSDDService.makeNewInstance(WSDDService.java:430)

	at org.apache.axis.deployment.wsdd.WSDDDeployment.getDeployedServices(WSDDDeployment.java:503)
	at org.apache.axis.configuration.FileProvider.getDeployedServices(FileProvider.java:296)
	at org.apache.axis.transport.http.AxisServlet.reportAvailableServices
(AxisServlet.java:482)
	at org.apache.axis.transport.http.AxisServlet.doGet(AxisServlet.java:260)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:689)
	at org.apache.axis.transport.http.AxisServletBase.service
(AxisServletBase.java:327)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter
(ApplicationFilterChain.java:173)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
	at 
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
	at org.apache.catalina.core.StandardEngineValve.invoke
(StandardEngineValve.java:107)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
	at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)
	at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection
(Http11BaseProtocol.java:664)
	at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
	at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)

	at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
	at java.lang.Thread.run(Unknown Source)

I just seem not to be able to solve that myself.
I've tried to look for detailed information online, and I've found plenty of stuff about handlers themselves, but not really much about their deployment.