Tests for oneway JBossWS example failed (on cxf stack), code used from http://download.devel.redhat.com/devel/candidates/JBEAP5.0.0/JBEAP-5.1.0-CR1/jboss-eap-docs-5.1.0.CR1.zip.
See http://hudson.qa.jboss.com/hudson/view/EAP5-jbossws/job/eap51-jbossws-examples/jdk=java16_default,label=linux,stack=cxf/lastCompletedBuild/testReport/org.jboss.test.ws.jaxws.samples.oneway/OneWayTestCase/testWebService/ verified on my local machine too.

The same tests on WS testsuite work fine (on both native and cxf stack), see Hudson job http://hudson.qa.jboss.com/hudson/view/EAP5-jbossws/job/eap51-jbossws-cxf-sun6/3/jdk=java16_default,label=RHEL4_x86_64/testReport/org.jboss.test.ws.jaxws.samples.oneway/

Changes from testsuite were not probably merged with examples, please prepare patches for Laura Bailey to make new build.