Maven goal ,,mvn clean install" in the examples and integration tests does not deploy archives to the application server which is included in the EAP5 CR1. I have tested it on the JBAS 5.1.0.GA too.

From Maven debug log:
org.codehaus.mojo:jboss-maven-plugin:1.3.2
[DEBUG] Configuring mojo 'org.codehaus.mojo:jboss-maven-plugin:1.3.2:deploy' -->
[DEBUG] (f) deployUrlPath = /jmx-console/HtmlAdaptor?action=invokeOpByName&name=jboss.system:service%3DMainDeployer&methodName=deploy&argType=java.net.URL&arg0=
[DEBUG] (f) fileNameEncoding = UTF-8
[DEBUG] (f) hostName = localhost
[DEBUG] (f) port = 8080

Deploy URL path is accessible from the browser without any problems.