This fairly straightforward WAR: http://markmc.fedorapeople.org/rhevm-api-mock.war includes RESTEasy, Spring and uses JAX-B. Test using: $> wget -O - --http-user=foo --http-password=bar --header='Accept: application/xml' http://localhost:8080/rhevm-api-mock/ resteasy-jaxb-provider pulls in stax-api, but we exclude it from the WAR in order to avoid this error with EAP5: java.lang.LinkageError: loader constraint violation: when resolving field "DATETIME" the class loader (instance of org/jboss/classloader/spi/base/BaseClassLoader) of the referring class, javax/xml/datatype/DatatypeConstants, and the class loader (instance of <bootloader>) for the field's resolved type, javax/xml/namespace/QName, have different Class objects for that type (A similar error is seen under AS7 if stax-api is included) However, we see this error under AS7: Servlet.service() for servlet Resteasy threw exception: java.lang.ClassNotFoundException: javax.xml.stream.XMLStreamException from [Module "deployment.rhevm-api-mock.war:main" from Service Module Loader] at org.jboss.modules.ModuleClassLoader.findClass(ModuleClassLoader.java:184) [:1.0.0.Beta17] at org.jboss.modules.ConcurrentClassLoader.performLoadClassChecked(ConcurrentClassLoader.java:357) [:1.0.0.Beta17] at org.jboss.modules.ConcurrentClassLoader.performLoadClassChecked(ConcurrentClassLoader.java:329) [:1.0.0.Beta17] at org.jboss.modules.ConcurrentClassLoader.performLoadClass(ConcurrentClassLoader.java:306) [:1.0.0.Beta17] at org.jboss.modules.ConcurrentClassLoader.loadClass(ConcurrentClassLoader.java:100) [:1.0.0.Beta17] at com.sun.xml.bind.v2.runtime.JAXBContextImpl.createMarshaller(JAXBContextImpl.java:768) [jaxb-impl-2.1.12.jar:] Now, some of the packages in stax-api are already exported by the javax.api module: <path name="javax/xml/datatype"/> <path name="javax/xml/namespace"/> and re-exported to web apps via javaee.api. This patch includes the rest of the stax-api packages in the javaee.api exports by exporting javax.xml.stream.api from there. An alternate apparoach would be to fold javax.xml.stream.api into javax.api completely. --- .../resources/modules/javaee/api/main/module.xml | 1 + 1 files changed, 1 insertions(+), 0 deletions(-) diff --git a/build/src/main/resources/modules/javaee/api/main/module.xml b/build/src/main/resources/modules/javaee/api/main/module.xml index 0d71380..b354415 100644 --- a/build/src/main/resources/modules/javaee/api/main/module.xml +++ b/build/src/main/resources/modules/javaee/api/main/module.xml @@ -52,6 +52,7 @@ <module name="javax.xml.bind.api" export="true"/> <module name="javax.xml.registry.api" export="true"/> <module name="javax.xml.soap.api" export="true"/> + <module name="javax.xml.stream.api" export="true"/> <module name="javax.xml.ws.api" export="true"/> <!-- This one always goes last. --> -- 1.7.4.2