IllegalAnnotationException: Two classes have the same XML type name

Question

I am developing web service under JBoss 5 and Java 1.6. What could possibly cause this exception? Below is my simplified web service code.

@Stateless @WebService() public class AccountWS {  @WebMethod() public CreateAccountResponse createAccount(@WebParam(name = "request") CreateAccountRequest request) {     return null; } 

And below is the full stack trace.

16:19:03,421 ERROR [AbstractKernelController] Error installing to Real: name=vfsfile:/C:/Apps/jbdevstudio/jboss-eap/jboss-as/server/default/deploy/sif_esb.esb/ state=PreReal mode=Manual requiredState=Real org.jboss.deployers.spi.DeploymentException: Error during deploy: vfsfile:/C:/Apps/jbdevstudio/jboss-eap/jboss-as/server/default/deploy/sif_esb.esb/ at org.jboss.deployers.spi.DeploymentException.rethrowAsDeploymentException(DeploymentException.java:49) at org.jboss.deployers.plugins.deployers.DeployerWrapper.deploy(DeployerWrapper.java:177) at org.jboss.deployers.plugins.deployers.DeployersImpl.doDeploy(DeployersImpl.java:1440) at org.jboss.deployers.plugins.deployers.DeployersImpl.doInstallParentFirst(DeployersImpl.java:1158) at org.jboss.deployers.plugins.deployers.DeployersImpl.install(DeployersImpl.java:1099) at org.jboss.dependency.plugins.AbstractControllerContext.install(AbstractControllerContext.java:348) at org.jboss.dependency.plugins.AbstractController.install(AbstractController.java:1633) at org.jboss.dependency.plugins.AbstractController.incrementState(AbstractController.java:935) at org.jboss.dependency.plugins.AbstractController.resolveContexts(AbstractController.java:1083) at org.jboss.dependency.plugins.AbstractController.resolveContexts(AbstractController.java:985) at org.jboss.dependency.plugins.AbstractController.change(AbstractController.java:823) at org.jboss.dependency.plugins.AbstractController.change(AbstractController.java:553) at org.jboss.deployers.plugins.deployers.DeployersImpl.process(DeployersImpl.java:782) at org.jboss.deployers.plugins.main.MainDeployerImpl.process(MainDeployerImpl.java:702) at org.jboss.system.server.profileservice.repository.MainDeployerAdapter.process(MainDeployerAdapter.java:117) at org.jboss.system.server.profileservice.repository.ProfileDeployAction.install(ProfileDeployAction.java:70) at org.jboss.system.server.profileservice.repository.AbstractProfileAction.install(AbstractProfileAction.java:53) at org.jboss.system.server.profileservice.repository.AbstractProfileService.install(AbstractProfileService.java:403) at org.jboss.dependency.plugins.AbstractControllerContext.install(AbstractControllerContext.java:348) at org.jboss.dependency.plugins.AbstractController.install(AbstractController.java:1633) at org.jboss.dependency.plugins.AbstractController.incrementState(AbstractController.java:935) at org.jboss.dependency.plugins.AbstractController.resolveContexts(AbstractController.java:1083) at org.jboss.dependency.plugins.AbstractController.resolveContexts(AbstractController.java:985) at org.jboss.dependency.plugins.AbstractController.install(AbstractController.java:775) at org.jboss.dependency.plugins.AbstractController.install(AbstractController.java:540) at org.jboss.system.server.profileservice.repository.AbstractProfileService.registerProfile(AbstractProfileService.java:308) at org.jboss.system.server.profileservice.ProfileServiceBootstrap.start(ProfileServiceBootstrap.java:256) at org.jboss.bootstrap.AbstractServerImpl.start(AbstractServerImpl.java:461) at org.jboss.Main.boot(Main.java:221) at org.jboss.Main$1.run(Main.java:556) at java.lang.Thread.run(Unknown Source) Caused by: java.lang.IllegalStateException: Cannot build JAXB context at org.jboss.ws.metadata.builder.jaxws.JAXWSMetaDataBuilder.createJAXBContext(JAXWSMetaDataBuilder.java:984) at org.jboss.ws.metadata.builder.jaxws.JAXWSWebServiceMetaDataBuilder.buildWebServiceMetaData(JAXWSWebServiceMetaDataBuilder.java:151) at org.jboss.ws.metadata.builder.jaxws.JAXWSServerMetaDataBuilder.setupProviderOrWebService(JAXWSServerMetaDataBuilder.java:50) at org.jboss.ws.metadata.builder.jaxws.JAXWSMetaDataBuilderEJB3.buildMetaData(JAXWSMetaDataBuilderEJB3.java:76) at org.jboss.wsf.stack.jbws.UnifiedMetaDataDeploymentAspect.start(UnifiedMetaDataDeploymentAspect.java:69) at org.jboss.wsf.framework.deployment.DeploymentAspectManagerImpl.deploy(DeploymentAspectManagerImpl.java:129) at org.jboss.wsf.container.jboss50.deployer.ArchiveDeployerHook.deploy(ArchiveDeployerHook.java:76) at org.jboss.wsf.container.jboss50.deployer.AbstractWebServiceDeployer.internalDeploy(AbstractWebServiceDeployer.java:60) at org.jboss.wsf.container.jboss50.deployer.WebServiceDeployerEJB.internalDeploy(WebServiceDeployerEJB.java:113) at org.jboss.deployers.spi.deployer.helpers.AbstractRealDeployer.deploy(AbstractRealDeployer.java:50) at org.jboss.deployers.plugins.deployers.DeployerWrapper.deploy(DeployerWrapper.java:171) ... 29 more Caused by: org.jboss.ws.WSException: Failed to create JAXBContext at org.jboss.ws.core.jaxws.CustomizableJAXBContextFactory.createContext(CustomizableJAXBContextFactory.java:114) at org.jboss.ws.metadata.builder.jaxws.JAXWSMetaDataBuilder.createJAXBContext(JAXWSMetaDataBuilder.java:980) ... 39 more Caused by: com.sun.xml.bind.v2.runtime.IllegalAnnotationsException: 1 counts of IllegalAnnotationExceptions Two classes have the same XML type name "{http://kona.webservice.sif.unidata.com/}createAccountResponse". Use @XmlType.name and @XmlType.namespace to assign different names to them. this problem is related to the following location:     at com.unidata.sif.kona.account.message.CreateAccountResponse     at private com.unidata.sif.kona.account.message.CreateAccountResponse com.unidata.sif.webservice.kona.jaxws.CreateAccountResponse._return     at com.unidata.sif.webservice.kona.jaxws.CreateAccountResponse this problem is related to the following location:     at com.unidata.sif.webservice.kona.jaxws.CreateAccountResponse  at com.sun.xml.bind.v2.runtime.IllegalAnnotationsException$Builder.check(IllegalAnnotationsException.java:102) at com.sun.xml.bind.v2.runtime.JAXBContextImpl.getTypeInfoSet(JAXBContextImpl.java:448) at com.sun.xml.bind.v2.runtime.JAXBContextImpl.<init>(JAXBContextImpl.java:297) at com.sun.xml.bind.v2.ContextFactory.createContext(ContextFactory.java:139) at com.sun.xml.bind.api.JAXBRIContext.newInstance(JAXBRIContext.java:105) at org.jboss.ws.core.jaxws.CustomizableJAXBContextFactory.createContext(CustomizableJAXBContextFactory.java:108) ... 40 more 

Answer 1

I found the cause of my problem.

This problem occurs because JAX-WS generates a class for each method and the class name is constructed by concatenating methodName + "Response". In my case, the newly generated class by JAX-WS will have the same name as my response object.

Example:

@Stateless @WebService() public class AccountWS {      @WebMethod()     public CreateAccountResponse createAccount(@WebParam(name = "request") CreateAccountRequest request) {         return null;     } } 

JAX-WS will generate a new class CreateAccountResponse for Web Method createAccount which has the same name as the response object.

Solution:

Make sure that the name of the response object and method doesn't match. The same thing applies to the method parameter as well.