Hi, everybody

i´m using tfs as control version system, and i create a task in jenkins that get files from tfs, it works fine until jenkins wants to get faces-config.xml, there are other xml files, and get them fine, but every build fails on faces-config with the next exception:

Getting .faces-config.xml.jsfdia
Getting faces-config.xml
FATAL: null
java.lang.ExceptionInInitializerError
at com.microsoft.tfs.core.config.webservice.DefaultWebServiceFactory.initialize(DefaultWebServiceFactory.java:545)
at com.microsoft.tfs.core.config.webservice.DefaultWebServiceFactory.getWebServiceMetadata(DefaultWebServiceFactory.java:532)
at com.microsoft.tfs.core.config.webservice.DefaultWebServiceFactory.newRegistrationWebService(DefaultWebServiceFactory.java:155)
at com.microsoft.tfs.core.TFSConnection.getWebService(TFSConnection.java:840)
at com.microsoft.tfs.core.clients.registration.RegistrationClient.<init>(RegistrationClient.java:123)
at com.microsoft.tfs.core.clients.registration.RegistrationClient.<init>(RegistrationClient.java:97)
at com.microsoft.tfs.core.config.client.DefaultClientFactory$4.newClient(DefaultClientFactory.java:180)
at com.microsoft.tfs.core.config.client.DefaultClientFactory.newClient(DefaultClientFactory.java:91)
at com.microsoft.tfs.core.TFSConnection.getClient(TFSConnection.java:1470)
at com.microsoft.tfs.core.TFSTeamProjectCollection.getRegistrationClient(TFSTeamProjectCollection.java:348)
at com.microsoft.tfs.core.clients.webservices.IdentityManagementService.<init>(IdentityManagementService.java:64)
at hudson.plugins.tfs.model.Project.getDetailedHistory(Project.java:78)
at hudson.plugins.tfs.actions.CheckoutAction.checkout(CheckoutAction.java:56)
at hudson.plugins.tfs.TeamFoundationServerScm.checkout(TeamFoundationServerScm.java:176)
at hudson.model.AbstractProject.checkout(AbstractProject.java:1412)
at hudson.model.AbstractBuild$AbstractBuildExecution.defaultCheckout(AbstractBuild.java:652)
at jenkins.scm.SCMCheckoutStrategy.checkout(SCMCheckoutStrategy.java:88)
at hudson.model.AbstractBuild$AbstractBuildExecution.run(AbstractBuild.java:557)
at hudson.model.Run.execute(Run.java:1679)
at hudson.maven.MavenModuleSetBuild.run(MavenModuleSetBuild.java:509)
at hudson.model.ResourceController.execute(ResourceController.java:88)
at hudson.model.Executor.run(Executor.java:230)
Caused by: java.lang.ClassCastException: com.ctc.wstx.stax.WstxInputFactory cannot be cast to javax.xml.stream.XMLInputFactory
at javax.xml.stream.XMLInputFactory.newInstance(XMLInputFactory.java:136)
at com.microsoft.tfs.core.ws.runtime.stax.StaxFactoryProvider.getXMLInputFactory(StaxFactoryProvider.java:42)
at com.microsoft.tfs.core.ws.runtime.client.SOAPService.<clinit>(SOAPService.java:134)
... 22 more

this situation cause I can not build apps from tfs.