In my SAMLCallbackHandler I try to set the assertion element with the current
subject's public credentials (SAMLCredential). This approach ends up with
the following error:

/Caused by: org.w3c.dom.DOMException: WRONG_DOCUMENT_ERR: A node is used in
a different document than the one that created it.
    at
org.apache.xerces.dom.ParentNode.internalInsertBefore(ParentNode.java:351)
    at org.apache.xerces.dom.ParentNode.insertBefore(ParentNode.java:283)
    at org.apache.xerces.dom.NodeImpl.appendChild(NodeImpl.java:236)
    at
org.apache.cxf.ws.security.wss4j.policyhandlers.AbstractBindingBuilder.insertAfter(AbstractBindingBuilder.java:190)
    at
org.apache.cxf.ws.security.wss4j.policyhandlers.AbstractBindingBuilder.addSupportingElement(AbstractBindingBuilder.java:232)
    at
org.apache.cxf.ws.security.wss4j.policyhandlers.AbstractBindingBuilder.addSignatureParts(AbstractBindingBuilder.java:698)
    at
org.apache.cxf.ws.security.wss4j.policyhandlers.AbstractBindingBuilder.addSupportingTokens(AbstractBindingBuilder.java:2126)
    at
org.apache.cxf.ws.security.wss4j.policyhandlers.AsymmetricBindingHandler.doSignBeforeEncrypt(AsymmetricBindingHandler.java:144)
    at
org.apache.cxf.ws.security.wss4j.policyhandlers.AsymmetricBindingHandler.handleBinding(AsymmetricBindingHandler.java:98)
    at
org.apache.cxf.ws.security.wss4j.PolicyBasedWSS4JOutInterceptor$PolicyBasedWSS4JOutInterceptorInternal.handleMessage(PolicyBasedWSS4JOutInterceptor.java:165)
    at
org.apache.cxf.ws.security.wss4j.PolicyBasedWSS4JOutInterceptor$PolicyBasedWSS4JOutInterceptorInternal.handleMessage(PolicyBasedWSS4JOutInterceptor.java:89)
    at
org.apache.cxf.phase.PhaseInterceptorChain.doIntercept(PhaseInterceptorChain.java:262)
    at org.apache.cxf.endpoint.ClientImpl.doInvoke(ClientImpl.java:531)
    at org.apache.cxf.endpoint.ClientImpl.invoke(ClientImpl.java:464)
    at org.apache.cxf.endpoint.ClientImpl.invoke(ClientImpl.java:367)
    at org.apache.cxf.endpoint.ClientImpl.invoke(ClientImpl.java:320)
    at org.apache.cxf.frontend.ClientProxy.invokeSync(ClientProxy.java:89)
    at
org.apache.cxf.jaxws.JaxWsClientProxy.invoke(JaxWsClientProxy.java:134
    ... 18 more/


The SAMLCallbackHandler looks like this:
/...
public void handle(Callback[] callbacks) throws IOException,
UnsupportedCallbackException {
    for (int i = 0; i < callbacks.length; i++) {
        if (callbacks[i] instanceof SAMLCallback) {
            SAMLCallback sc = (SAMLCallback) callbacks[i];
            Subject subject =
org.jboss.security.SecurityContextAssociation.getSubject();
            Set<SamlCredential> samlCreds =
subject.getPublicCredentials(SamlCredential.class);
            for (SamlCredential samlCred : samlCreds) {
                 Element assertion = samlCred.getAssertionAsElement();
                 sc.setAssertionElement(assertion);
            }
.../

Is it not meant to be used like this or is there another way to reuse the
current subject's SAMLCredential in CXF?

Thanks
Andreas



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