WSTrustTestCase regression with WSS4J 1.6.6

After WSS4J upgrade from 1.6.5 to 1.6.6 the CXF integration
test **/jaxws/samples/wsse/policy/trust/WSTrustTestCase
started to fail
—
10:47:09,123 WARNING [org.apache.cxf.sts.token.provider.SAMLTokenProvider] (http-localhost/127.0.0.1:8080-47) : java.lang.IllegalArgumentException: InputStream cannot be null
at javax.xml.parsers.DocumentBuilder.parse(DocumentBuilder.java:120) [rt.jar:1.6.0_32]
at org.opensaml.xml.parse.BasicParserPool$DocumentBuilderProxy.parse(BasicParserPool.java:671)
at org.opensaml.xml.parse.BasicParserPool.parse(BasicParserPool.java:215)
at org.opensaml.xml.XMLConfigurator.load(XMLConfigurator.java:141)
at org.opensaml.DefaultBootstrap.initializeXMLTooling(DefaultBootstrap.java:199)
at org.apache.ws.security.saml.ext.OpenSAMLBootstrap.bootstrap(OpenSAMLBootstrap.java:77) [wss4j.jar:1.6.6]
at org.apache.ws.security.saml.ext.OpenSAMLUtil.initSamlEngine(OpenSAMLUtil.java:61) [wss4j.jar:1.6.6]
at org.apache.ws.security.saml.ext.AssertionWrapper.<init>(AssertionWrapper.java:214) [wss4j.jar:1.6.6]
at org.apache.cxf.sts.token.provider.SAMLTokenProvider.createSamlToken(SAMLTokenProvider.java:328) [cxf-services-sts-core.jar:]
at org.apache.cxf.sts.token.provider.SAMLTokenProvider.createToken(SAMLTokenProvider.java:126) [cxf-services-sts-core.jar:]
at org.apache.cxf.sts.operation.TokenIssueOperation.issueSingle(TokenIssueOperation.java:145) [cxf-services-sts-core.jar:]
at org.apache.cxf.sts.operation.TokenIssueOperation.issue(TokenIssueOperation.java:70) [cxf-services-sts-core.jar:]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [rt.jar:1.6.0_32]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) [rt.jar:1.6.0_32]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) [rt.jar:1.6.0_32]
at java.lang.reflect.Method.invoke(Method.java:597) [rt.jar:1.6.0_32]
at org.apache.cxf.ws.security.sts.provider.SecurityTokenServiceProvider.invoke(SecurityTokenServiceProvider.java:227) [cxf-rt-ws-security.jar:2.6.1]
at org.apache.cxf.ws.security.sts.provider.SecurityTokenServiceProvider.invoke(SecurityTokenServiceProvider.java:60) [cxf-rt-ws-security.jar:2.6.1]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [rt.jar:1.6.0_32]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) [rt.jar:1.6.0_32]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) [rt.jar:1.6.0_32]
at java.lang.reflect.Method.invoke(Method.java:597) [rt.jar:1.6.0_32]
at org.jboss.ws.common.invocation.AbstractInvocationHandlerJSE.invoke(AbstractInvocationHandlerJSE.java:111)
at org.jboss.wsf.stack.cxf.JBossWSInvoker._invokeInternal(JBossWSInvoker.java:181)
at org.jboss.wsf.stack.cxf.JBossWSInvoker.invoke(JBossWSInvoker.java:127)
at org.apache.cxf.interceptor.ServiceInvokerInterceptor$1.run(ServiceInvokerInterceptor.java:58) [cxf-api.jar:2.6.1]
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441) [rt.jar:1.6.0_32]
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303) [rt.jar:1.6.0_32]
at java.util.concurrent.FutureTask.run(FutureTask.java:138) [rt.jar:1.6.0_32]
at org.apache.cxf.workqueue.SynchronousExecutor.execute(SynchronousExecutor.java:37) [cxf-api.jar:2.6.1]
at org.apache.cxf.interceptor.ServiceInvokerInterceptor.handleMessage(ServiceInvokerInterceptor.java:107) [cxf-api.jar:2.6.1]
at org.apache.cxf.phase.PhaseInterceptorChain.doIntercept(PhaseInterceptorChain.java:262) [cxf-api.jar:2.6.1]
at org.apache.cxf.transport.ChainInitiationObserver.onMessage(ChainInitiationObserver.java:122) [cxf-api.jar:2.6.1]
at org.apache.cxf.transport.http.AbstractHTTPDestination.invoke(AbstractHTTPDestination.java:211) [cxf-rt-transports-http.jar:2.6.1]
at org.jboss.wsf.stack.cxf.RequestHandlerImpl.handleHttpRequest(RequestHandlerImpl.java:91)
at org.jboss.wsf.stack.cxf.transport.ServletHelper.callRequestHandler(ServletHelper.java:169)
at org.jboss.wsf.stack.cxf.CXFServletExt.invoke(CXFServletExt.java:87)
at org.apache.cxf.transport.servlet.AbstractHTTPServlet.handleRequest(AbstractHTTPServlet.java:187) [cxf-rt-transports-http.jar:2.6.1]
at org.apache.cxf.transport.servlet.AbstractHTTPServlet.doPost(AbstractHTTPServlet.java:110) [cxf-rt-transports-http.jar:2.6.1]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:754) [jboss-servlet-api_3.0_spec-1.0.1.Final.jar:1.0.1.Final]
at org.jboss.wsf.stack.cxf.CXFServletExt.service(CXFServletExt.java:135)
at org.jboss.wsf.spi.deployment.WSFServlet.service(WSFServlet.java:140) [jbossws-spi.jar:2.1.0-SNAPSHOT]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:847) [jboss-servlet-api_3.0_spec-1.0.1.Final.jar:1.0.1.Final]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:329) [jbossweb-7.0.16.Final.jar:]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:248) [jbossweb-7.0.16.Final.jar:]
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:275) [jbossweb-7.0.16.Final.jar:]
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:161) [jbossweb-7.0.16.Final.jar:]
at org.jboss.as.web.security.SecurityContextAssociationValve.invoke(SecurityContextAssociationValve.java:153) [jboss-as-web-7.2.0.Alpha1-SNAPSHOT.jar:7.2.0.Alpha1-SNAPSHOT]
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:155) [jbossweb-7.0.16.Final.jar:]
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) [jbossweb-7.0.16.Final.jar:]
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) [jbossweb-7.0.16.Final.jar:]
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:368) [jbossweb-7.0.16.Final.jar:]
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:877) [jbossweb-7.0.16.Final.jar:]
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:679) [jbossweb-7.0.16.Final.jar:]
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:931) [jbossweb-7.0.16.Final.jar:]
at java.lang.Thread.run(Thread.java:662) [rt.jar:1.6.0_32]