Caused by: java.lang.NoClassDefFoundError: com/sun/org/apache/xml/internal/security/Init
at org.jcp.xml.dsig.internal.dom.DOMXMLSignature.<clinit>(DOMXMLSignature.java:62)
at org.jcp.xml.dsig.internal.dom.DOMXMLSignatureFactory.newXMLSignature(DOMXMLSignatureFactory.java:44)
at com.webex.webapp.util.XmlDigitalSigner.signSamlElement(XmlDigitalSigner.java:170)
at com.webex.webapp.util.XmlDigitalSigner.signXML(XmlDigitalSigner.java:218)
at com.webex.webapp.util.ProcessResponse.signResponse(ProcessResponse.java:238)
at com.webex.webapp.tool.SAML2Util.createSAML2Assertion(SAML2Util.java:512)
put xmlsec-1.2.jar to D:\blackboard\apps\tomcat\common\endorsed
put XMLdsig-1.0.1.jar to \endorsed