3027834 - Error occurs when selecting Relational connection to HANA although SAML SSO test works in CMC and IDT

• Logging onto BILaunchpad using SAP authentication,when creating a new Webi report by selecting Relational connection to HANA using SAML SSO, the following error occurs:
  
  java.lang.RuntimeException: java.lang.ClassCastException: Cannot cast class com.sap.db.util.security.SAMLAuthentication to class com.sap.db.util.security.AbstractAuthenticationMethod
  (found matching super class com.sap.db.util.security.AbstractAuthenticationMethod loaded by System [class=sun.misc.Launcher$AppClassLoader,id=7157,
  parents=Extension@7105,urls=______file:*/sap_bobj/enterprise_xi40/java/pjs/container/bin/boeserver.jar],
  but needed loader java.net.URLClassLoader [id=299849,parents=java.net.URLClassLoader@79187]) (Error: INF )

• Logging onto BILaunchpad using Enterprise authentication,when creating a new Webi report by selecting Relational connection to HANA using SAML SSO, the following error occurs:
  
  Failed to open a browsing session with the connection 'com.sap.sl.relational.impl.ConnectionSpecificationImpl@****
  (networkLayer: JDBC, database: sapHana2x, connectionUri: cuid://FuCyZ112twIAq34AAADn8CwACj3VuJbO, connectionAvailable: true)'
  Cause: java.lang.RuntimeException: com.sap.db.jdbc.exceptions.JDBCDriverException: SAP DBTech JDBC:
  Cannot connect to jdbc:sap://****:30015 [None of the hosts could be reached:
  [Cannot connect to host ****:30015 [Too many open files], -813.;
  host = *.*.*.*:30015 error = Cannot connect to host *.*.*.*:30015 [Too many open files], -813.]].. (Error: INF )

• SAP BusinessObjects Business Intelligence Platform 4.2.x
• HANA 2.0

saml, sigle sign on, single-sign-on, singlesignon, connection , KBA , BI-BIP-AUT , Authentication, ActiveDirectory, LDAP, SSO, Vintela , BI-RA-WBI , Web Intelligence , Known Error