2623698 - Connecting to LDAP Server over SSL fails

When connecting from Portal to LDAP Server over SSL via port number  636 connection fails and below are the log information from default trace file

#+0100#Error#com.sap.security.core.persistence.datasource.imp.LDAPConnectionManager#
#BC-JAS-SEC-UME#com.sap.security.core.sda#C0009DA3B6D300B00000000200002A7C#9020350000000004#sap.com/tc~lm~itsam~ui~mainframe~wd#com.sap.security.core.persistence.datasource.imp.LDAPConnectionManager#Administrator#7##D9EA92A01D2411E8C12F00000089A3BE#14f0f7041d2511e8cccf00000089a3be##0#Thread[HTTP Worker [@1167865312],5,Dedicated_Application_Thread]#Plain##
Please recheck the LDAP configuration Initialization of connection pool failed for 636_USER
java.naming.factory.initial= <XXXXXXXXX>
java.naming.security.principal= cn= <XXXXXXXXX>
com.sun.jndi.ldap.connect.timeout= <XXXXXXXXX>
java.naming.ldap.version= <XXXXXXXXX>
com.sun.jndi.ldap.read.timeout= <XXXXXXXXX>
connection_pool_name= <XXXXXXXXX>
java.naming.provider.url= <XXXXXXXXX>
java.naming.security.protocol=<XXXXXXXXX>
java.naming.ldap.factory.socket= com.sap.security.ssl.SSLSocketFactory
java.naming.security.authentication= <XXXXXXXXX>
java.naming.security.credentials= ******
[EXCEPTION: No connection to the ldap server: <XXXXXXXXX> Cause com.sap.security.ssl.SSLSocketFactory RootCause:com.sap.security.ssl.SSLSocketFactory]#

Caused by: javax.naming.CommunicationException: <XXXXXXXXX> [Root exception is java.lang.ClassNotFoundException: com.sap.security.ssl.SSLSocketFactory

• SAP Netweaver Application Server Java

java.naming.ldap.factory.socket= com.sap.security.ssl.SSLSocketFactory, No connection to the ldap server com.sap.security.ssl.SSLSocketFactory RootCause:com.sap.security.ssl.SSLSocketFactor ,Root exception is java.lang.ClassNotFoundException, com.sap.security.ssl.SSLSocketFactory , connection.
fails ,message, ume.ldap.access.ssl_socket_factory=com.sap.security.core.server.https.SecureConnectionFactory ,dataSourceConfiguration_ .. .xml , Use SSL for LDAP Access, LDAP Server configuration,<ume.ldap.access.ssl_socket_factory> , Server , test , connection, validate , configuration,636 , 398, port, default , SSL, Secure Socket Layer, , KBA , BC-JAS-SEC-UME , User Management Engine , Problem