I am trying to call https REST API using HTTPClient but was not able to as I was facing issue with Handshake (Error: javax.net.ssl.sslhandshakeexception). I changed the implementation and replaced HTTPClient with HTTPWebRequest and connection was established. Now we are facing the Error: SecureChannelFailure and the source is unknown. We recently changed the server configuration and disabled SSL3. Is there any dependancy between these two? Please provide some solution.