Accessing AWS ElasticSearch Service v5.6 using Java High Level Rest Client v6.3.0

Hi,

I am using snapshot version of High Level Rest client (6.3.0-SNAPSHOT) now and using AWS ES v6.0. Whenvever I tried to connect the AWS using my rest client I get the below error.

java.net.ConnectException
at org.apache.http.nio.pool.RouteSpecificPool.timeout(RouteSpecificPool.java:168) ~[httpcore-nio-4.4.5.jar:4.4.5]
at org.apache.http.nio.pool.AbstractNIOConnPool.requestTimeout(AbstractNIOConnPool.java:561) ~[httpcore-nio-4.4.5.jar:4.4.5]
at org.apache.http.nio.pool.AbstractNIOConnPool$InternalSessionRequestCallback.timeout(AbstractNIOConnPool.java:822) ~[httpcore-nio-4.4.5.jar:4.4.5]
at org.apache.http.impl.nio.reactor.SessionRequestImpl.timeout(SessionRequestImpl.java:183) ~[httpcore-nio-4.4.5.jar:4.4.5]
at org.apache.http.impl.nio.reactor.DefaultConnectingIOReactor.processTimeouts(DefaultConnectingIOReactor.java:210) ~[httpcore-nio-4.4.5.jar:4.4.5]
at org.apache.http.impl.nio.reactor.DefaultConnectingIOReactor.processEvents(DefaultConnectingIOReactor.java:155) ~[httpcore-nio-4.4.5.jar:4.4.5]
at org.apache.http.impl.nio.reactor.AbstractMultiworkerIOReactor.execute(AbstractMultiworkerIOReactor.java:348) ~[httpcore-nio-4.4.5.jar:4.4.5]
at org.apache.http.impl.nio.conn.PoolingNHttpClientConnectionManager.execute(PoolingNHttpClientConnectionManager.java:192) ~[httpasyncclient-4.1.2.jar:4.1.2]
at org.apache.http.impl.nio.client.CloseableHttpAsyncClientBase$1.run(CloseableHttpAsyncClientBase.java:64) ~[httpasyncclient-4.1.2.jar:4.1.2]
at java.lang.Thread.run(Thread.java:745) [?:1.8.0_60]

Could you please help in fixing this?