The connection of camel-elasticsearch to Elasticsearch 2.X failed

Issue

• The connection of camel-elasticsearch to Elasticsearch 2.X failed with the following error:

Fuse.log:
2016-09-30 14:56:48,488 | INFO  | s][generic][T#8] | transport                        | 370 - org.apache.servicemix.bundles.elasticsearch - 1.4.4.1 | [Taurus] failed to get local cluster state for [#transport#-1][ubuntumax][inet[localhost:9300]], disconnecting...

Elasticsearch log:
[2016-09-30 14:59:18,584][WARN ][transport.netty          ] [Max ES 2.4] exception caught on transport layer [[id: 0x34b9854c, /192.168.1.6:40814 => /192.168.1.6:9300]], closing connection
java.lang.IllegalStateException: Received message from unsupported version: [1.0.0] minimal compatible version is: [2.0.0]