This provides useful classes for Elasticsearch plugin development.
'org.codelibs:elasticsearch-util:0.2.0'
<dependency>
<groupId>org.codelibs</groupId>
<artifactId>elasticsearch-util</artifactId>
<version>0.2.0</version>
</dependency>
<dependency org="org.codelibs" name="elasticsearch-util" rev="0.2.0"/>
"org.codelibs", "elasticsearch-util", "0.2.0"