Protocol Buffers are a way of encoding structured data in an efficient yet extensible format.
'com.google.protobuf:protobuf-java:2.1.0'
<dependency>
<groupId>com.google.protobuf</groupId>
<artifactId>protobuf-java</artifactId>
<version>2.1.0</version>
</dependency>
<dependency org="com.google.protobuf" name="protobuf-java" rev="2.1.0"/>
"com.google.protobuf", "protobuf-java", "2.1.0"