'com.google.protobuf:protoc:3.0.0-alpha-2'
<dependency>
<groupId>com.google.protobuf</groupId>
<artifactId>protoc</artifactId>
<version>3.0.0-alpha-2</version>
</dependency>
<dependency org="com.google.protobuf" name="protoc" rev="3.0.0-alpha-2"/>
"com.google.protobuf", "protoc", "3.0.0-alpha-2"