'com.google.gcm:gcm-server:1.0.0'
<dependency>
<groupId>com.google.gcm</groupId>
<artifactId>gcm-server</artifactId>
<version>1.0.0</version>
</dependency>
<dependency org="com.google.gcm" name="gcm-server" rev="1.0.0"/>
"com.google.gcm", "gcm-server", "1.0.0"