'org.apache.tomcat:tomcat-websocket-api:9.0.0.M1'
<dependency>
<groupId>org.apache.tomcat</groupId>
<artifactId>tomcat-websocket-api</artifactId>
<version>9.0.0.M1</version>
</dependency>
<dependency org="org.apache.tomcat" name="tomcat-websocket-api" rev="9.0.0.M1"/>
"org.apache.tomcat", "tomcat-websocket-api", "9.0.0.M1"