Java Runtime Environment that can be found in Sun's JRE lib folder
'com.sun:rt:1.3.1_18'
<dependency> <groupId>com.sun</groupId> <artifactId>rt</artifactId> <version>1.3.1_18</version> </dependency>
<dependency org="com.sun" name="rt" rev="1.3.1_18"/>
"com.sun", "rt", "1.3.1_18"