Original source code from AdrianWalker.org (http://www.adrianwalker.org/2011/12/java-multiline-string.html)
Original pom.xml
<dependencies>
<dependency>
<groupId>sun.jdk</groupId>
<artifactId>tools</artifactId>
<version>LATEST</version>
<scope>system</scope>
<systemPath>${java.home}/../lib/tools.jar</systemPath>
</dependency>
</dependencies>
In Mac OS X, tools.jar no more exists.
Reference: JavaDevTools.html
Modified pom_mac.xml
<dependencies>
<dependency>
<groupId>sun.jdk</groupId>
<artifactId>tools</artifactId>
<version>LATEST</version>
<scope>system</scope>
<systemPath>${java.home}/../Classes/classes.jar</systemPath>
</dependency>
</dependencies>
Build
$ mvn -f pom_mac.xml clean install