bug: akka-sample-persistence-dc-java not working

[franciscolopezsancho]

README.md in akka-sample-persistence-dc-java is wrong
and even trying to point to the real class also fails

 mvn exec:java -Dexec.mainClass="sample.persistence.res.MainApp" -Dexec.args="cassandra"

with

java.lang.ClassNotFoundException: sample.persistence.res.MainApp
    at org.codehaus.mojo.exec.URLClassLoaderBuilder$ExecJavaClassLoader.loadClass (URLClassLoaderBuilder.java:198)
    at java.lang.ClassLoader.loadClass (ClassLoader.java:521)
    at org.codehaus.mojo.exec.ExecJavaMojo$1.run (ExecJavaMojo.java:271)
    at java.lang.Thread.run (Thread.java:834)

Also the name of the project in the pom.xml is different from the name of the folder. Which one is correct?