Prebuilts (simple-common-6.0.1.jar, simple-http-6.0.1.jar, simple-transport-6.0.1.jar) can be rebuilt by using the following command lines:
mvn install
cp simple-http/target/simple-http-6.0.1.jar simple-http-6.0.1.jar
cp simple-common/target/simple-common-6.0.1.jar simple-common-6.0.1.jar
cp simple-transport/target/simple-transport-6.0.1.jar simple-transport-6.0.1.jar