To prepare, we need to do the following:

1. Create a new Maven project.
2. Add the following dependency to the project's POM file:

<dependency>
    <groupId>org.apache.opennlp</groupId>
    <artifactId>opennlp-tools</artifactId>
    <version>1.9.0</version>
</dependency>

Download the file, en-pos-maxent.bin, from http://opennlp.sourceforge.net/models-1.5/. Add the file to the root level of your project.