public void setJar(String jar) {
        this.jar = jar;
    }
<p>
The path to the JAR file that runs during the step.
</p>

@param jar
       The path to the JAR file that runs during the step.
aws-java-sdk-emr/src/main/java/com/amazonaws/services/elasticmapreduce/model/HadoopStepConfig.java