Cannot translate cypher query to gremlin query

[canbax]

I downloaded the JAR files "cypher-gremlin-console-plugin-1.0.4-all.jar" and "cypher-gremlin-server-plugin-1.0.4-all.jar". I added these JAR files as dependencies to my project. (I'm using IntelliJ Idea)

Below is my very simple Java class to simply convert cypher query string to gremlin query string.

package org.ivis;

import org.opencypher.gremlin.translation.TranslationFacade;

public class App
{
    public static void main( String[] args )
    {
        System.out.println( "Hello World!" );

        String cypher = "MATCH (p:Person) WHERE p.age > 25 RETURN p.name";
        TranslationFacade cfog = new TranslationFacade();
        String gremlin = cfog.toGremlinGroovy(cypher);

        System.out.println( "gremlin: " + gremlin );
    }
}

IDE does NOT complain about any thing but in run time I get below error.

Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/tinkerpop/gremlin/process/traversal/dsl/graph/GraphTraversal
at org.opencypher.gremlin.translation.translator.Translator.builder(Translator.java:148)
at org.opencypher.gremlin.translation.TranslationFacade.toGremlinGroovy(TranslationFacade.java:55)
at org.opencypher.gremlin.translation.TranslationFacade.toGremlinGroovy(TranslationFacade.java:43)
at org.ivis.App.main(App.java:18)
Caused by: java.lang.ClassNotFoundException: org.apache.tinkerpop.gremlin.process.traversal.dsl.graph.GraphTraversal
at java.net.URLClassLoader.findClass(URLClassLoader.java:382)
at java.lang.ClassLoader.loadClass(ClassLoader.java:418)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:352)
at java.lang.ClassLoader.loadClass(ClassLoader.java:351)
... 4 more