Simple Neo4j Procedure to create/remove/list persons

Person.java

import java.util.concurrent.ThreadLocalRandom;
import java.util.stream.Stream;

import org.neo4j.graphdb.GraphDatabaseService;
import org.neo4j.graphdb.Node;
import org.neo4j.procedure.Context;
import org.neo4j.procedure.Procedure;

import static org.neo4j.graphdb.Label.label;

public class Person
{
    private static final int NAME_LENGTH = 3;

    @Context
    public GraphDatabaseService db;

    @Procedure
    public Stream<?> create()
    {
        Node node = db.createNode( label( "Person" ) );
        String name = randomName();
        node.setProperty( "name", name );
        return Stream.of( "Created person with name: '" + name + "'" );
    }

    @Procedure
    public void removeAll()
    {
        db.findNodes( label( "Person" ) )
                .forEachRemaining( Node::delete );
    }

    @Procedure
    public Stream<?> list()
    {
        return db.findNodes( label( "Person" ) )
                .stream()
                .map( node -> "Person[name=" + node.getProperty( "name" ) + "]" );
    }

    private static String randomName()
    {
        char[] chars = new char[NAME_LENGTH];
        for ( int i = 0; i < NAME_LENGTH; i++ )
        {
            chars[i] = (char) ThreadLocalRandom.current().nextInt( 65, 91 );
        }
        return new String( chars );
    }
}