all 'command pack' examples are in java, not their respective languages, in http://vertx.io/docs/

the 'Command Pack' example, in each language section, is always givin in java.

package examples.pack;

import io.vertx.core.AsyncResult;
import io.vertx.core.Future;
import io.vertx.core.Handler;
import io.vertx.core.Vertx;
import io.vertx.ext.shell.command.Command;
import io.vertx.ext.shell.command.CommandBuilder;
import io.vertx.ext.shell.command.CommandResolver;
import io.vertx.ext.shell.spi.CommandResolverFactory;

import java.util.ArrayList;
import java.util.List;

public class CommandPackExample implements CommandResolverFactory {

  @Override
  public void resolver(Vertx vertx, Handler<AsyncResult<CommandResolver>> resolveHandler) {
    List<Command> commands = new ArrayList<>();

    // Add commands
    commands.add(Command.create(vertx, JavaCommandExample.class));

    // Add another command
    commands.add(CommandBuilder.command("another-command").processHandler(process -> {
      // Handle process
    }).build(vertx));

    // Resolve with the commands
    resolveHandler.handle(Future.succeededFuture(() -> commands));
  }
}

Start at the Command Pack example in the language sections of http://vertx.io/docs/ and identify where the shared Java example is defined. Update each section so its example uses the respective language, then verify that no language section still presents the Java version as its own.