package <%=packageName%>.web.rest;

import java.io.IOException;
import java.nio.charset.Charset;

import org.springframework.http.MediaType;

import com.fasterxml.jackson.annotation.JsonInclude;
import com.fasterxml.jackson.databind.ObjectMapper;

/**
 * Utility class for testing REST controllers.
 */
public class TestUtil {

    /** MediaType for JSON UTF8 */
    public static final MediaType APPLICATION_JSON_UTF8 = new MediaType(
            MediaType.APPLICATION_JSON.getType(),
            MediaType.APPLICATION_JSON.getSubtype(), Charset.forName("utf8"));

    /**
     * Convert an object to JSON byte array.
     * 
     * @param object
     *            the object to convert
     * @return the JSON byte array
     * @throws IOException
     */
    public static byte[] convertObjectToJsonBytes(Object object)
            throws IOException {
        ObjectMapper mapper = new ObjectMapper();
        mapper.setSerializationInclusion(JsonInclude.Include.NON_NULL);
        return mapper.writeValueAsBytes(object);
    }
}

package <%=packageName%>.web.rest;

import java.io.IOException;
import java.nio.charset.Charset;

import org.springframework.http.MediaType;

import com.fasterxml.jackson.annotation.JsonInclude;
import com.fasterxml.jackson.databind.ObjectMapper;

/**
 * Utility class for testing REST controllers.
 */
public class TestUtil {

    /** MediaType for JSON UTF8 */
    public static final MediaType APPLICATION_JSON_UTF8 = new MediaType(
            MediaType.APPLICATION_JSON.getType(),
            MediaType.APPLICATION_JSON.getSubtype(), Charset.forName("utf8"));

    /**
     * Convert an object to JSON byte array.
     *
     * @param object
     *            the object to convert
     * @return the JSON byte array
     * @throws IOException
     */
    public static byte[] convertObjectToJsonBytes(Object object)
            throws IOException {
        ObjectMapper mapper = new ObjectMapper();
        mapper.setSerializationInclusion(JsonInclude.Include.NON_NULL);
        return mapper.writeValueAsBytes(object);
    }
}

Fix indentation and remove trailing whitespaces