gistfile1.java

import java.lang.reflect.Type;
import java.time.LocalDateTime;

import javax.enterprise.context.Dependent;

import com.google.gson.JsonElement;
import com.google.gson.JsonPrimitive;
import com.google.gson.JsonSerializationContext;
import com.google.gson.JsonSerializer;

/**
 * Serializar to LocalDateTime
 * @author victorpinto
 *
 */
@Dependent
public class LocalDateTimeGsonConverter implements JsonSerializer<LocalDateTime> {

	@Override
	public JsonElement serialize(LocalDateTime localDateTime, Type typeOfSrc, JsonSerializationContext context) {
		String val = null;
		if (localDateTime != null) {
			val = localDateTime.toString();
		}
		return new JsonPrimitive(val);
	}
}

gistfile2.java

import java.lang.reflect.Type;
import java.time.LocalDate;

import javax.enterprise.context.Dependent;

import com.google.gson.JsonElement;
import com.google.gson.JsonPrimitive;
import com.google.gson.JsonSerializationContext;
import com.google.gson.JsonSerializer;

/**
 * Serializar to LocalDate
 * @author victorpinto
 *
 */
@Dependent
public class LocalDateGsonConverter implements JsonSerializer<LocalDate> {

	@Override
	public JsonElement serialize(LocalDate localDate, Type typeOfSrc, JsonSerializationContext context) {
		String val = null;
		if (localDate != null) {
			val = localDate.toString();
		}
		return new JsonPrimitive(val);
	}
}