Test to prove there is no IST time zone in threetenbp

ISTTest.java

package com.mycompany.app;

import static org.junit.Assert.assertNotNull;

import java.util.TimeZone;

import org.junit.Test;
import org.threeten.bp.ZoneId;

/**
 * Unit test for simple App.
 */
public class ISTTest {
	@Test
	public void test() {
		TimeZone tz = TimeZone.getTimeZone(App.ZONE_ID);
		assertNotNull("Java time zone should not be null", tz);
		ZoneId bpz = ZoneId.of(App.ZONE_ID);
		assertNotNull("threeten.bp.ZoneId should not be null", bpz);
	}
}