[BEANUTILS-412] Default value is 0 instead of null for Integer properties

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Not A Problem
• Affects Version/s: 1.8.3
• Fix Version/s: 1.9.5
• Component/s: Locale BeanUtils / Converters
• Assignee: Benedikt Ritter
• Reporter: Laurent Kloetzer
• Created: 03/May/12 10:59
• Updated: 2 days ago 12:49
• Resolved: 03/Mar/13 13:36

Description

See the following test to see the problem and its solution.

public class Test {

	/**
	 * @param args
	 * @throws InvocationTargetException
	 * @throws IllegalAccessException
	 */
	public static void main(String[] args) throws IllegalAccessException, InvocationTargetException {
		test(false);
		test(true);

	}

	protected static void test(boolean withFix) throws IllegalAccessException, InvocationTargetException {
		Thing t1 = new Thing();
		t1.valInt = 1;
		t1.valInteger = 2;
		Thing t2 = new Thing();
		t2.valInt = 0;
		t2.valInteger = null;
		Thing t3 = new Thing();
		Thing t4 = new Thing();

		System.out.println(t2);
		System.out.println(t1);

		if (withFix) {
			IntegerConverter ic = new IntegerConverter(null);
			BeanUtilsBean.getInstance().getConvertUtils().register(ic, Integer.class);
		}

		BeanUtilsBean.getInstance().copyProperties(t3, t1);
		BeanUtilsBean.getInstance().copyProperties(t4, t2);

		System.out.println(t4);
		System.out.println(t3);
	}

	public static class Thing {
		private int valInt;
		private Integer valInteger;

		@Override
		public String toString() {

			return ToStringBuilder.reflectionToString(this);
		}

		public int getValInt() {
			return valInt;
		}

		public void setValInt(int valInt) {
			this.valInt = valInt;
		}

		public Integer getValInteger() {
			return valInteger;
		}

		public void setValInteger(Integer valInteger) {
			this.valInteger = valInteger;
		}

	}

}