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https://issues.apache.org/jira/browse/LANG-1152?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14616842#comment-14616842
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Pas Filip edited comment on LANG-1152 at 7/7/15 3:16 PM:
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I only tested the behavior on version 3.4 but I assume it's present in earler
and later version too.
was (Author: pasfilip):
I only tested the behavior on version 3.4 but I assume it's present in earler
and later incarnations too.
> FastDateFormat seems to behave differently with very large dates than simple
> date format
> ----------------------------------------------------------------------------------------
>
> Key: LANG-1152
> URL: https://issues.apache.org/jira/browse/LANG-1152
> Project: Commons Lang
> Issue Type: Bug
> Components: lang.time.*
> Affects Versions: 3.x
> Environment: ANY
> Reporter: Pas Filip
> Priority: Minor
>
> Inconsistent behaviour compared to SimpleDateFormat.
> StringIndexOutOfBoundsException using one format and no exception when using
> another format. (both legal).
> Testcase:
> import org.apache.commons.lang3.time.FastDateFormat;
> import org.hamcrest.Matchers;
> import org.junit.Assert;
> import org.junit.Test;
> import java.text.SimpleDateFormat;
> import java.util.Date;
> public class FastDateFormatBug {
> @Test
> public void testFastFormatWitLongMaxValue(){
> Date date = new Date(Long.MAX_VALUE);
> String dateAsString =
> FastDateFormat.getInstance("yyyy-MM-dd").format(date);
> Assert.assertThat(dateAsString, Matchers.equalTo("292278994-08-17"));
> }
> @Test
> public void testWeirdResultWithMaxValue(){
> Date date = new Date(Long.MAX_VALUE);
> String dateAsString =
> FastDateFormat.getInstance("dd/MM/yyyy").format(date);
> Assert.assertThat(dateAsString, Matchers.equalTo("292278994-08-17"));
> }
> @Test
> public void testSimpleFormatWithLongMaxValueWithLenientOff(){
> Date date = new Date(Long.MAX_VALUE);
> SimpleDateFormat fft = new SimpleDateFormat("yyyy-MM-dd");
> fft.setLenient(false);
> String dateAsString = fft.format(date);
> Assert.assertThat(dateAsString, Matchers.equalTo("292278994-08-17"));
> }
> @Test
> public void testSimpleFormatWithLongMaxValueWithLenientOn(){
> Date date = new Date(Long.MAX_VALUE);
> SimpleDateFormat fft = new SimpleDateFormat("yyyy-MM-dd");
> fft.setLenient(true);
> String dateAsString = fft.format(date);
> Assert.assertThat(dateAsString, Matchers.equalTo("292278994-08-17"));
> }
> }
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