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From "Paulex Yang (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HARMONY-178) java.text.DateFormat$Field's contructor may replace predefined consts with new value in cache
Date Tue, 07 Mar 2006 02:17:31 GMT
     [ http://issues.apache.org/jira/browse/HARMONY-178?page=all ]

Paulex Yang updated HARMONY-178:
--------------------------------

    Attachment: java.text.DateFormat.patch
                java.text.DateFormatFieldTest.patch

patch for fix and test is attached.  And for your information, the test is extracted from
Harmon JIRA 57.

> java.text.DateFormat$Field's contructor may replace predefined consts with new value
in cache
> ---------------------------------------------------------------------------------------------
>
>          Key: HARMONY-178
>          URL: http://issues.apache.org/jira/browse/HARMONY-178
>      Project: Harmony
>         Type: Bug
>     Reporter: Paulex Yang
>  Attachments: java.text.DateFormat.patch, java.text.DateFormatFieldTest.patch
>
> DataFormat$Field will cache some constants to be searched by method ofCalendarField(int),
but the predefined consts should not be replaced.
> the testcases is as below:
> import java.text.DateFormat;
> import java.util.Calendar;
> import junit.framework.TestCase;
> public class DataFormatFieldTest extends TestCase{
> 	public void test_Constructor2() {
> 		MyField field = new MyField("day of month", Calendar.ERA);
> 		DateFormat.Field realField = DateFormat.Field
> 				.ofCalendarField(Calendar.ERA);
> 		assertSame("Modified calendar field with the same field number",
> 				DateFormat.Field.ERA, realField);
> 	}
> 	static class MyField extends DateFormat.Field {
> 		protected MyField(String fieldName, int calendarField) {
> 			super(fieldName, calendarField);
> 		}
> 		protected String getName() {
> 			return super.getName();
> 		}
> 	}
> }
> Run on RI 5.0, test case passes.
> Run on Harmony, test case fail with message:
> junit.framework.AssertionFailedError: Modified calendar field with the same field number
expected same:<java.text.DateFormat$Field(era)> was not:<DataFormatFieldTest$MyField(day
of month)>
> 	............

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