FULL PRODUCT VERSION :
java version "1.7.0-ea"
Java(TM) SE Runtime Environment (build 1.7.0-ea-b112)
Java HotSpot(TM) 64-Bit Server VM (build 20.0-b01, mixed mode)

ADDITIONAL OS VERSION INFORMATION :
MS Windows 6.1.7601

A DESCRIPTION OF THE PROBLEM :
SimpleDateFormat doesn't throw exception, where it should, instead of this giver wrong results

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Runt test case

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
Exception in thread "main" java.lang.IllegalArgumentException: Illegal pattern character 'Y'
at java.text.SimpleDateFormat.compile(SimpleDateFormat.java:769)
at java.text.SimpleDateFormat.initialize(SimpleDateFormat.java:576)
at java.text.SimpleDateFormat.<init>(SimpleDateFormat.java:501)
at java.text.SimpleDateFormat.<init>(SimpleDateFormat.java:476)
at test.TestCal.main(TestCal.java:15)

ACTUAL -
Mon Dec 31 00:00:00 CET 2012
Mon Dec 31 00:00:00 CET 2012
Mon Dec 31 00:00:00 CET 2012
Mon Dec 31 00:00:00 CET 2012

REPRODUCIBILITY :
This bug can be reproduced always.

---------- BEGIN SOURCE ----------
package test;

import java.text.ParseException;
import java.text.SimpleDateFormat;

public class TestCal {

/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub


SimpleDateFormat sdf = new SimpleDateFormat("YYYY-MM-DD");


String bal = "2013-01-01";
String test2 = "2013-03-03";



try {
System.out.println(sdf.parse(bal).toString());
System.out.println(sdf.parse("2013-01-01").toString());
System.out.println(sdf.parse(test2).toString());
System.out.println(sdf.parse("2013-03-03").toString());


} catch (ParseException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}

}

}

---------- END SOURCE ----------

CUSTOMER SUBMITTED WORKAROUND :
not possible

SUPPORT :
YES