FULL PRODUCT VERSION :
java 9.0.1

ADDITIONAL OS VERSION INFORMATION :
Linux saber-ubuntu 4.4.0-45-generic #66-Ubuntu SMP Wed Oct 19 14:12:37 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux


A DESCRIPTION OF THE PROBLEM :
java.text.DateFormat parsing error with Locale.German on dates with DD MMM YYYY format.
e.g., parsing "31 Dez 2005" with format "dd MMM yyyy"
with
DateFormat.parseObject();

See more details in attached test case.

REGRESSION. Last worked in version 8u152

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Run the attached test case

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
The test case pass
ACTUAL -
The test case throws a null pointer exception, as the parsing fails.

REPRODUCIBILITY :
This bug can be reproduced always.

---------- BEGIN SOURCE ----------
package edu.utsa.cs.test4incomp;

import java.text.DateFormat;
import java.text.DateFormatSymbols;
import java.text.ParsePosition;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Locale;

import org.junit.Test;

import junit.framework.TestCase;

public class TestLocaleParse extends TestCase{
@Test
public void testLocaleParse(){

        String germanVal = "31 Dez 2005";
        String germanPattern = "dd MMM yyyy";
        
        Calendar cal = (Calendar)parse(germanVal, germanPattern, Locale.GERMAN);
        cal.getTime();
}


protected Object parse(String value, String pattern, Locale locale) {

        DateFormatSymbols symbols = new DateFormatSymbols(locale);
        DateFormat formatter = new SimpleDateFormat(pattern, symbols);
        formatter.setLenient(false);
        
        ParsePosition pos = new ParsePosition(0);
        formatter.parseObject(value, pos);
        if (pos.getErrorIndex() > -1) {
            return null;
        }
        return ((DateFormat)formatter).getCalendar();

    }
}

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