Name: dfC67450 Date: 03/02/98



Object[] java.text.MessageFormat.parse(String text, ParsePosition pp) has different
behavior in case of text == null. If MessageFormat pattern is empty string it
returns array of length 10 filled with nulls. If pattern is not empty it throws
NullPointerException.

Here is the test demonstrating the bug:

-----------------TestMF.java------------------------
import java.text.*;

public class TestMF {
    public static void main (String args[]){
      String[] patterns = {"", "one", "{0,date,short}"};
      MessageFormat mf = new MessageFormat("");
  
      for (int i = 0; i < patterns.length; i++) {
        String pattern = patterns[i];
        mf.applyPattern(pattern);
        try {
          Object[] array = mf.parse(null, new ParsePosition(0));
          System.out.println("pattern: \"" + pattern + "\"");
          System.out.print(" parsedObjects: {");
          for (int j = 0; j < array.length; j++) {
            if (array[j] != null) System.out.print("\"" + array[j].toString() + "\"");
            else System.out.print("null");
            if (j < array.length - 1) System.out.print(",");
          }
          System.out.println("}") ;
        } catch (Exception e) {
          System.out.println("pattern: \"" + pattern + "\"");
          System.out.println(" Exception: " + e.toString());
        }
      }
        
    }

}

---------Output from the test ---------------------
pattern: ""
  parsedObjects: {null,null,null,null,null,null,null,null,null,null}
pattern: "one"
  Exception: java.lang.NullPointerException
pattern: "{0,date,short}"
  Exception: java.lang.NullPointerException
--------------------------------------------------

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