diff --git a/libjava/ChangeLog b/libjava/ChangeLog
index b2a224b7a8a..05b92374852 100644
--- a/libjava/ChangeLog
+++ b/libjava/ChangeLog
@@ -1,3 +1,9 @@
+2003-12-02  Ito Kazumitsu  <kaz@maczuka.gcd.org>
+
+	* java/text/SimpleDateFormat.java (compileFormat):
+	isLowerCase() and isUpperCase() allow too many characters.
+	Just use >= 'A' && <= 'Z' || >= 'a' && <= 'z'.
+
 2003-12-02  Dalibor Topic <robilad@kaffe.org>
 
 	* java/text/FieldPosition.java (equals): Fixed comment.
diff --git a/libjava/java/text/SimpleDateFormat.java b/libjava/java/text/SimpleDateFormat.java
index 88aaf41f9bd..89f84dde5c6 100644
--- a/libjava/java/text/SimpleDateFormat.java
+++ b/libjava/java/text/SimpleDateFormat.java
@@ -117,8 +117,8 @@ public class SimpleDateFormat extends DateFormat
       field = formatData.getLocalPatternChars().indexOf(thisChar);
       if (field == -1) {
 	current = null;
-	if (Character.isLowerCase (thisChar)
-	    || Character.isUpperCase (thisChar)) {
+	if ((thisChar >= 'A' && thisChar <= 'Z')
+	    || (thisChar >= 'a' && thisChar <= 'z')) {
 	  // Not a valid letter
 	  tokens.add(new FieldSizePair(-1,0));
 	} else if (thisChar == '\'') {