Problem while displaying ' using MessageFormat

[An Sush]

Test.java:

package test;
import java.text.MessageFormat;
import java.util.ResourceBundle;
public class Test {
private static ResourceBundle msgBundle = ResourceBundle.getBundle("Props");
public static void main(String[] args) {
System.out.println(MessageFormat.format(msgBundle.getString("Code"), new String[]{"one","two"}));
}
}

Prop.properties

Code= a'aa {0} bbb {1}

It outputs :

aaa {0} bbb {1}

So as seen the ' is missing and it doesnt substitue the parameter values also. It seems that by having '' (2quotes) in properties file:
Prop.properties

Code= a''aa {0} bbb {1}

the outputr comes as intended:

a'aa one bbb two

Can anyoone tell me whats wrong with the original code? any better workaround? I have modified as follows but not sure if thats the correct way to handle ' coming via properties file:
Modified Test.java

package test;
 
import java.text.MessageFormat;
import java.util.ResourceBundle;
 
public class Test {
private static ResourceBundle msgBundle = ResourceBundle.getBundle("Props");
public static void main(String[] args) {
StringBuffer sb = new StringBuffer();
copyAndFixQuotes(msgBundle.getString("Code"), 0,msgBundle.getString("Code").length(), sb);
System.out.println(MessageFormat.format(sb.toString(), new String[]{"one","two"}));
}
private static final void copyAndFixQuotes(
String source, int start, int end, StringBuffer target) {
for (int i = start; i < end; ++i) {
char ch = source.charAt(i);
if (ch == '\'') {
target.append("''");
} else {
target.append(ch);
}
}
}
}

[Jesper de Jong]

There is nothing wrong; this is just how MessageFormat works. The single quote has a special meaning in the strings you pass to MessageFormat; it can be used for quoting other special characters, so you can include those characters literally in the format pattern.

See the API documentation of class MessageFormat for a detailed explanation.
[ March 20, 2008: Message edited by: Jesper Young ]