Java build 1.4.2_07-b05, mixed mode - issues with special character

[Avantha Weerakkody]

I am having a hard time with special characters in a xml tag while submitting that via http url connection

Ex:- <AvailableModality code="0#1 D�A">
<AvailableModality code="0#2 D�AS SEN">

The java version is �Java build 1.4.2_07-b05, mixed mode� under Linux. What will happen is , it will replace the special character with a Square
Ex:- 0#1 D�A changing to 0#1 D��A (character is not display in the message)

But this problem is not with java buid 1.4.2_04-b05, mixed mode.
java version "1.4.2_04"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.2_04-b05)
Java HotSpot(TM) Client VM (build 1.4.2_04-b05, mixed mode)


Can anyone give some daylight to the above issue. Many thanks in advance.