UDF to handle space value in Message mapping of PI

Hi Experts,

Can anyone please tell me what is the code to remove the single  space coming in the field value of a xml tag and supresssthe Tag.

Eg>Source Xml:  <Name>  <Name>

      Target xml :<Name/>

I have written one but i donot know why it is not working.

For(int i = 0;i<var1.length();i++)

{

if(var1[i].trim.isEqual(""))

result.addValue(ResultLiss.SUPRESS);

else

result.addValue(var1[i]);

]

Could anyone tell me what shold be the exact one to validate space value .

Thanks,

Suparna Banerjee