VUGen Correlation - String Length

Hi. I'm trying to correlate a long dynamic string but for some reason it doesn't retrieve the entire string - just a portion of it. I already have the max param length function in place. I also configured the correlation setting xml file to accommodate the parameter length. I also tried manually storing the long string to a parameter. But when I called it, it's only passing a portion. Is this a limitation? I'm using the Java/Http protocol. I also tried it under the web/html protocol but same issue. Please advise. Thank you.