Error conversion XML to PDF: Exception in thread main java.lang.OutOfMemoryError

[Alessandro Bicocchi]

My name is Alessandro Bicocchi, I works in Bonfiglioli Riduttori (Italy).   We create an XML file in ASCII of a size 1 MB (the file XML is an order of 300 rows), when I launch Fop-parser (fop0.20.3) to converte XML to PDF using XSL: the parser stops when it processes the 28 row with this message: "Exception in thread "main" java.lang.OutOfMemoryError". My system is WinNt 4.0 Server, If you could help me solve the problem in some way, I will be greatful.   Thank you very much,   Ing. Alessandro Bicocchi