Problem with Exception

["Güthling, Mark" <ma...@sgbs.sema.de>]

Hello, I get the following error

java.lang.VerifyError: (class:
de/sema/sgbs/webedi/application/servlet/OrderBean
, method: generatePosition signature:
(Ljavax/servlet/http/HttpServletRequest;Lj
ava/lang/String;Ljava/util/Date;I)Ljava/lang/String;) Illegal constant pool
inde
x

method :

private String generatePosition(HttpServletRequest request,String
itemid,java.util.Date delivery,int quantity){...}

call :
oi=new OrderItem(...)
String
position=generatePosition(request,oi.getItemId(),oi.getDeliveryDate(),oi.get
Quantity());

OrderItem works correct...

Any ideas ???

Thanks,

Mark