I have seen in the archives several posts detailing the same problem. However I could find no response. Hence I'm posting again. OS - Win NT 4 sp6a Suns JDK 1.2.1 Tomcat 3.2 final The error occurs with JSP pages with a large number (250+) of taglib actions. The java source file is generated (500k). The class file is also generated (90k). When the page is accessed you get the java.lang.VerifyError. When I compiled the generated java file myself with JDK 1.3 (default options) I got a class file of (102k). This class file then works fine when running Tomcat under JDK 1.2.1. However Running Tomcat under JDK 1.3 results in excessively large response times 40+ seconds (see my last post - Performance problems with tomcat 3.2 and Sun's JDK1.3 for Win32). Compiling manually with JDK 1.2.1 produces a class file of 90K and this fails with the same verify error. Does Jasper use any special compiler options ? Could this be a memory problem that's not logged at compile time? Any clues? Regards Duncan -- --------------------------------------------- Duncan Reade TecSys Infopartners S.A. 4, rue Jos Felten, L-1508 Howald Luxembourg [EMAIL PROTECTED] Tel: +352 40116 3303 Fax: +352 40116 2331 ---------------------------------------------