I believe the problem is because of JDK version missmatch. You must be compiling your source with JDK 1.5 and deploying onto Weblogic which uses JDK 1.4 or earlier version. Try to compile and build your Jar file using JDK 1.4(or whichever used by Weblogic) and deploy. I faced the same problem when I compiled using JDK1.5 and deployed to Weblogic 8.1 which uses JDK 1.4.
Any sample chapters available from this book ?? This should help to check the quality of content. Does anyone knows site where I can get sample chapters from this book ?? Thanks, Mahesh SCJP, SCEA-I
