1 Solve JBoss-boot.jar to get a low version of JBoss, you can find this JAR package. Then dissemble it to the directory you lack. 2 Solve javax.serlvet.jar to Tomcat, you can find this servlet.jar package. Then, the JAR package is renamed the name of Javax.serlvet.jar. Copy to the lack of catalog in your Eclipse. OK. This is solved.