1. tomcat6中的类加载器:
不同于传统的委派模型
* Bootstrap classes of your JVM( c库及$JAVA_HOME/jre/lib/ext) * System class loader classses ($CATALINA_HOME/bin/bootstrap.jar,$CATALINA_HOME/bin/tomcat-juli.jar)
* /WEB-INF/classes of your web application * /WEB-INF/lib/*.jar of your web application * $CATALINA_HOME/lib/classes * $CATALINA_HOME/lib/*.jar
2. 传统的jvm委派模型
3. osgi委培模型