Why is jsp:useBean is not working?
Make sure:
-
Your bean is packaged in a class.
-
You have fully qualified your class name
(eg:
com.bar.package.MyClass) OR
-
You have imported your class into your jsp
(eg:
<%@ pageimport="com.bar.package.MyClass"%>)
Why do I get java.lang.NoClassDefFoundError:
javax/servlet/Filter?
You probably have servlet.jar floating around somewhere it shouldn't be.
This really messes up the classloaders since Tomcat's classloaders
don't act quite as normal as one expects (see links above). servlet.jar
should only be found only once in $CATALINA_HOME/common/lib.
Why do I get java.lang.NoClassDefFoundError:
org/xml/sax/InputSource?
You have conflicting XML api jar files in your classpath. Read the
README or RELEASE-NOTES for more information.
