cannot load JSTL taglib within embedded Jetty server

Question

I am writing a web application that runs within an embedded Jetty instance.

When I attempt to execute a JSTL statement, I receive the following exception:

Answer 1

Two step：

1）add annotation support for the server

//Enable parsing of jndi-related parts of web.xml and jetty-env.xml, #server is

org.eclipse.jetty.webapp.Configuration.ClassList classlist = org.eclipse.jetty.webapp.Configuration.ClassList.setServerDefault(server);
classlist.addAfter("org.eclipse.jetty.webapp.FragmentConfiguration", "org.eclipse.jetty.plus.webapp.EnvConfiguration", "org.eclipse.jetty.plus.webapp.PlusConfiguration");
classlist.addBefore("org.eclipse.jetty.webapp.JettyWebXmlConfiguration", "org.eclipse.jetty.annotations.AnnotationConfiguration");

2) add the follow attribute to the WebAppContext

context.setAttribute("org.eclipse.jetty.server.webapp.ContainerIncludeJarPattern",".*/[^/]*servlet-api-[^/]*\\.jar$|.*/javax.servlet.jsp.jstl-.*\\.jar$|.*/org.apache.taglibs.taglibs-standard-impl-.*\\.jar$");