jbpm4与struts2整合包冲突
jbpm4与struts2整合包冲突错误如下：
description The server encountered an internal error () that prevented it from fulfilling this request.exceptionjavax.servlet.ServletException: java.lang.LinkageError: loader constraint violation: when resolving interface method "javax.servlet.jsp.JspApplicationContext.getExpressionFactory()Ljavax/el/ExpressionFactory;" the class loader (instance of org/apache/jasper/servlet/JasperLoader) of the current class, org/apache/jsp/login_jsp, and the class loader (instance of org/apache/catalina/loader/StandardClassLoader) for resolved class, javax/servlet/jsp/JspApplicationContext, have different Class objects for the type javax/el/ExpressionFactory used in the signatureorg.apache.jasper.servlet.JspServlet.service(JspServlet.java:274)javax.servlet.http.HttpServlet.service(HttpServlet.java:803)root causejava.lang.LinkageError: loader constraint violation: when resolving interface method "javax.servlet.jsp.JspApplicationContext.getExpressionFactory()Ljavax/el/ExpressionFactory;" the class loader (instance of org/apache/jasper/servlet/JasperLoader) of the current class, org/apache/jsp/login_jsp, and the class loader (instance of org/apache/catalina/loader/StandardClassLoader) for resolved class, javax/servlet/jsp/JspApplicationContext, have different Class objects for the type javax/el/ExpressionFactory used in the signatureorg.apache.jsp.login_jsp._jspInit(login_jsp.java:21)org.apache.jasper.runtime.HttpJspBase.init(HttpJspBase.java:80)org.apache.jasper.servlet.JspServletWrapper.getServlet(JspServletWrapper.java:157)org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:320)org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:320)org.apache.jasper.servlet.JspServlet.service(JspServlet.java:266)javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
