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After Tomcat 6 is released, the error org. Apache. Jasper. jasperexception: Java. Lang. nullpointerexception is returned when you access JSP.

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Org. Apache. Jasper. jasperexception: Java. Lang. nullpointerexception
Org. Apache. Jasper. servlet. jspservletwrapper. handlejspexception (jspservletwrapper. Java: 522)
Org. Apache. Jasper. servlet. jspservletwrapper. Service (jspservletwrapper. Java: 356)
Org. Apache. Jasper. servlet. jspservlet. servicejspfile (jspservlet. Java: 337)
Org. Apache. Jasper. servlet. jspservlet. Service (jspservlet. Java: 266)
Javax. servlet. http. httpservlet. Service (httpservlet. Java: 803)
Org. Apache. struts2.dispatcher. filterdispatcher. dofilter (filterdispatcher. Java: 416)
Org. Apache. struts2.dispatcher. actioncontextcleanup. dofilter (actioncontextcleanup. Java: 99)

Apache Software Foundation/tomcat6.0/webapps/your project/WEB-INF/lib below to see if there is a servlet-api.jar, jsp-api.jar and so on under the Apache Software Foundation/tomcat6.0/lib jar package already exists, if yes, delete it. After restart, the problem is solved.

Org. Apache. Jasper. jasperexception: Java. Lang. nullpointerexception
Org. Apache. Jasper. servlet. jspservletwrapper. handlejspexception (jspservletwrapper. Java: 522)
Org. Apache. Jasper. servlet. jspservletwrapper. Service (jspservletwrapper. Java: 356)
Org. Apache. Jasper. servlet. jspservlet. servicejspfile (jspservlet. Java: 337)
Org. Apache. Jasper. servlet. jspservlet. Service (jspservlet. Java: 266)
Javax. servlet. http. httpservlet. Service (httpservlet. Java: 803)
Org. Apache. struts2.dispatcher. filterdispatcher. dofilter (filterdispatcher. Java: 416)
Org. Apache. struts2.dispatcher. actioncontextcleanup. dofilter (actioncontextcleanup. Java: 99)

Apache Software Foundation/tomcat6.0/webapps/your project/WEB-INF/lib below to see if there is a servlet-api.jar, jsp-api.jar and so on under the Apache Software Foundation/tomcat6.0/lib jar package already exists, if yes, delete it. After restart, the problem is solved.

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