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eclipsetomcatservletsillegalargumentexceptionservlet-mapping

IllegalArgumentException: The servlets named [Hello] and [com.crunchify.jsp.servlet.HelloCrunchify] are both mapped to the url-pattern

I have created a dynamic web project in eclipse as mentioned in this doc: sampledoc

When I run the program in server, I get this error in the console:

Caused by: java.lang.IllegalArgumentException: The servlets named [Hello] and [com.crunchify.jsp.servlet.HelloCrunchify] are both mapped to the url-pattern [/CrunchifyServlet] which is not permitted
    at org.apache.tomcat.util.descriptor.web.WebXml.addServletMapping(WebXml.java:308)
    at org.apache.catalina.startup.ContextConfig.processAnnotationWebServlet(ContextConfig.java:2373)
    at org.apache.catalina.startup.ContextConfig.processAnnotationsStream(ContextConfig.java:2055)
    at org.apache.catalina.startup.ContextConfig.processAnnotationsWebResource(ContextConfig.java:1940)
    at org.apache.catalina.startup.ContextConfig.processAnnotationsWebResource(ContextConfig.java:1934)
    at org.apache.catalina.startup.ContextConfig.processAnnotationsWebResource(ContextConfig.java:1934)
    at org.apache.catalina.startup.ContextConfig.processAnnotationsWebResource(ContextConfig.java:1934)
    at org.apache.catalina.startup.ContextConfig.processAnnotationsWebResource(ContextConfig.java:1934)
    at org.apache.catalina.startup.ContextConfig.webConfig(ContextConfig.java:1147)
    at org.apache.catalina.startup.ContextConfig.configureStart(ContextConfig.java:779)
    at org.apache.catalina.startup.ContextConfig.lifecycleEvent(ContextConfig.java:306)
    at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:95)
    at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:90)
    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5150)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:147)
    ... 6 more

I tried deleting the server from the Servers tab and adding again. Did a project clean. Nothing seems to solve the problem.

My web.xml looks like this:

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"
version="3.0">
<display-name>CrunchifyJSPServletExample</display-name>
<welcome-file-list>
    <welcome-file>index.html</welcome-file>
    <welcome-file>index.htm</welcome-file>
    <welcome-file>index.jsp</welcome-file>
    <welcome-file>default.html</welcome-file>
    <welcome-file>default.htm</welcome-file>
    <welcome-file>default.jsp</welcome-file>
</welcome-file-list>
<servlet>
    <servlet-name>Hello</servlet-name>
    <servlet-class>com.crunchify.jsp.servlet.HelloCrunchify</servlet-class>
</servlet>
<servlet-mapping>
    <servlet-name>Hello</servlet-name>
    <url-pattern>/CrunchifyServlet</url-pattern>
</servlet-mapping>

I am using Tomcat 8 and my java home is set to "javac 1.8.0_05" . Please help!!!

Solution

  • I think the key part of that stack trace is this:

    The servlets named [Hello] and [com.crunchify.jsp.servlet.HelloCrunchify] are both mapped to the url-pattern [/CrunchifyServlet] which is not permitted

    You will either need to remove one of these servlets or deconflict the url-patterns. Do you have another application that is mapped to the same url-pattern?