org.glassfish.jersey.servlet.ServletContainer ClassNotFoundException

Question

I have been getting a ClassNotFoundException with org.glassfish.jersey.servlet.ServletContainer but it peculiarly started last night when I tried to start/re-start my Tomcat server (v7) with Eclipse Juno.

Not sure what is going on. What's bizarre is that it just started happening last night while it was working perfectly well before that.

Here is the stacktrace:

Feb 25, 2014 11:11:19 AM org.apache.catalina.core.ApplicationContext log INFO: Marking servlet com.att.ucomm.admin.UCommAdminFunctions as unavailable Feb 25, 2014 11:11:19 AM org.apache.catalina.core.StandardContext loadOnStartup SEVERE: Servlet /UCommAdminFunctions threw load() exception java.lang.ClassNotFoundException: org.glassfish.jersey.servlet.ServletContainer at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1671) at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1516) at org.apache.catalina.core.DefaultInstanceManager.loadClass(DefaultInstanceManager.java:415) at org.apache.catalina.core.DefaultInstanceManager.loadClassMaybePrivileged(DefaultInstanceManager.java:397) at org.apache.catalina.core.DefaultInstanceManager.newInstance(DefaultInstanceManager.java:118    ) at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1048) at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:996) at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:4762) at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5045) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:140) at org.apache.catalina.core.StandardContext.reload(StandardContext.java:3670) at org.apache.catalina.loader.WebappLoader.backgroundProcess(WebappLoader.java:424) at org.apache.catalina.core.ContainerBase.backgroundProcess(ContainerBase.java:1207) at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1393) at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1403) at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1403) at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.run(ContainerBase.java:1382) at java.lang.Thread.run(Unknown Source)  Feb 25, 2014 11:11:19 AM org.apache.catalina.core.StandardContext reload INFO: Reloading Context with name [/UCommAdminFunctions] is completed Feb 25, 2014 11:13:33 AM org.apache.catalina.core.StandardWrapperValve invoke INFO: Servlet com.att.ucomm.admin.UCommAdminFunctions is currently unavailable 

Here is my web.xml

<?xml version="1.0" encoding="UTF-8"?> <web-app version="2.5"     xmlns="http://java.sun.com/xml/ns/javaee"     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"     xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">  <servlet>     <servlet-name>com.att.ucomm.admin.UCommAdminFunctions</servlet-name>     <servlet-class>org.glassfish.jersey.servlet.ServletContainer</servlet-class>      <!-- Register JAX-RS Application, if needed. -->     <init-param>         <param-name>com.att.ucomm.admin.UCommAdminFunctions</param-name>         <param-value>my.package.MyApplication</param-value>     </init-param>      <!-- Register resources and providers under my.package. -->     <init-param>         <param-name>jersey.config.server.provider.packages</param-name>         <param-value>com.att.ucomm.admin</param-value>     </init-param>      <!-- Register my custom provider (not needed if it's in my.package) AND LoggingFilter. -->     <init-param>         <param-name>jersey.config.server.provider.classnames</param-name>         <param-value>com.att.ucomm.admin.SecurityRequestFilter;org.glassfish.jersey.filter.LoggingFilter</param-value>     </init-param>      <!-- Enable Tracing support. -->     <init-param>         <param-name>jersey.config.server.tracing</param-name>         <param-value>ALL</param-value>     </init-param>      <load-on-startup>1</load-on-startup> </servlet>  <servlet-mapping>     <servlet-name>com.att.ucomm.admin.UCommAdminFunctions</servlet-name>     <url-pattern>/rest/*</url-pattern> </servlet-mapping> <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> </web-app> 

I made sure that the jar files for jersey were still there in WEB-INF/lib:

Answer 1

The problem:

java.lang.ClassNotFoundException: org.glassfish.jersey.servlet.ServletContainer 

indicates that you try to use the Jersey 2.x servlet, but you are supplying the Jersey 1.x libs.

For Jersey 1.x you have to do it like this:

<servlet>   <servlet-name>Jersey REST Service</servlet-name> <servlet-class>   com.sun.jersey.spi.container.servlet.ServletContainer </servlet-class>   <init-param>     <param-name>com.sun.jersey.config.property.packages</param-name>     <param-value>sample.hello.resources</param-value>   </init-param>   <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping>   <servlet-name>Jersey REST Service</servlet-name>   <url-pattern>/rest/*</url-pattern> </servlet-mapping> 

For more information check the Jersey 1.x documentation.

If you instead want to use Jersey 2.x then you'll have to supply the Jersey 2.x libs. In a maven based project you can use the following:

<dependency>     <groupId>org.glassfish.jersey.containers</groupId>     <artifactId>jersey-container-servlet</artifactId>     <version>2.xx</version> </dependency> <!-- if you are using Jersey client specific features without the server side --> <dependency>     <groupId>org.glassfish.jersey.core</groupId>     <artifactId>jersey-client</artifactId>     <version>2.xx</version> </dependency> 

For Jersey 2.x you don't need to setup anything in your web.xml, it is sufficient to supply a class similar to this:

import javax.ws.rs.ApplicationPath; import javax.ws.rs.core.Application;  @ApplicationPath("rest") public class ApplicationConfig extends Application {  } 

For more information, check the Jersey documentation.

See also:

• java.lang.ClassNotFoundException: com.sun.jersey.spi.container.servlet.ServletContainer
• Jersey Services with Tomcat and Eclipse
• ClassNotFoundException when starting tomcat