Problem with rest web service?

Question

I have a rest web service, that retrives data from my sql database using hibernate technology. While running, the web sevice throws error below

java.lang.NoClassDefFoundError: Could not initialize class com.sample.restlet.HibernateSessionFactory
    com.sample.restlet.EmployeeResource.(EmployeeResource.java:22)
    sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
    sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
    java.lang.reflect.Constructor.newInstance(Unknown Source)
    java.lang.Class.newInstance0(Unknown Source)
    java.lang.Class.newInstance(Unknown Source)
    com.sun.jersey.server.spi.component.ResourceComponentConstructor._construct(ResourceComponentConstructor.java:158)
    com.sun.jersey.server.spi.component.ResourceComponentConstructor.construct(ResourceComponentConstructor.java:148)
    com.sun.jersey.server.impl.resource.PerRequestFactory$PerRequest._getInstance(PerRequestFactory.java:175)
    com.sun.jersey.server.impl.resource.PerRequestFactory$AbstractPerRequest.getInstance(PerRequestFactory.java:132)
    com.sun.jersey.server.impl.application.WebApplicationContext.getResource(WebApplicationContext.java:160)
    com.sun.jersey.server.impl.uri.rules.ResourceClassRule.accept(ResourceClassRule.java:64)
    com.sun.jersey.server.impl.uri.rules.RightHandPathRule.accept(RightHandPathRule.java:111)
    com.sun.jersey.server.impl.uri.rules.RootResourceClassesRule.accept(RootResourceClassesRule.java:63)
    com.sun.jersey.server.impl.application.WebApplicationImpl._handleRequest(WebApplicationImpl.java:543)
    com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:502)
    com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:493)
    com.sun.jersey.spi.container.servlet.WebComponent.service(WebComponent.java:308)
    com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:314)
    com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:239)

I dont get why this problem is coming. Please help.

Pascal Thivent Pascal Thivent · Accepted Answer · 2010-08-03T17:51:07

A java.lang.NoClassDefFoundError: Could not initialize class XXX means that the class is found, but its initialization failed. Possible cause include:

missing dependent classes.
an exception thrown during execution of a static initialization block in the class.

Don't you get more info in the server logs? Any Caused by?

Providing the code of com.sample.restlet.HibernateSessionFactory might help too?

Problem with rest web service?

1 Answers