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The ResourceConfig instance does not contain any root resource classes

Asked 2010-12-10T18:39:14.480
81

What's going wrong here?

The ResourceConfig instance does not contain any root resource classes.
Dec 10, 2010 10:21:24 AM com.sun.jersey.spi.spring.container.servlet.SpringServlet initiate
SEVERE: Exception occurred when intialization
com.sun.jersey.api.container.ContainerException: The ResourceConfig instance does not contain any root resource classes.
        at com.sun.jersey.server.impl.application.RootResourceUriRules.<init>(RootResourceUriRules.java:103)
        at com.sun.jersey.server.impl.application.WebApplicationImpl._initiate(WebApplicationImpl.java:1182)
        at com.sun.jersey.server.impl.application.WebApplicationImpl.access$600(WebApplicationImpl.java:161)
        at com.sun.jersey.server.impl.application.WebApplicationImpl$12.f(WebApplicationImpl.java:698)
        at com.sun.jersey.server.impl.application.WebApplicationImpl$12.f(WebApplicationImpl.java:695)
        at com.sun.jersey.spi.inject.Errors.processWithErrors(Errors.java:197)
        at com.sun.jersey.server.impl.application.WebApplicationImpl.initiate(WebApplicationImpl.java:695)
        at com.sun.jersey.spi.spring.container.servlet.SpringServlet.initiate(SpringServlet.java:117)

Filter:

<filter>
    <filter-name>JerseyFilter</filter-name>
    <filter-class>com.sun.jersey.spi.spring.container.servlet.SpringServlet</filter-class>

    <init-param>
        <param-name>com.sun.jersey.config.feature.Redirect</param-name>
        <param-value>true</param-value>
    </init-param>

    <init-param>
        <param-name>com.sun.jersey.config.property.JSPTemplatesBasePath</param-name>
        <param-value>/views/</param-value>
    </init-param>

    <init-param>
        <param-name>com.sun.jersey.config.property.WebPageContentRegex</param-name>
        <param-value>/(images|css|jsp)/.*</param-value>
    </i
java jersey
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3 Answers

9

I am getting this exception, because of a missing ResourseConfig in Web.xml.

Add:

<init-param>
    <param-name>com.sun.jersey.config.property.packages</param-name>
    <param-value>/* Name of Package where your service class exists */</param-value>
</init-param>

Service class means: class which contains services like: @Path("/orders")

answered 2013-02-22T06:04:18.793
3

Another possible cause of this error is that you have forgotten to add the libraries that are already in the /WEBINF/lib folder to the build path (e.g. when importing a .war-file and not checking the libraries when asked in the wizard). Just happened to me.

answered 2013-05-13T08:31:47.343
2

I had to add a trailing forward slash to the end of @path

@Path ("/admin/")
answered 2013-04-04T14:26:20.870

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