javax.ws.rs.ProcessingException: Unable to find a MessageBodyReader of content-type application/json and type class

Question

I am getting error when we upgarding jboss as 7.1 to wildfly 8.1.

Following is my code where I got the error.

try {

    LOGGER.info("before authenticate {}");

    userTO = restEasyPortalServiceProxy.getLoginService().authenticate(userName, userPass);
    LOGGER.info("After authenticate : {}", userTO);
    userSessionData.setAuthToken(userTO.getAuthToken());

} catch (ResponseProcessingException responseProcessingException) {

    ExceptionMessage exceptionMessage = responseProcessingException
                                        .getResponse()
                                        .readEntity(ExceptionMessage.class);

My jboss-deployment-structure.xml is like same is working over jboss as 7.1

<jboss-deployment-structure>
    <deployment>
        <exclusions>
            <!-- Exclude Version cxf of JBOSS -->
            <module name="org.apache.cxf" />
            <!-- Exclude JAVA EE of JBOSS (javax.ws..) => Add dependency javax.annotation -->
            <module name="javaee.api" />
            <!-- Exclude RestEasy conflict (javax.ws.rs.ext.RunDelegate) -->
            <module name="javax.ws.rs.api" />
            <module name="org.codehaus.jackson.jackson-core-asl" />
            <module name="org.jboss.resteasy.resteasy-atom-provider" />
            <module name="org.jboss.resteasy.resteasy-cdi" />
            <module name="org.jboss.resteasy.resteasy-crypto" />
<!--        <module name="org.jboss.resteasy.resteasy-jackson-provider" /> --> 
            <module name="org.jboss.resteasy.resteasy-jaxb-provider" />
            <module name="org.jboss.resteasy.resteasy-jaxrs" />
            <module name="org.jboss.resteasy.resteasy-jettison-provider" />
            <module name="org.jboss.resteasy.resteasy-jsapi" />
            <module name="org.jboss.resteasy.resteasy-json-p-provider" />
            <module name="org.jboss.resteasy.resteasy-multipart-provider" />
            <module name="org.jboss.resteasy.resteasy-validator-provider-11" />
            <module name="org.jboss.resteasy.resteasy-yaml-provider" />
            <module name="org.codehaus.jackson.jackson-core-asl" />
            <module name="org.codehaus.jackson.jackson-jaxrs" />
            <module name="org.codehaus.jackson.jackson-mapper-asl" />
            <module name="org.codehaus.jackson.jackson-xc" />
            <module name="org.codehaus.jettison" />
            <module name="javax.ws.rs.api" />
        </exclusions>
        <dependencies>
            <module name="org.jboss.resteasy.resteasy-jackson-provider" services="import"/>
        </dependencies>
    </deployment>

Answer 1

I have resolved this issue by adding org.jboss.resteasy.plugins.providers.jackson.ResteasyJacksonProvider in META-INF/services/javax.ws.rs.ext.Providers file .