Unable to Produce JSON - javax.ws.rs.WebApplicationException: com.sun.jersey.api.MessageException

Am using Jersey 1.15, JDK 1.6, Tomcat 7, Maven 2.2.1 to create a simple Restful Web Service that should return a JSON String from a POJO that I mapped. Here's my pojo: ``` package com.myservice.domain; import javax.xml.bind.annotation.XmlRootElement; @XmlRootElement public class Person { private String firstName; private String lastName; // Getters & Setters } ``` my webservice: ``` package com.myservice.resource; import javax.ws.rs.GET; import javax.ws.rs.Path; import javax.ws.rs.PathParam; import javax.ws.rs.Produces; import javax.ws.rs.core.MediaType; import javax.ws.rs.core.Response; import com.myservice.domain.Person; @Path("/service") public class MyService { @GET @Path("showPerson") @Produces(MediaType.APPLICATION_JSON) public Person getPerson() { Person person = new Person(); person.setFirstName("John"); person.setLastName("Doe"); return person; } } ``` Here's my pom.xml: ``` <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>com.myservice</groupId> <artifactId>myservice</artifactId> <version>0.0.1-SNAPSHOT</version> <packaging>war</packaging> <name>My Web Service</name> <dependencies> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>4.8.2</version> <scope>test</scope> </dependency> <dependency> <groupId>com.sun.jersey</groupId> <artifactId>jersey-servlet</artifactId> <version>1.15</version> <scope>runtime</scope> </dependency> <dependency> <groupId>com.sun.jersey</groupId> <artifactId>jersey-server</artifactId> <version>1.15</version> </dependency> <dependency> <groupId>com.sun.jersey</groupId> <artifactId>jersey-core</artifactId> <version>1.15</version> </dependency> <dependency> <groupId>com.sun.jersey</groupId> <artifactId>jersey-json</artifactId> <version>1.14</version> </dependency> <dependency> <groupId>com.sun.jersey.contribs</groupId> <artifactId>jersey-multipart</artifactId> <version>1.14</version> </dependency> <dependency> <groupId>org.codehaus.jackson</groupId> <artifactId>jackson-jaxrs</artifactId> <version>1.9.9</version> </dependency> </dependencies> <build> <finalName>myservice</finalName> <plugins> <plugin> <artifactId>maven-compiler-plugin</artifactId> <configuration> <source>1.6</source> <target>1.6</target> </configuration> </plugin> </plugins> </build> </project> ``` My web.xml: ``` <?xml version="1.0" encoding="ISO-8859-1"?> <web-app 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_3_0.xsd" version="3.0" metadata-complete="true"> <display-name>My Web Service</display-name> <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>com.myservice.resource</param-value> </init-param> <init-param> <param-name>com.sun.jersey.api.json.POJOMappingFeature</param-name> <param-value>true</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> </web-app> ``` After deploying to tomcat, when I try to invoke the web service like this: ``` curl -X GET http://localhost:8080/myservice/rest/service/showPerson ``` I get the following error: ``` Nov 20, 2012 10:40:06 AM com.sun.jersey.spi.container.ContainerResponse write SEVERE: A message body writer for Java class com.myservice.domain.Person, and Java type class com.myservice.domain.Person, and MIME media type application/json was not found Nov 20, 2012 10:40:06 AM com.sun.jersey.spi.container.ContainerResponse write SEVERE: A message body writer for Java class com.myservice.domain.Person, and Java type class com.myservice.domain.Person, and MIME media type application/json was not found Nov 20, 2012 10:40:06 AM com.sun.jersey.spi.container.ContainerResponse write SEVERE: The registered message body writers compatible with the MIME media type are: */* -> com.sun.jersey.core.impl.provider.entity.FormProvider com.sun.jersey.core.impl.provider.entity.StringProvider com.sun.jersey.core.impl.provider.entity.ByteArrayProvider com.sun.jersey.core.impl.provider.entity.FileProvider com.sun.jersey.core.impl.provider.entity.InputStreamProvider com.sun.jersey.core.impl.provider.entity.DataSourceProvider com.sun.jersey.core.impl.provider.entity.XMLJAXBElementProvider$General com.sun.jersey.core.impl.provider.entity.ReaderProvider com.sun.jersey.core.impl.provider.entity.DocumentProvider com.sun.jersey.core.impl.provider.entity.StreamingOutputProviderfg com.sun.jersey.core.impl.provider.entity.SourceProvider$SourceWriter com.sun.jersey.server.impl.template.ViewableMessageBodyWriter com.sun.jersey.core.impl.provider.entity.XMLRootElementProvider$General com.sun.jersey.core.impl.provider.entity.XMLListElementProvider$General Nov 20, 2012 10:40:06 AM com.sun.jersey.spi.container.ContainerResponse write SEVERE: The registered message body writers compatible with the MIME media type are: */* -> com.sun.jersey.core.impl.provider.entity.FormProvider com.sun.jersey.core.impl.provider.entity.StringProvider com.sun.jersey.core.impl.provider.entity.ByteArrayProvider com.sun.jersey.core.impl.provider.entity.FileProvider com.sun.jersey.core.impl.provider.entity.InputStreamProvider com.sun.jersey.core.impl.provider.entity.DataSourceProvider com.sun.jersey.core.impl.provider.entity.XMLJAXBElementProvider$General com.sun.jersey.core.impl.provider.entity.ReaderProvider com.sun.jersey.core.impl.provider.entity.DocumentProvider com.sun.jersey.core.impl.provider.entity.StreamingOutputProvider com.sun.jersey.core.impl.provider.entity.SourceProvider$SourceWriter com.sun.jersey.server.impl.template.ViewableMessageBodyWriter com.sun.jersey.core.impl.provider.entity.XMLRootElementProvider$General com.sun.jersey.core.impl.provider.entity.XMLListElementProvider$General SEVERE: Mapped exception to response: 500 (Internal Server Error) javax.ws.rs.WebApplicationException: com.sun.jersey.api.MessageException: A message body writer for Java class com.myservice.domain.Person, and Java type class com.myservice.domain.Person, and MIME media type application/json was not found com.sun.jersey.api.MessageException: A message body writer for Java class com.myservice.domain.Person, and Java type class com.myservice.domain.Person, and MIME media type application/json was not found HTTP Status 500 - Internal Server Error The server encountered an internal error that prevented it from fulfilling this request. ``` After scouring the Internet, I tried inserting the following proposed solution that everyone suggested into web.xml: ``` <init-param> <param-name>com.sun.jersey.api.json.POJOMappingFeature</param-name> <param-value>true</param-value> </init-param> ``` But it still gives me the same issue! It does return the correct data marshalled to XML if I use APPLICATION_XML, however. Would really appreciate it if someone could point me in the right direction. Thank you very much for taking the time to read this.