Chapter 2. Modules and dependencies
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## Chapter 2. Modules and dependencies

## 2.1. Java SE Compatibility

Until version 2.6, Jersey was compiled with Java SE 6. This has changes in Jersey 2.7. Now almost all Jersey components are compiled with Java SE 7 target. It means, that you will need at least Java SE 7 to be able to compile and run your application that is using latest Jersey. Only `core-common` and `core-client` modules are still compiled with Java class version runnable with Java SE 6.

## 2.2. Introduction to Jersey dependencies

Jersey is built, assembled and installed using Apache Maven. Non-snapshot Jersey releases are deployed to the Central Maven Repository. Jersey is also being deployed to Java.Net Maven repositories, which contain also Jersey SNAPSHOT versions. In case you would want to test the latest development builds check out the Java.Net Snapshots Maven repository.

An application that uses Jersey and depends on Jersey modules is in turn required to also include in the application dependencies the set of 3rd party modules that Jersey modules depend on. Jersey is designed as a pluggable component architecture and different applications can therefore require different sets of Jersey modules. This also means that the set of external Jersey dependencies required to be included in the application dependencies may vary in each application based on the Jersey modules that are being used by the application.

Developers using Maven or a Maven-aware build system in their projects are likely to find it easier to include and manage dependencies of their applications compared to developers using ant or other build systems that are not compatible with Maven. This document will explain to both maven and non-maven developers how to depend on Jersey modules in their application. Ant developers are likely to find the Ant Tasks for Maven very useful.

## 2.3. Common Jersey Use Cases

### 2.3.1. Servlet based application on Glassfish

If you are using Glassfish application server, you don't need to package anything with your application, everything is already included. You just need to declare (provided) dependency on JAX-RS API to be able to compile your application.

    <dependency>
        <groupId>javax.ws.rs</groupId>
        <artifactId>javax.ws.rs-api</artifactId>
        <version>2.0</version>
        <scope>provided</scope>
    </dependency>

If you are using any Jersey specific feature, you will need to depend on Jersey directly.

    <dependency>
        <groupId>org.glassfish.jersey.containers</groupId>
        <artifactId>jersey-container-servlet</artifactId>
        <version>2.10.1</version>
        <scope>provided</scope>
    </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>2.10.1</version>
        <scope>provided</scope>
    </dependency>

### 2.3.2. Servlet based server-side application

Following dependencies apply to application server (servlet containers) without any integrated JAX-RS implementation. Then application needs to include JAX-RS API and Jersey implementation in deployed application.

    <dependency>
        <groupId>org.glassfish.jersey.containers</groupId>
        <!-- if your container implements Servlet API older than 3.0, use "jersey-container-servlet-core"  -->
        <artifactId>jersey-container-servlet</artifactId>
        <version>2.10.1</version>
    </dependency>
    <!-- Required only when you are using JAX-RS Client -->
    <dependency>
        <groupId>org.glassfish.jersey.core</groupId>
        <artifactId>jersey-client</artifactId>
        <version>2.10.1</version>
    </dependency>

### 2.3.3. Client application on JDK

Applications running on plain JDK using only client part of JAX-RS specification need to depend only on client. There are various additional modules which can be added, like for example grizzly or apache or jetty connector (see dependencies snipped below). Jersey client runs by default with plain JDK (using HttpUrlConnection). See Chapter 5, Client API. for more details.

    <dependency>
        <groupId>org.glassfish.jersey.core</groupId>
        <artifactId>jersey-client</artifactId>
        <version>2.10.1</version>
    </dependency>

Currently available connectors:

    <dependency>
        <groupId>org.glassfish.jersey.connectors</groupId>
        <artifactId>jersey-grizzly-connector</artifactId>
        <version>2.10.1</version>
    </dependency>

    <dependency>
        <groupId>org.glassfish.jersey.connectors</groupId>
        <artifactId>jersey-apache-connector</artifactId>
        <version>2.10.1</version>
    </dependency>

    <dependency>
        <groupId>org.glassfish.jersey.connectors</groupId>
        <artifactId>jersey-jetty-connector</artifactId>
        <version>2.10.1</version>
    </dependency>

### 2.3.4. Server-side application on supported containers

Apart for a standard JAX-RS Servlet-based deployment that works with any Servlet container that supports Servlet 2.5 and higher, Jersey provides support for programmatic deployment to the following containers: Grizzly 2 (HTTP and Servlet), JDK Http server, Simple Http server and Jetty Http server. This chapter presents only required maven dependencies, more information can be found in Chapter 4, Application Deployment and Runtime Environments.

    <dependency>
        <groupId>org.glassfish.jersey.containers</groupId>
        <artifactId>jersey-container-grizzly2-http</artifactId>
        <version>2.10.1</version>
    </dependency>

    <dependency>
        <groupId>org.glassfish.jersey.containers</groupId>
        <artifactId>jersey-container-grizzly2-servlet</artifactId>
        <version>2.10.1</version>
    </dependency>

    <dependency>
        <groupId>org.glassfish.jersey.containers</groupId>
        <artifactId>jersey-container-jdk-http</artifactId>
        <version>2.10.1</version>
    </dependency>

    <dependency>
        <groupId>org.glassfish.jersey.containers</groupId>
        <artifactId>jersey-container-simple-http</artifactId>
        <version>2.10.1</version>
    </dependency>

    <dependency>
        <groupId>org.glassfish.jersey.containers</groupId>
        <artifactId>jersey-container-jetty-http</artifactId>
        <version>2.10.1</version>
    </dependency>

    <dependency>
        <groupId>org.glassfish.jersey.containers</groupId>
        <artifactId>jersey-container-jetty-servlet</artifactId>
        <version>2.10.1</version>
    </dependency>

## 2.4. List of modules

The following chapters provide an overview of all Jersey modules and their dependencies with links to the respective binaries (follow a link on a module name to get complete set of downloadable dependencies).

Table 2.1. Jersey Core

Jersey Core
jersey-client | Jersey core client implementation
jersey-common | Jersey core common packages
jersey-server | Jersey core server implementation

Table 2.2. Jersey Containers

Jersey Containers
jersey-container-grizzly2-http | Grizzly 2 Http Container.
jersey-container-grizzly2-servlet | Grizzly 2 Servlet Container.
jersey-container-jdk-http | JDK Http Container
jersey-container-jetty-http | Jetty Http Container
jersey-container-jetty-servlet | Jetty Servlet Container
jersey-container-servlet | Jersey core Servlet 3.x implementation
jersey-container-servlet-core | Jersey core Servlet 2.x implementation
jersey-container-simple-http | Simple Http Container

Table 2.3. Jersey Connectors

Jersey Connectors
jersey-apache-connector | Jersey Client Transport via Apache
jersey-grizzly-connector | Jersey Client Transport via Grizzly
jersey-jetty-connector | Jersey Client Transport via Jetty

Table 2.4. Jersey Media

Jersey Media
html-json | JAX-RS Reader/Writer via net.java.html.json library that provides JSON serialization and deserialization using lightweight (no reflection) net.java.html.json library. Define your objects via @Model annotation. Use them in Jersey.
jersey-media-json-jackson | Jersey JSON Jackson (2.x) entity providers support module.
jersey-media-json-jettison | Jersey JSON Jettison entity providers support module.
jersey-media-json-processing | Jersey JSON-P (JSR 353) entity providers support proxy module.
jersey-media-moxy | Jersey JSON entity providers support module based on EclipseLink MOXy.
jersey-media-multipart | Jersey Multipart entity providers support module.
jersey-media-sse | Jersey Server Sent Events entity providers support module.

Table 2.5. Jersey Extensions

Jersey Extensions
jersey-bean-validation | Jersey extension module providing support for Bean Validation (JSR-349) API.
jersey-declarative-linking | Jersey support for declarative hyperlinking.
jersey-entity-filtering | Jersey extension module providing support for Entity Data Filtering.
jersey-metainf-services | Jersey extension module enabling automatic registration of JAX-RS providers (MBW/MBR/EM) via META-INF/services mechanism.
jersey-mvc | Jersey extension module providing support for MVC.
jersey-mvc-bean-validation | Jersey extension module providing support for Bean Validation in MVC.
jersey-mvc-freemarker | Jersey extension module providing support for Freemarker templates.
jersey-mvc-jsp | Jersey extension module providing support for JSP templates.
jersey-mvc-mustache | Jersey extension module providing support for Mustache templates.
jersey-proxy-client | Jersey extension module providing support for (proxy-based) high-level client API.
jersey-servlet-portability | Library that enables writing web applications that run with both Jersey 1.x and Jersey 2.x servlet containers.
jersey-spring3 | Jersey extension module providing support for Spring 3 integration.
jersey-wadl-doclet | A doclet that generates a resourcedoc xml file: this file contains the javadoc documentation of resource classes, so that this can be used for extending generated wadl with useful documentation.

Table 2.6. Jersey Test Framework

Jersey Test Framework
jersey-test-framework-core | Jersey Test Framework Core

Table 2.7. Jersey Test Framework Providers

Jersey Test Framework Providers
jersey-test-framework-provider-bundle | Jersey Test Framework Providers Bundle
jersey-test-framework-provider-external | Jersey Test Framework - External container
jersey-test-framework-provider-grizzly2 | Jersey Test Framework - Grizzly2 container
jersey-test-framework-provider-inmemory | Jersey Test Framework - InMemory container
jersey-test-framework-provider-jdk-http | Jersey Test Framework - JDK HTTP container
jersey-test-framework-provider-jetty | Jersey Test Framework - Jetty HTTP container
jersey-test-framework-provider-simple | Jersey Test Framework - Simple HTTP container

Table 2.8. Jersey Glassfish Bundles

Jersey Glassfish Bundles
jersey-gf-cdi | Jersey CDI for GlassFish integration
jersey-gf-cdi-ban-custom-hk2-binding | Jersey CDI for GlassFish integration - this module disables custom HK2 binding
jersey-gf-ejb | Jersey EJB for GlassFish integration

Table 2.9. Security

Security
oauth1-client | Module that adds an OAuth 1 support to Jersey client.
oauth1-server | Module that adds an OAuth 1 support to Jersey server
oauth1-signature | OAuth1 signature module
oauth2-client | Module that adds an OAuth 2 support to Jersey client

Table 2.10. Jersey Examples

Jersey Examples
assemblies | Jersey examples shared assembly types.
bean-validation-webapp | Jersey Bean Validation (JSR-349) example.
bookmark | Jersey Bookmark example.
bookmark-em | Jersey Bookmark example using EntityManager.
bookstore-webapp | Jersey MVC Bookstore example.
cdi-webapp | Jersey CDI example.
clipboard | Jersey clipboard example.
clipboard-programmatic | Jersey programmatic resource API clipboard example.
declarative-linking | Declarative Hyperlinking - Jersey Sample
entity-filtering | Jersey Entity Data Filtering Example.
entity-filtering-security | Jersey Entity Data Filtering Security Example.
entity-filtering-selectable | Jersey Entity Data Filtering Selectable Example.
exception-mapping | Jersey example showing exception mappers in action.
extended-wadl-webapp | Extended WADL example.
flight-management-webapp | Jersey Flight Management Demo Web Application Example
freemarker-webapp | Jersey Freemarker example.
groovy | Groovy Jersey
helloworld | Jersey annotated resource class "Hello world" example.
helloworld-programmatic | Jersey programmatic resource API "Hello world" example.
helloworld-pure-jax-rs | Example using only the standard JAX-RS API's and the lightweight HTTP server bundled in JDK.
helloworld-spring-annotations | Spring 3 Integration Jersey Example
helloworld-spring-webapp | Spring 3 Integration Jersey Example
helloworld-webapp | Jersey annotated resource class "Hello world" example.
http-patch | Jersey example for implementing generic PATCH support via JAX-RS reader interceptor. Taken from Gerard Davison's blog entry: http://kingsfleet.blogspot.co.uk/2014/02/transparent-patch-support-in-jax-rs-20.html
http-trace | Jersey HTTP TRACE support example.
https-clientserver-grizzly | Jersey HTTPS Client/Server example on Grizzly.
https-server-glassfish | Jersey HTTPS server on GlassFish example.
jaxb | Jersey JAXB example.
jaxrs-types-injection | Jersey JAX-RS types injection example.
jersey-ejb | Jersey Web Application (Servlet) examples parent POM.
json-jackson | Jersey JSON with Jackson example.
json-jettison | Jersey JSON with Jettison JAXB example.
json-moxy | Jersey JSON with MOXy example.
json-processing-webapp | Jersey JSON-P (JSR 353) example.
json-with-padding | Jersey JSON with Padding example.
managed-beans-webapp | Jersey Managed Beans Web Application Example.
managed-client | Jersey managed client example.
managed-client-simple-webapp | Jersey Web Application (Servlet) examples parent POM.
managed-client-webapp | Jersey managed client web application example.
monitoring-webapp | Jersey Web Application (Servlet) examples parent POM.
multipart-webapp | Jersey Multipart example.
oauth-client-twitter | Twitter client using OAuth 1 support for Jersey that retrieves Tweets from the home timeline of a registered Twitter account.
oauth2-client-google-webapp | Google API data retrieving example using OAuth2 for authentication and authorization
osgi-helloworld-webapp | Jersey examples
osgi-http-service | OSGi HttpService example
reload | Jersey resource configuration reload example.
server-async | Jersey JAX-RS asynchronous server-side example.
server-async-managed | Jersey JAX-RS asynchronous server-side example with custom Jersey executor providers.
server-async-standalone | Standalone Jersey JAX-RS asynchronous server-side processing example.
server-async-standalone-client | Standalone Jersey JAX-RS asynchronous server-side processing example client.
server-async-standalone-webapp | Standalone Jersey JAX-RS asynchronous server-side processing example web application.
server-sent-events | Jersey Server-Sent Events example.
servlet3-webapp | Jersey Servlet 3 example with missing servlet-class in the web.xml file
shortener-webapp | Jersey Shortener Webapp (MVC + Bean Validation).
simple-console | Jersey Simple Console example
sparklines | Jersey examples
sse-item-store-webapp | Jersey SSE-based item store example.
sse-twitter-aggregator | Jersey SSE Twitter Message Aggregator Example.
system-properties-example | Jersey system properties example.
tone-generator | Jersey examples
webapp-example-parent | Jersey Web Application (Servlet) examples parent POM.
xml-moxy | Jersey XML MOXy example.

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