Let us start our discussions on Jersey with a baby step. If you want to use any Jersey-specific feature in an application, then you will have to add a dependency to the appropriate Jersey libraries. For instance, to use a Jersey configuration class such as org.glassfish.jersey.server.ResourceConfig in your application, you need to depend on the jersey-container-servlet jar. If the consuming application uses Maven for building the source, then specifying a dependency to the jersey-container-servlet jar in the Project Object Model (POM) file may look like the following:

<dependency>
    <groupId>org.glassfish.jersey.containers</groupId>
  
  <!-- module -->
    <artifactId>jersey-container-servlet</artifactId>

  <!—2.17: latest release version -->
    <version>2.17</version>
    
    <!-- container(GlassFish) provides dependency
         for this example -->
    <scope>provided</scope&gt...