How to Resolve 'Cannot Find @FormDataParam' in Jersey 2.17

How can I resolve the issue of not being able to find @FormDataParam in Jersey 2.17?

// Example of using @FormDataParam in a Jersey Resource Class
@Path("upload")
public class FileUploadResource {

    @POST
    @Consumes(MediaType.MULTIPART_FORM_DATA)
    public Response uploadFile(@FormDataParam("file") InputStream fileInputStream) {
        // Logic to handle the file upload
        return Response.ok().build();
    }
}

The '@FormDataParam' annotation is part of the Jersey multipart support and is used to handle multipart form data in JAX-RS applications. If you encounter the 'Cannot find @FormDataParam' error in Jersey 2.17, it typically indicates that the necessary dependencies for multipart support are not correctly added to your project.

<dependency>
    <groupId>org.glassfish.jersey.media</groupId>
    <artifactId>jersey-media-multipart</artifactId>
    <version>2.17</version>
</dependency>

Causes

• The Jersey multipart library is not included in your project dependencies.
• Mismatched versions of Jersey components are being used.
• Incorrect import statements in your Java class. Ensure you are importing from the correct Jersey packages.

Solutions

• Add the required Jersey multipart dependency to your project's build configuration (Maven, Gradle, etc.).
• Ensure that the Jersey client and server components match in version and are compatible with your Java environment.
• Check your import statements and ensure you're using javax.ws.rs.ext and org.glassfish.jersey.media.multipart for Jersey 2.x.

Mistake: Missing Jersey multipart dependency in Maven/Gradle.

Solution: Ensure you've added the correct Maven or Gradle dependency for Jersey multipart handling.

Mistake: Using incorrect import statements.

Solution: Always check that your import statements are from the right packages.