Api integration with a Java Application, no source for the Java app. -- 2

I am looking for a freelancer who can integrate a RESTful API with a Java application. The Java application's source code is not available.

Specific API: RESTful API or any other common API solution.

Attached is the information that needs to be included in API and what are the Java app functions that needs to be accessed.

Expected Functionality: The main objective of the API integration is to enable document processing within the Java application.

Skills and Experience:
- Strong experience in Java application development
- Proficiency in API integration, specifically with RESTful APIs
- Familiarity with document processing and manipulation
- Good problem-solving skills and ability to work with limited information
- Attention to detail to ensure seamless integration between the API and the Java application