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Develop Web Services and Microservices with Java (Advanced)

The Oracle Develop Web Services and Microservices with Java course equips Java developers, designers, and architects with practical skills to build scalable, secure web services using JAX-WS, JAX-RS, JAXB, and JSON-P/B, solving the industry challenge of fragmented service integration. With over 500,000 professionals certified in Oracle Java technologies, this training meets growing demand for cloud-native development expertise.

This course prepares learners for the Oracle Certified Professional, Java EE 7 Application Developer (1Z0-900) exam. Koenig Solutions provides official vendor-authorized courseware and 30-day lab access, ensuring hands-on mastery. Graduates gain a competitive edge, advancing into high-demand microservices and enterprise application roles.

24 Hours (3 Days)
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Course Overview

The Develop Web Services and Microservices with Java course by Oracle is designed for Java developers, designers, and architects seeking to build scalable, service-oriented applications. This comprehensive training equips learners with the skills to design and implement both SOAP and RESTful web services, as well as modern microservices architectures using Java EE and Java MicroProfile. While no specific certification exam is directly tied to this course, it supports preparation for advanced Java and cloud-related Oracle certifications. With over 97% of Fortune 500 companies using Java in their technology stack, mastering web services and microservices is critical for professionals aiming to work in enterprise environments where distributed systems are standard.

Students engage with key Oracle technologies including JAX-WS, JAX-RS, JAXB, JSON-P, JSON-B, and Helidon MicroProfile. The course includes hands-on labs conducted in Oracle’s cloud-based lab environment, OUConnect, where students deploy applications using WebLogic Server and Helidon. Participants gain practical experience by building a complete microservices-based application that integrates RESTful services, handles XML and JSON data, and implements service security policies. A real-world scenario involves deploying a scalable service architecture on Oracle Cloud Infrastructure, simulating production-level development workflows and containerized deployment practices used in enterprise DevOps pipelines.

By completing the Develop Web Services and Microservices with Java course, professionals enhance their readiness for Oracle’s professional-level Java and cloud certifications, recognized across the IT industry for their rigor and relevance. Certified Java developers earn median salaries of $110,000 annually, with microservices expertise commanding premium differentials. Koenig Solutions supports this learning path with Guaranteed-to-Run scheduling, 1-on-1 instructor-led training, and official Oracle courseware, ensuring hands-on mastery. Graduates are well-positioned for roles such as Java Microservices Developer, Cloud Application Architect, or Backend Engineer, driving innovation in cloud-native application development.

What You'll Learn

Implement RESTful web services with the JAX-RS API in Oracle's Develop Web Services and Microservices with Java course, enabling you to build scalable APIs.
Create SOAP-based web services using JAX-WS in Oracle's Develop Web Services and Microservices with Java, facilitating seamless enterprise integrations.
Secure Java EE applications following Oracle's security standards in the Develop Web Services and Microservices with Java course, protecting your applications from threats.
Deploy Java EE applications on Oracle Cloud with best practices from the Develop Web Services and Microservices with Java training, ensuring reliable cloud hosting.
Manage WebSocket endpoints using the JSR 356 API within Oracle's Develop Web Services and Microservices with Java, enabling real-time communication.
Consume REST services efficiently within Oracle Java clients by applying techniques learned in the Develop Web Services and Microservices with Java course, improving application interoperability.

Prerequisites

Recommended knowledge before taking this course
  • Required: Solid understanding of Java SE 11 or 17 (LTS) and core object-oriented programming principles essential for mastering the 'Develop Web Services and Microservices with Java' course by Oracle
  • Required: Understanding of RESTful architecture, JSON, and XML data formats, which are fundamental to the microservices covered in the 'Develop Web Services and Microservices with Java' course by Oracle
  • Required: Familiarity with build tools such as Maven or Gradle, which are industry standards for Oracle Java microservices development
  • Recommended: Experience creating HTML, CSS, and JavaScript web pages to support the development of scalable web applications
  • Recommended: Familiarity with using an Integrated Development Environment (IDE) for Java development to accelerate learning and project implementation
  • Recommended: Basic knowledge of database concepts and SQL syntax to support effective integration of web services and microservices
  • Required: Previous experience with Java annotations and servlets to provide a strong foundation for developing robust web services with Oracle's Java platform
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Certification Exam

Everything you need to know about the Develop Web Services and Microservices with Java (Advanced) certification exam

Exam Details
Exam Name
Format
Multiple choice, labs & case studies
Questions
Duration
Passing Score
Validity
Retake Policy
Candidates must wait 14 days before retaking an Oracle certification exam if they do not pass on the first attempt.
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Course Curriculum

Structured learning with hands-on labs and real-world scenarios

1
Day 1– Master Web Services and XML with Oracle
Core Web Services concepts Master SOAP and REST paradigms Analyze real-world service use-cases Process XML via JAXB API Map Java objects to XML Generate XML from Java classes Parse XML documents using JAXB Validate XML structures with JAXB
2
Day 2– Develop SOAP Services with Oracle Java
Build SOAP services using JAX-WS Define secure service endpoints Expose methods as web services Generate standard WSDL contracts Invoke enterprise SOAP services Manage complex SOAP messages Debug JAX-WS application logic Test SOAP service interoperability
3
Day 3– Build Microservices with Oracle Java
Process JSON using JSON-P/JSON-B Develop REST services via JAX-RS Define efficient RESTful endpoints Map HTTP methods to operations Produce and consume JSON data Implement robust exception handling Secure Web Services with policies Architect scalable Microservices systems

What's Included in Your Training

Every enrollment comes packed with resources to maximise your learning and exam success

Career Outcomes

78%

of Develop Web Services and Microservices with Java (Advanced) certified professionals report career advancement within 6 months

Salary Impact

+22%

Average salary increase reported after obtaining the Develop Web Services and Microservices with Java (Advanced) certification

Typical Salary Range (Global)
Entry$90,000–$115,000
Mid$115,000–$145,000
Senior$145,000–$180,000

*Source: Glassdoor / LinkedIn 2025

Job Roles

6
  • Java EE Application Developer
  • Microservices Developer
  • Enterprise Java Architect
  • Cloud Integration Engineer
  • SOA Developer
  • API Platform Engineer

Companies Hiring

5,000+
Oracle Accenture Deloitte Infosys Wipro TCS JP Morgan Chase IBM Capgemini Cognizant

and 5,000+ organizations worldwide seeking Develop Web Services and Microservices with Java (Advanced) certified professionals

Real Transformations

Course Student Reviews

Real results from IT professionals who trained with Koenig — rated 4.9/5 from 18,400+ verified reviews.

18,400+
Verified Reviews
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Average Rating
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1M+
Professionals Trained
  • ★★★★★

    “Passed AZ-104 on first attempt. The MCT knew the exact exam patterns and the labs were exactly what Microsoft tests. Worth every penny.”

    Rahul M.

    Rahul M.

    Azure Administrator

    AZ-104 Certified ✓ Verified
  • ★★★★★

    “I trained 15 of my team members for SC-200. Koenig's on-site delivery was seamless and all 15 passed within 3 months.”

    Sarah K.

    Sarah K.

    CISO, Financial Services

    Enterprise Client ✓ Verified
  • ★★★★★

    “The 1-on-1 format was a game changer. My trainer adjusted the pace to my schedule and I cleared PL-300 while working full-time.”

    Ahmed R.

    Ahmed R.

    Business Intelligence Lead

    PL-300 Certified ✓ Verified
  • ★★★★★

    “From AZ-900 to AZ-305 in 6 months. Koenig's structured roadmap and MCT mentoring made the expert level achievable.”

    Priya S.

    Priya S.

    Cloud Solutions Architect

    AZ-305 Expert ✓ Verified
  • ★★★★★

    “As an L&D head I've used 5 training vendors. Koenig's MCT quality, MOC materials, and ESI compliance is in a different league.”

    James T.

    James T.

    Head of L&D, UK Enterprise

    100+ Learners Trained ✓ Verified
  • ★★★★★

    “SC-900 and SC-300 back to back — both cleared first try. The security curriculum at Koenig is incredibly thorough and up to date.”

    Aisha N.

    Aisha N.

    Security Analyst

    SC-300 Certified ✓ Verified
  • ★★★★★

    “AI-102 was daunting but the trainer broke it down perfectly. Real Azure OpenAI labs made the difference. Highly recommend.”

    David L.

    David L.

    AI Engineer

    AI-102 Certified ✓ Verified
  • ★★★★★

    “DP-600 Fabric certification done in 3 weeks of part-time study. The customised schedule around my timezone was a lifesaver.”

    Mei W.

    Mei W.

    Data Platform Engineer

    DP-600 Certified ✓ Verified
  • ★★★★★

    “Our whole DevOps team got AZ-400 certified through Koenig's corporate training. Smooth logistics and top-tier MCTs throughout.”

    Carlos R.

    Carlos R.

    Engineering Manager

    AZ-400 Team Training ✓ Verified
  • ★★★★★

    “Passed AZ-104 on first attempt. The MCT knew the exact exam patterns and the labs were exactly what Microsoft tests. Worth every penny.”

    Rahul M.

    Rahul M.

    Azure Administrator

    AZ-104 Certified ✓ Verified
  • ★★★★★

    “I trained 15 of my team members for SC-200. Koenig's on-site delivery was seamless and all 15 passed within 3 months.”

    Sarah K.

    Sarah K.

    CISO, Financial Services

    Enterprise Client ✓ Verified
  • ★★★★★

    “The 1-on-1 format was a game changer. My trainer adjusted the pace to my schedule and I cleared PL-300 while working full-time.”

    Ahmed R.

    Ahmed R.

    Business Intelligence Lead

    PL-300 Certified ✓ Verified
  • ★★★★★

    “From AZ-900 to AZ-305 in 6 months. Koenig's structured roadmap and MCT mentoring made the expert level achievable.”

    Priya S.

    Priya S.

    Cloud Solutions Architect

    AZ-305 Expert ✓ Verified
  • ★★★★★

    “As an L&D head I've used 5 training vendors. Koenig's MCT quality, MOC materials, and ESI compliance is in a different league.”

    James T.

    James T.

    Head of L&D, UK Enterprise

    100+ Learners Trained ✓ Verified
  • ★★★★★

    “SC-900 and SC-300 back to back — both cleared first try. The security curriculum at Koenig is incredibly thorough and up to date.”

    Aisha N.

    Aisha N.

    Security Analyst

    SC-300 Certified ✓ Verified
  • ★★★★★

    “AI-102 was daunting but the trainer broke it down perfectly. Real Azure OpenAI labs made the difference. Highly recommend.”

    David L.

    David L.

    AI Engineer

    AI-102 Certified ✓ Verified
  • ★★★★★

    “DP-600 Fabric certification done in 3 weeks of part-time study. The customised schedule around my timezone was a lifesaver.”

    Mei W.

    Mei W.

    Data Platform Engineer

    DP-600 Certified ✓ Verified
  • ★★★★★

    “Our whole DevOps team got AZ-400 certified through Koenig's corporate training. Smooth logistics and top-tier MCTs throughout.”

    Carlos R.

    Carlos R.

    Engineering Manager

    AZ-400 Team Training ✓ Verified
  • ★★★★★

    “Passed AZ-104 on first attempt. The MCT knew the exact exam patterns and the labs were exactly what Microsoft tests. Worth every penny.”

    Rahul M.

    Rahul M.

    Azure Administrator

    AZ-104 Certified ✓ Verified
  • ★★★★★

    “I trained 15 of my team members for SC-200. Koenig's on-site delivery was seamless and all 15 passed within 3 months.”

    Sarah K.

    Sarah K.

    CISO, Financial Services

    Enterprise Client ✓ Verified
  • ★★★★★

    “The 1-on-1 format was a game changer. My trainer adjusted the pace to my schedule and I cleared PL-300 while working full-time.”

    Ahmed R.

    Ahmed R.

    Business Intelligence Lead

    PL-300 Certified ✓ Verified
  • ★★★★★

    “Passed AZ-104 on first attempt. The MCT knew the exact exam patterns and the labs were exactly what Microsoft tests. Worth every penny.”

    Rahul M.

    Rahul M.

    Azure Administrator

    AZ-104 Certified ✓ Verified
  • ★★★★★

    “I trained 15 of my team members for SC-200. Koenig's on-site delivery was seamless and all 15 passed within 3 months.”

    Sarah K.

    Sarah K.

    CISO, Financial Services

    Enterprise Client ✓ Verified
  • ★★★★★

    “The 1-on-1 format was a game changer. My trainer adjusted the pace to my schedule and I cleared PL-300 while working full-time.”

    Ahmed R.

    Ahmed R.

    Business Intelligence Lead

    PL-300 Certified ✓ Verified
  • ★★★★★

    “From AZ-900 to AZ-305 in 6 months. Koenig's structured roadmap and MCT mentoring made the expert level achievable.”

    Priya S.

    Priya S.

    Cloud Solutions Architect

    AZ-305 Expert ✓ Verified
  • ★★★★★

    “As an L&D head I've used 5 training vendors. Koenig's MCT quality, MOC materials, and ESI compliance is in a different league.”

    James T.

    James T.

    Head of L&D, UK Enterprise

    100+ Learners Trained ✓ Verified
  • ★★★★★

    “SC-900 and SC-300 back to back — both cleared first try. The security curriculum at Koenig is incredibly thorough and up to date.”

    Aisha N.

    Aisha N.

    Security Analyst

    SC-300 Certified ✓ Verified
  • ★★★★★

    “From AZ-900 to AZ-305 in 6 months. Koenig's structured roadmap and MCT mentoring made the expert level achievable.”

    Priya S.

    Priya S.

    Cloud Solutions Architect

    AZ-305 Expert ✓ Verified
  • ★★★★★

    “As an L&D head I've used 5 training vendors. Koenig's MCT quality, MOC materials, and ESI compliance is in a different league.”

    James T.

    James T.

    Head of L&D, UK Enterprise

    100+ Learners Trained ✓ Verified
  • ★★★★★

    “SC-900 and SC-300 back to back — both cleared first try. The security curriculum at Koenig is incredibly thorough and up to date.”

    Aisha N.

    Aisha N.

    Security Analyst

    SC-300 Certified ✓ Verified
  • ★★★★★

    “AI-102 was daunting but the trainer broke it down perfectly. Real Azure OpenAI labs made the difference. Highly recommend.”

    David L.

    David L.

    AI Engineer

    AI-102 Certified ✓ Verified
  • ★★★★★

    “DP-600 Fabric certification done in 3 weeks of part-time study. The customised schedule around my timezone was a lifesaver.”

    Mei W.

    Mei W.

    Data Platform Engineer

    DP-600 Certified ✓ Verified
  • ★★★★★

    “Our whole DevOps team got AZ-400 certified through Koenig's corporate training. Smooth logistics and top-tier MCTs throughout.”

    Carlos R.

    Carlos R.

    Engineering Manager

    AZ-400 Team Training ✓ Verified
  • ★★★★★

    “AI-102 was daunting but the trainer broke it down perfectly. Real Azure OpenAI labs made the difference. Highly recommend.”

    David L.

    David L.

    AI Engineer

    AI-102 Certified ✓ Verified
  • ★★★★★

    “DP-600 Fabric certification done in 3 weeks of part-time study. The customised schedule around my timezone was a lifesaver.”

    Mei W.

    Mei W.

    Data Platform Engineer

    DP-600 Certified ✓ Verified
  • ★★★★★

    “Our whole DevOps team got AZ-400 certified through Koenig's corporate training. Smooth logistics and top-tier MCTs throughout.”

    Carlos R.

    Carlos R.

    Engineering Manager

    AZ-400 Team Training ✓ Verified
100%

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