Training: Mastering MapStruct - Automating Object Mapping in Java

$3,465

  • 3 days
  • Onsite
  • 8 people max.
Ref: MLJ765
8 people max.
$3,465
In-company rate: from $6,290 for the whole team
On-site and certification exam on quote
3 days
Onsite

Don't let this gap widen

Why this program matters

  • Without mastery of automated object mapping in Java, developers waste 30 % of their time on manual boilerplate code, the source of 40 % of bugs tied to data transformations.

  • Each production incident caused by faulty mapping costs an average of 8 000 € in debugging and delays, with 25 % of deployments impacted according to industry studies.

  • These losses erode team productivity, slow application scalability, and expose the company to major competitive risks that threaten lead dev roles and business targets.

  • Each quarter without automation widens vulnerabilities and makes Java architectures obsolete against competitors.

Célian Lebacle, Learni trainer · Web & mobile expert
Célian Lebacle

Learni trainer · Web & mobile expert

73%productivity gap
×3cost of inaction
Flag of the United StatesBuilt for US teams
Payment by wire transferEnhanced confidentialityPerfect for companies with 50 to 500 employeesScheduling to fit any time zone

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  • Aptar
  • ArcelorMittal
  • Equans
  • EDF
  • Ubisoft
  • Microsoft

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Companies: Aptar, ArcelorMittal, Equans, EDF, Ubisoft and Microsoft.

MapStruct training objectives

  • Understand the functioning and challenges of object mapping in Java applications
  • Discover the architecture and principles of MapStruct
  • Configure MapStruct in different environments (Maven, Gradle)
  • Write complex mappers, manage custom conversions and nested relationships
  • Optimize code maintenance and performance using MapStruct
  • Integrate automated mapping into enterprise applications with Spring
  • Ensure mapping robustness with unit tests and validation

MapStruct curriculum: 3 modules over 3 days

Module 1 : Object Mapping Fundamentals and Introduction to MapStruct

Challenges of object mapping in the Java ecosystem (DTOs, entities, APIs, microservices). Introduction to MapStruct and existing alternatives. Setting up a MapStruct project with Maven and Gradle. First simple mapper: from entities to DTOs.

Module 2 : Customization, Complex Mapping, and Best Practices

Handling type conversions, collection mapping, nested mapping (complex objects). Using customization annotations (expressions, @Mapping, @AfterMapping, @BeforeMapping). Inheritance, partial mapping, default value handling. Generation, structuring, and maintenance of mappers in professional projects.

Module 3 : Advanced Integration and Testing

Integrating MapStruct into Spring architectures, managing bidirectional mapping, microservices use cases. Exception handling, validation, testability (JUnit, Mockito). Performance optimization and common pitfalls. Complete case study, practical workshop, and summary.

How MapStruct skills are assessed

  • Practical exercises based on real-world cases
  • Quiz at the end of each day
  • Creation and testing of an enterprise project integrating MapStruct

How the MapStruct course is taught

  • Interactive sessions with live demonstrations
  • Guided exercises and case studies
  • Source code and practical materials provided to each participant

MapStruct training: access and practical arrangements

The Training: Mastering MapStruct - Automating Object Mapping in Java program is delivered onsite or remote (blended-learning, virtual classroom, remote presence). At Learni, an industry-certified training organization, every program is built to maximize skills acquisition regardless of the chosen format.

The trainer alternates between demonstrative, interrogative and active methods (through hands-on labs and/or scenarios). This pedagogical approach guarantees concrete learning that's immediately applicable at work.

Equipment required

For the smooth delivery of the Training: Mastering MapStruct - Automating Object Mapping in Java program, the following equipment is required:

  • Mac or PC computers, high-speed fiber internet, whiteboard or flipchart, projector or interactive touch screen (for remote sessions)
  • Training environments installed on workstations or accessible online
  • Course materials, hands-on exercises and complementary resources
  • Post-training access to materials and educational resources

For intra-company training on a site outside Learni, the client commits to providing all required teaching materials (computers, internet, etc.) for the smooth delivery of the program in line with the prerequisites in the communicated program.

* contact us for remote delivery feasibility** ratio varies depending on the program

Skills assessment methods

Assessment of skills acquired during the Training: Mastering MapStruct - Automating Object Mapping in Java program is performed through:

  • During training: case studies, hands-on labs and professional scenarios
  • End of training: self-assessment questionnaire and skills evaluation by the trainer
  • After training: completion certificate detailing acquired skills

Program accessibility

Learni is committed to making its programs accessible. All our programs are accessible to people with disabilities. Our teams are available to adapt the pedagogical methods to your specific needs. Please contact us for any adjustment request.

Enrollment terms and lead times

Registration is possible up to 48 business hours before the start of training. All our programs are built for corporate L&D budgets and delivered onsite or remotely.

The Learni story

Founded by engineers and learning experts, Learni's mission is to make high-impact tech training accessible to teams everywhere. We work remotely with organizations across the US and Canada, in your time zone, to help teams upskill fast.

Our method

How Learni guarantees the quality of your MapStruct training

Before, during, after: we frame the brief, introduce the trainer, tailor the content and measure impact. You stay in control from kickoff to wrap-up.

Step 1

Rigorous trainer selection

Each trainer is validated on three criteria: hands-on field expertise, proven pedagogy and alignment with your industry.

  • Triple validation: technical, pedagogical, sectoral.
  • Minimum rating 4.8/5 over the last 12 sessions.
Step 2

You meet the trainer beforehand

30-minute video call between you and the selected trainer to validate the fit, adjust content and clear any final doubts.

  • Live briefing on goals and team context.
  • Veto right — we swap the trainer for free if needed.
Step 3

Content tailored to your context

No recycled slides. The syllabus is reworked from your real cases: tools, constraints, vocabulary, ongoing projects.

  • Hands-on cases drawn from your stack and projects.
  • Program co-written then validated by your team.
Step 4

Continuous quality follow-up

Live evaluations, 30/90/180-day check-ins and a consolidation plan. If the impact misses the mark, we rework it.

  • NPS, knowledge quizzes and skills self-assessment.
  • Satisfaction guarantee: fully satisfied or free rework.

A simple promise: you don't pay to discover the trainer on day one. Everything is validated upfront, by you.

A child walking to school with a backpack
Our social commitment

A school kit donated to a child for every training booked

To fight inequalities in access to education, Learni donates a complete school kit to a child in need for every training booked. You build your skills, a child heads back to school.

  • Backpack, notebooks and essential supplies
  • Distributed through our partner charities
  • Included, at no extra cost to you
Enroll and offer a kit
FAQ

MapStruct: frequently asked questions

What can participants do after Training: Mastering MapStruct training?+
They can understand the functioning and challenges of object mapping in Java applications, discover the architecture and principles of MapStruct and configure MapStruct in different environments (Maven, Gradle). Those are the stated objectives of the Training: Mastering MapStruct program at Advanced level, checked by the end-of-session assessment.
What does the Training: Mastering MapStruct program cover, day by day?+
Day 1: Object Mapping Fundamentals and Introduction to MapStruct. Day 2: Customization, Complex Mapping, and Best Practices. Day 3: Advanced Integration and Testing. The Training: Mastering MapStruct program runs over 3 days, delivered on site.
How is Training: Mastering MapStruct training assessed?+
Assessment relies on practical exercises based on real-world cases, quiz at the end of each day and creation and testing of an enterprise project integrating MapStruct. Learni issues a completion certificate together with the individual assessment report at the end of the Training: Mastering MapStruct program, which an L&D team can file as evidence.
How much does Training: Mastering MapStruct training cost per participant?+
Training: Mastering MapStruct training costs $3,465 per participant. For an in-company team, the flat rate starts at $6,290 for the whole group, up to 8 people. The detailed quote, sent within one business day, adjusts the amount to the format and how far the syllabus is tailored to your team.
How long does Training: Mastering MapStruct training take?+
3 days, available live online (US time zones) or on-site at your offices. Half-day tracks spread over several weeks are possible so the team stays operational.
Who pays for Training: Mastering MapStruct training?+
Most US teams pay directly through their company L&D or training budget. Learni invoices in US dollars and accepts bank transfer (ACH/wire) or card, with volume pricing for teams. A purchase order is welcome.
What do participants need to know before Training: Mastering MapStruct training?+
Strong proficiency in the Java language, experience with Spring or Jakarta EE frameworks recommended.
Is a certificate issued after Training: Mastering MapStruct training?+
Yes. A Learni completion certificate is issued, along with the individual evaluation report. Learni is a certified training provider and prepares for third-party certifications, but does not award them itself.
Does Learni provide the equipment for Training: Mastering MapStruct training?+
No. A computer and a stable internet connection are required for each participant. Learni provides the learning platform, the trainer and all course materials.
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