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Roadmap to becoming aJava developer in 2025:

Below you can find a chart demonstrating the paths that you can take and the libraries that you would want to learn tobecome a Java developer. I made this chart as a tip for everyone who asks me, "What should I learn next as a Javadeveloper?"

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The purpose of this roadmap is to give you an idea about the landscape. The road map will guide you if you areconfused about what to learn next, rather than encouraging you to pick what is hip and trendy. You should grow someunderstanding of why one tool would be better suited for some cases than the other and remember hip and trendy doesnotalways mean best suited for the job

If you like or are using this project to learn or start your solution, please give it a star. Thanks!

1. Prerequisites

   • Java
   • GradleorMaven
   • SQL

2. General Development Skills

   • Learn GIT, create a few repositories on GitHub, share your code with other people
   • Know HTTP(S) protocol, request methods (GET, POST, PUT, PATCH, DELETE, OPTIONS)
   • Don't be afraid of using Google,Power Searching with Google
   • Read a few books about algorithms and data structures
   • Learn about implementation of a basic Authentication
   • Solid principles, etc

3. CLI Tools

   1. args4j
   2. JCommander
   3. airline

4. Web Frameworks + Routers

   1. Spring
   2. Play Framework
   3. Spark
   4. dropwizard
   5. nanohttpd
   6. Vertx

5. Databases

   1. Relational
      1. SQL Server
      2. PostgreSQL
      3. MariaDB
      4. MySQL
      5. Oracle
   2. Cloud Databases
      • CosmosDB
      • DynamoDB
   3. Search Engines
      • ElasticSearch
      • Opensearch
      • Algolia
   4. NoSQL
      • MongoDB
      • Redis
      • Apache Cassandra
      • Clickhouse
      • InfluxDB
      • CouchDB

6. ORMs

   1. Hibernate
   2. Ebean

7. Caching

   1. Caffeine
   2. EHCache
   3. Cache2k
   4. Distributed Cache
      1. Java-Redis
      2. Java-Memcached
      3. Infinispan

8. Logging

   1. Log Frameworks
      • Zap
      • TinyLog
      • log4j
   2. Log Management System
      • ELK Stack
      • Sentry.io
      • Loggly.com
      • Tracer

9. Real-Time Communication

   1. Socket.IO
   2. atmosphere
   3. webbit

10. API Clients

    1. REST
       • okhttp
       • retrofit
    2. GraphQL

11. Good to Know

    • Beanvalidation
    • bouncycastle
    • gson
    • Apache Shiro
    • JJWT
    • RxJava
    • Quarkus

12. Testing

    1. Unit, Behavior, Integration, Load Testing

       • JUnit
       • JMeter
       • CitrusFramework
       • Gatling
       • Tsung
       • Mockito
       • Assertj

    2. E2E Testing

       • Selenium
       • Wiremock
       • Testcontainers

13. Task Scheduling

    • Aurora
    • elasticjob
    • Sundial
    • cron-utils

14. MicroServices

    1. Message-Broker
       • RabbitMQ
       • Apache Kafka
       • ActiveMQ
       • Apache Pulsar
    2. Message-Bus
       • mbassador
       • rmq
    3. Frameworks
       • Apollo
       • lagom-framework
       • micronaut
       • eureka
       • helidon
       • armeria
    4. RPC
       • Protocol Buffers
       • gRPC-Java
       • thrift

15. Java-Patterns

If you think the roadmap can be improved, please do open a PR with any updates and submit any issues. Also, I willcontinue to improve this, so you might want to star this repository to revisit.

Idea from :Golang Developer Roadmap

The roadmap is built usingDraw.io. Project file can be found atjava-developer-roadmap.xmlfile. To modify it, open draw.io, clickOpen Existing Diagram and choosexml file with project. It will open theroadmap for you. Update it, upload and update the images in readme and create a PR (export as png with 400% zoom andminify that withCompressor.io).

• Open a pull request with improvements
• Discuss ideas in issues
• Spread the word