Java Programming Language

For Beginners

1. Tutorial https://docs.oracle.com/javase/tutorial/

2. Video Tutorial . https://www.udemy.com/java-tutorial/

3. Even more tutorials https://www.javacodegeeks.com/2015/01/get-your-advanced-java-programming-degree-with-these-tutorials-and-courses.html

4. Project Ideas: http://www.dreamincode.net/forums/topic/78802-martyr2s-mega-project-ideas-list/

5. Introduction to Computer Science https://www.edx.org/course/introduction-computer-science-harvardx-cs50x

6. https://www.javacodegeeks.com/2015/06/java-programming-tips-best-practices-beginners.html

Links

1. Tutorials . http://www.baeldung.com/

2. Spring Boot https://spring.io/guides/gs/spring-boot/

3. Gradle https://www.tutorialspoint.com/gradle/

4. gRPC https://github.com/grpc/grpc-java/tree/master/examples/src/main/java/io/grpc/examples/helloworld

5. Why field injection is evil http://olivergierke.de/2013/11/why-field-injection-is-evil/

6. FileInputStream / FileOutputStream Considered Harmful https://www.cloudbees.com/blog/fileinputstream-fileoutputstream-considered-harmful

7. https://github.com/in28minutes/java-best-practices

8. https://github.com/cxxr/better-java

9. https://github.com/akullpp/awesome-java

10. http://www.javapractices.com/home/HomeAction.do

11. so you want to throw an Exception http://normanmaurer.me/blog/2013/11/09/The-hidden-performance-costs-of-instantiating-Throwables/

12. https://github.com/Vedenin/useful-java-links

13. https://martinfowler.com/bliki/MonolithFirst.html

14. https://about.sourcegraph.com/go/grpc-in-production-alan-shreve/

15. Spring 5 http://www.baeldung.com/spring-5-functional-web

16. http://www.baeldung.com/swagger-2-documentation-for-spring-rest-api

17. Spring Cloud for Microservices Compared to Kubernetes https://developers.redhat.com/blog/2016/12/09/spring-cloud-for-microservices-compared-to-kubernetes/

Golang for Java Developers

1. https://github.com/fstab/go-programming-for-java-developers
2. https://steveperkins.com/go-for-java-programmers/
3. https://yourbasic.org/golang/go-java-tutorial/

Testing

• http://spockframework.org/
• http://spockframework.org/spock/docs/1.1/index.html
• http://www.baeldung.com/groovy-spock
• https://thejavatar.com/testing-with-spock/
• http://farenda.com/spock-framework-tutorial/
• https://github.com/spockframework/spock-example

IntelliJ IDEA

1. https://www.jetbrains.com/toolbox/app/
2. https://plugins.jetbrains.com/plugin/9696-java-stream-debugger
3. https://plugins.jetbrains.com/plugin/9354-kubernetes-and-openshift-resource-support
4. https://plugins.jetbrains.com/plugin/4455-key-promoter
5. https://plugins.jetbrains.com/plugin/8277-protobuf-support
6. https://plugins.jetbrains.com/plugin/6317-lombok-plugin
7. https://plugins.jetbrains.com/plugin/7495--ignore
8. https://plugins.jetbrains.com/plugin/4230-bashsupport
9. https://plugins.jetbrains.com/top-downloads/idea
10. https://www.voxxed.com/blog/presentation/presentation-42-intellij-idea-tips-tricks-45-minutes
11. https://www.jetbrains.com/help/idea/sharing-your-ide-settings.html

Books

1. Core Java, Volume I and II; Horstmann

2. OCA/OCP Java SE 7 Programmer I & II Study Guide; Sierra & Bates

3. Effective Java; Bloch

4. Java Concurrency in Practice; Goetz

5. Spring Boot in Action; Walls

6. The Software Craftsman: Professionalism, Pragmatism, Pride; Mancuso

7. Java Performance - The Definitive Guide - Scott Oaks

8. Design Patterns; Gang of Four

9. Head First, Design Patterns; Sierra, Robson, Bates & Freeman

10. Clean Code; Martin

11. The Pragmatic Programmer; Hunt

12. Algorithms, 4th Edition by Robert Sedgewick and Kevin Wayne

13. Introduction to Algorithms, Cormen

Package scope, hexagonal architecture, DDD, CQRS

1. (PL) Keep IT clean: mid-sized building blocks and hexagonal architecture

   https://www.youtube.com/watch?v=ma15iBQpmHU
2. (ENG) Keep IT clean: mid-sized building blocks and hexagonal architecture https://www.youtube.com/watch?v=KrLFs6f2bOA
3. Slides: https://jakubn.gitlab.io/keepitclean/#1
4. Sample code: https://github.com/jakubnabrdalik/hentai and https://github.com/jakubnabrdalik/hentai-cloudy-rental
5. Hexagonal http://alistair.cockburn.us/Hexagonal+architecture
6. Anemic vs Rich Model https://dzone.com/articles/anaemic-vs-rich-domain-objects-finding-the-balance
7. CQRS https://martinfowler.com/bliki/CQRS.html

Java inside Docker

With Java 11 should be ok now. "The Java JVM until now doesn’t didn’t provide support to understand that it‘s was running inside a container and that it has some resources like those that are memory and CPU restricted. Because of that, you can’t couldn’t let the JVM ergonomics take the decision by itself regarding the maximum heap size."

• https://developers.redhat.com/blog/2017/03/14/java-inside-docker/
• https://engineering.linkedin.com/blog/2016/11/application-pauses-when-running-jvm-inside-linux-control-groups
• https://jaxenter.com/nobody-puts-java-container-139373.html
• Why you’re going to FAIL running Java on docker https://www.youtube.com/watch?v=UrAE0hD1_pM
• https://bugs.openjdk.java.net/browse/JDK-8146115
• https://stackoverflow.com/questions/53451103/java-using-much-more-memory-than-heap-size-or-size-correctly-docker-memory-limi/53624438#53624438