Java Weekly, Issue 192

Azure Container Apps is a fully managed serverless container service that enables you to build and deploy modern, cloud-native Java applications and microservices at scale. It offers a simplified developer experience while providing the flexibility and portability of containers.

Of course, Azure Container Apps has really solid support for our ecosystem, from a number of build options, managed Java components, native metrics, dynamic logger, and quite a bit more.

To learn more about Java features on Azure Container Apps, visit the documentation page.

You can also ask questions and leave feedback on the Azure Container Apps GitHub page.

Of course, Azure Container Apps has really solid support for our ecosystem, from a number of build options, managed Java components, native metrics, dynamic logger, and quite a bit more.

To learn more about Java features on Azure Container Apps, you can get started over on the documentation page.

And, you can also ask questions and leave feedback on the Azure Container Apps GitHub page.

Modern software architecture is often broken. Slow delivery leads to missed opportunities, innovation is stalled due to architectural complexities, and engineering resources are exceedingly expensive.

Orkes is the leading workflow orchestration platform built to enable teams to transform the way they develop, connect, and deploy applications, microservices, AI agents, and more.

With Orkes Conductor managed through Orkes Cloud, developers can focus on building mission critical applications without worrying about infrastructure maintenance to meet goals and, simply put, taking new products live faster and reducing total cost of ownership.

Try a 14-Day Free Trial of Orkes Conductor today.

Orkes is the leading workflow orchestration platform built to enable teams to transform the way they develop, connect, and deploy applications, microservices, AI agents, and more.

Try a 14-Day Free Trial of Orkes Conductor today.

Traditional keyword-based search methods rely on exact word matches, often leading to irrelevant results depending on the user's phrasing.

By comparison, using a vector store allows us to represent the data as vector embeddings, based on meaningful relationships. We can then compare the meaning of the user’s query to the stored content, and retrieve more relevant, context-aware results.

Explore how to build an intelligent chatbot using MongoDB Atlas, Langchain4j and Spring Boot:

>> Building an AI Chatbot in Java With Langchain4j and MongoDB Atlas

Accessibility testing is a crucial aspect to ensure that your application is usable for everyone and meets accessibility standards that are required in many countries.

By automating these tests, teams can quickly detect issues related to screen reader compatibility, keyboard navigation, color contrast, and other aspects that could pose a barrier to using the software effectively for people with disabilities.

Learn how to automate accessibility testing with Selenium and the LambdaTest cloud-based testing platform that lets developers and testers perform accessibility automation on over 3000+ real environments:

Automated Accessibility Testing With Selenium

Lots of interesting writeups on Java 9 this week.

Here we go…

1. Spring and Java

>> How To Map The Date And Time API with JPA 2.2 [thoughts-on-java.org]

Support for the new Date/Time API for Java finally comes along with the JPA 2.2.

>> @Contended @since 9 [javaspecialists.eu]

Java 9 will be trying to encapsulate internal system classes that we should not be using (but we often are).

The @Contended annotation is one of those tools – let’s see how we can access it in Java 9.

>> You’re not a compiler! [frankel.ch]

Programming quizzes are cool, but obviously, they do test a very thin slice of developer’s skills.

All in all, not that useful.

>> Planning Your Java 9 Update [codefx.org]

Java 9 is coming soon (hopefully) and brings a host of new APIs and language features, modules among them.

Modularizing an application should be well thought and carefully planned.

>> Java API for RESTful Web Services 2.1 Released [infoq.com]

JAX-RS 2.1 finally got released and has a bunch of cool new features.

>> Code Smells: Mutation [blog.jetbrains.com]

Simply put – it’s a bad idea to mutate something you’re directly iterating over 🙂

>> JUnit 5 Tutorial: Running Unit Tests With Gradle [petrikainulainen.net]

Running JUnit 5 tests might be slightly tricky in certain scenarios – it’s important to remember that JUnit 5 is split into a few different artifacts you can leverage separately.

>> Cost Reduction Strategies on Java Cloud Hosting Services [infoq.com]

Cloud resources can be expensive, especially when you’re forced to pay for resources that you don’t need.

Here are a few techniques to make sure you’re paying only for what you actually use.

>> Idiomatic Peeking with Java Stream API [4comprehension.com]

Multiple controversies are surrounding the peek() method from the Java Stream API – here you can see what those are and how to use the method properly.

Also worth reading:

>> Dynamically adding an interceptor to a built-in CDI bean [arjan-tijms.omnifaces.org]
>> JUnit 5 Tutorial: Running Unit Tests With Maven [petrikainulainen.net]
>> Hibernate Tips: How to delete child entities from a many-to-one association [thoughts-on-java.org]
>> The best way to map a projection query to a DTO (Data Transfer Object) with JPA and Hibernate [vladmihalcea.com]
>> Localization of Spring Security Error Messages in Spring Boot [codecentric.de]
>> First Vavr Tutorial [blog.vavr.io]

Webinars and presentations:

>> Spring Cloud Data Flow Tips & Tricks: Interacting with the Shell [spring.io]
>> What Does Speed Mean in Software Product Delivery? [infoq.com]

Time to upgrade:

>> Bugfix releases for Hibernate Search 5.5, 5.6 and 5.7 [in.relation.to]
>> jOOQ 3.10 Supports JPA AttributeConverter [jooq.org]
>> IntelliJ IDEA 2017.2: Smarter, Neater, and Faster [infoq.com]
>> IntelliJ IDEA 2017.2: Spring Boot Improvements [jetbrains.com]
>> Spring Cloud Edgware M1 Is Now Available [spring.io]

2. Technical

>> Stability in a Chaotic World: How Postgres Makes Transactions Atomic [brandur.org]

A super deep-dive into the internal of Postgres.

Also worth reading:

>> Selecting an Event Architecture [infoq.com]

3. Musings

>> Scale Your Freelancing: Hiring Others [daedtech.com]

Well, you should probably start by finding a good lawyer and an accountant – that holds true for pretty much every country 🙂

Also worth reading:

>> Reinforcement Learning Overview [horicky.blogspot.com]
>> How To Handle Business Rules in Domain Driven Design [blog.sapiensworks.com]
>> When do you cut your Losses? [offbeattesting.com]
>> The Web in 2050 [jacquesmattheij.com]
>> Just Following Orders [blog.cleancoder.com]
>> Spring Cleaning Your Code Review [daedtech.com]

4. Comics

And my favorite Dilberts of the week:

>> Small Talk [dilbert.com]

>> Complaining pill [dilbert.com]

>> Fool-proof plan for success [dilbert.com]

5. Pick of the Week

The last day (Friday) of the REST With Spring 2.0 launch:

>> The new Spring 5 modules coming in REST With Spring

Of course, Azure Container Apps has really solid support for our ecosystem, from a number of build options, managed Java components, native metrics, dynamic logger, and quite a bit more.

To learn more about Java features on Azure Container Apps, visit the documentation page.

You can also ask questions and leave feedback on the Azure Container Apps GitHub page.

Of course, Azure Container Apps has really solid support for our ecosystem, from a number of build options, managed Java components, native metrics, dynamic logger, and quite a bit more.

To learn more about Java features on Azure Container Apps, visit the documentation page.

You can also ask questions and leave feedback on the Azure Container Apps GitHub page.

Orkes is the leading workflow orchestration platform built to enable teams to transform the way they develop, connect, and deploy applications, microservices, AI agents, and more.

Try a 14-Day Free Trial of Orkes Conductor today.

Orkes is the leading workflow orchestration platform built to enable teams to transform the way they develop, connect, and deploy applications, microservices, AI agents, and more.

Try a 14-Day Free Trial of Orkes Conductor today.

Traditional keyword-based search methods rely on exact word matches, often leading to irrelevant results depending on the user's phrasing.

Explore how to build an intelligent chatbot using MongoDB Atlas, Langchain4j and Spring Boot:

>> Building an AI Chatbot in Java With Langchain4j and MongoDB Atlas

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1. Spring and Java

>> How To Map The Date And Time API with JPA 2.2 [thoughts-on-java.org]

>> @Contended @since 9 [javaspecialists.eu]

>> You’re not a compiler! [frankel.ch]

>> Planning Your Java 9 Update [codefx.org]

>> Java API for RESTful Web Services 2.1 Released [infoq.com]

>> Code Smells: Mutation [blog.jetbrains.com]

>> JUnit 5 Tutorial: Running Unit Tests With Gradle [petrikainulainen.net]

>> Cost Reduction Strategies on Java Cloud Hosting Services [infoq.com]

>> Idiomatic Peeking with Java Stream API [4comprehension.com]

Also worth reading:

>> Dynamically adding an interceptor to a built-in CDI bean [arjan-tijms.omnifaces.org]

>> JUnit 5 Tutorial: Running Unit Tests With Maven [petrikainulainen.net]

>> Hibernate Tips: How to delete child entities from a many-to-one association [thoughts-on-java.org]

>> The best way to map a projection query to a DTO (Data Transfer Object) with JPA and Hibernate [vladmihalcea.com]

>> Localization of Spring Security Error Messages in Spring Boot [codecentric.de]

>> First Vavr Tutorial [blog.vavr.io]

>> Spring Cloud Data Flow Tips & Tricks: Interacting with the Shell [spring.io]

>> What Does Speed Mean in Software Product Delivery? [infoq.com]

>> Bugfix releases for Hibernate Search 5.5, 5.6 and 5.7 [in.relation.to]

>> jOOQ 3.10 Supports JPA AttributeConverter [jooq.org]

>> IntelliJ IDEA 2017.2: Smarter, Neater, and Faster [infoq.com]

>> IntelliJ IDEA 2017.2: Spring Boot Improvements [jetbrains.com]

>> Spring Cloud Edgware M1 Is Now Available [spring.io]

2. Technical

>> Stability in a Chaotic World: How Postgres Makes Transactions Atomic [brandur.org]

>> Selecting an Event Architecture [infoq.com]

3. Musings

>> Scale Your Freelancing: Hiring Others [daedtech.com]

>> Reinforcement Learning Overview [horicky.blogspot.com]

>> How To Handle Business Rules in Domain Driven Design [blog.sapiensworks.com]

>> When do you cut your Losses? [offbeattesting.com]

>> The Web in 2050 [jacquesmattheij.com]

>> Just Following Orders [blog.cleancoder.com]

>> Spring Cleaning Your Code Review [daedtech.com]

4. Comics

>> Small Talk [dilbert.com]

>> Complaining pill [dilbert.com]

>> Fool-proof plan for success [dilbert.com]

5. Pick of the Week

>> The new Spring 5 modules coming in REST With Spring