#what is quarkus java

[vatt-world]

h

Technical Skills (Java, Spring, Python)

Q1: Can you walk us through a recent project where you built a scalable application using Java and Spring Boot? A: Absolutely. In my previous role, I led the development of a microservices-based system using Java with Spring Boot and Spring Cloud. The app handled real-time financial transactions and was deployed on AWS ECS. I focused on building stateless services, applied best practices like API versioning, and used Eureka for service discovery. The result was a 40% improvement in performance and easier scalability under load.

Q2: What has been your experience with Python in data processing? A: I’ve used Python for ETL pipelines, specifically for ingesting large volumes of compliance data into cloud storage. I utilized Pandas and NumPy for processing, and scheduled tasks with Apache Airflow. The flexibility of Python was key in automating data validation and transformation before feeding it into analytics dashboards.

Cloud & DevOps

Q3: Describe your experience deploying applications on AWS or Azure. A: Most of my cloud experience has been with AWS. I’ve deployed containerized Java applications to AWS ECS and used RDS for relational storage. I also integrated S3 for static content and Lambda for lightweight compute tasks. In one project, I implemented CI/CD pipelines with Jenkins and CodePipeline to automate deployments and rollbacks.

Q4: How have you used Docker or Kubernetes in past projects? A: I've containerized all backend services using Docker and deployed them on Kubernetes clusters (EKS). I wrote Helm charts for managing deployments and set up autoscaling rules. This improved uptime and made releases smoother, especially during traffic spikes.

Collaboration & Agile Practices

Q5: How do you typically work with product owners and cross-functional teams? A: I follow Agile practices, attending sprint planning and daily stand-ups. I work closely with product owners to break down features into stories, clarify acceptance criteria, and provide early feedback. My goal is to ensure technical feasibility while keeping business impact in focus.

Q6: Have you had to define technical design or architecture? A: Yes, I’ve been responsible for defining the technical design for multiple features. For instance, I designed an event-driven architecture for a compliance alerting system using Kafka, Java, and Spring Cloud Streams. I created UML diagrams and API contracts to guide other developers.

Testing & Quality

Q7: What’s your approach to testing (unit, integration, automation)? A: I use JUnit and Mockito for unit testing, and Spring’s Test framework for integration tests. For end-to-end automation, I’ve worked with Selenium and REST Assured. I integrate these tests into Jenkins pipelines to ensure code quality with every push.

Behavioral / Cultural Fit

Q8: How do you stay updated with emerging technologies? A: I subscribe to newsletters like InfoQ and follow GitHub trending repositories. I also take part in hackathons and complete Udemy/Coursera courses. Recently, I explored Quarkus and Micronaut to compare their performance with Spring Boot in cloud-native environments.

Q9: Tell us about a time you challenged the status quo or proposed a modern tech solution. A: At my last job, I noticed performance issues due to a legacy monolith. I advocated for a microservices transition. I led a proof-of-concept using Spring Boot and Docker, which gained leadership buy-in. We eventually reduced deployment time by 70% and improved maintainability.

Bonus: Domain Experience

Q10: Do you have experience supporting back-office teams like Compliance or Finance? A: Yes, I’ve built reporting tools for Compliance and data reconciliation systems for Finance. I understand the importance of data accuracy and audit trails, and have used role-based access and logging mechanisms to meet regulatory requirements.

[associative7]

Build Agile and Scalable Cloud-Native Apps with Quarkus Development at Associative, Pune

In the age of cloud computing and containerization, businesses require agile and scalable applications that thrive in dynamic environments. Enter Quarkus, a next-generation Java framework designed specifically for building cloud-native applications. At Associative, a leading software development and consulting company in Pune, India, we leverage Quarkus‘ potential to deliver high-performing and future-proof software solutions.

What is Quarkus?

Quarkus is an open-source framework built on top of Java and Kubernetes that empowers developers to create:

Fast-Booting & Lightweight Applications: Quarkus applications boast rapid startup times and minimal resource consumption, ideal for cloud deployments.

Microservices Architecture: The framework promotes a microservices architecture, enabling you to build modular and independently deployable services.

Container-Optimized Development: Quarkus integrates seamlessly with containers, making it perfect for containerized deployments like Kubernetes.

Reactive Programming: Embrace a reactive programming paradigm for building highly responsive and scalable applications.

Reduced Development Time: Benefit from features like hot reloading that streamline the development process.

Why Choose Associative for Quarkus Development?

Associative, with its team of certified Quarkus developers in Pune, offers a comprehensive range of services to supercharge your cloud-native development journey:

Expert Guidance: We provide in-depth consultations to assess your project needs and craft a robust Quarkus development strategy.

Full-Stack Development: Our developers possess expertise in building APIs, microservices, and web applications using Quarkus.

Containerization & Deployment: We’ll seamlessly containerize your Quarkus application and ensure efficient deployment on cloud platforms like Kubernetes.

API Gateway & Security Integration: We’ll integrate API gateways and robust security measures to protect your cloud-native applications.

Performance Optimization: Our team will fine-tune your application for optimal performance in cloud environments.

Ongoing Support & Maintenance: We offer continuous support and maintenance to ensure your Quarkus application functions flawlessly.

Associative: Your Trusted Partner for Building Cloud-Native Apps with Quarkus

By partnering with Associative for your Quarkus development project, you gain a team of passionate developers proficient in creating robust and scalable cloud-native applications. We are committed to delivering exceptional results that empower your business to thrive in the ever-evolving cloud landscape.

Ready to embark on your cloud-native development journey with Quarkus?

[codecraftshop]

Watch "Introduction to quarkus - quarkus tutorial | quarkus for beginners | CodeCraftShop" on YouTube

Watch “Introduction to quarkus – quarkus tutorial | quarkus for beginners | CodeCraftShop” on YouTube

[datamattsson]

Got Quarkus?

[online-qualityassignmenthelp]

Clojure programming help- A simple way to get help

New Post has been published on https://qualityassignmenthelp.com/clojure-programming-help-a-simple-way-to-get-help/

Clojure programming help- A simple way to get help

Clojure is a functional programming language famous for writing clear and compelling codes. Clojure provides an immutable data structure, functions as first-class objects, and recursive looping. It also considers the adequate replacement of java language.

Clojure programming help

Like Haskell, Clojure, as a famous language, has been teaching in universities for many years. Professors assign many easy-to-hard assignments, homework, and even final year projects to the students.

It is bright like a sun that Clojure is a hard language; one needs to master minute things to solve the assignments. That’s why many students could not complete their Clojure assignments before the deadline and get the lowest grades.

Are you also facing the same situation? Do you not have enough time or focus to complete the Clojure final year project? If so, you do not need to worry as Qualityassignmenthelp.com, through its team of full-stack web developers and programmers are committed to providing the grades-driven and student-centric Clojure programming help.

What is the Clojure language?

Clojure is a gathered functional programming language yet remains powerful – each component upheld by Clojure is supported at runtime.

Clojure gives simple admittance to the Java systems, with discretionary sort clues and type induction, to guarantee that calls to Java can maintain a strategic distance from reflection.

It dominatingly a practical, functional programming language and highlights a rich arrangement of changeless, relentless information structures.

When an alterable state is required, Clojure offers a product value-based memory framework and a responsive Agent framework that guarantees perfect, right, multithreaded plans.

What is Clojure used for?

Clojure uses to create the codes quickly and efficiently. The diversity of programming language and the aim to develop new languages stem from making simple languages.

For sure, Clojure is one of the simple languages because it takes less time and effort to establish codes through Clojure.

As a programmer, errors in compiling codes and then debugging such errors are the most heart-wrenching tasks. Contrary to other programming languages and functional programming languages, it is relatively easy in Clojure to design error-free codes.

Features of Clojure language

1- Clojure is information-oriented

Straightforwardness additionally comes from the way that Clojure isn’t object arranged; it is information oriented. Information is spoken to by permanent hash-maps rather than classes, as in Java.

These information structures are easy to control with functions, yet they are commonly free. Object orientation compels you to ceaselessly re-imagine the wheel since it expects you to place your information into classes.

Our Clojure developers understand this; that’s why we provide top-notch Clojure assignment help.

2- Clojure requires fewer lines of code

When utilizing Clojure, you don’t need to worry about the monstrous overhead concern that happens with object arranged dialects.

Such overhead comprises composing the interface and using code to ‘ensure’ your information structures. This implies that you need fewer Clojure lines of code than Java lines of code to accomplish a similar outcome.

Another motivation behind why you need to compose fewer code lines is because Clojure is a useful functional programming language.

Such dialects are known to be more expressive than basic programming dialects. For example, in Clojure, you don’t need to compose circles or cycles for assortments calculations.

Our Clojure developers understand this; that’s why we provide top-notch Clojure assignment help.

3- Multiple platforms supported language

The Clojure biological system empowers you to reuse your insight into the language in various conditions. For worker side advancement, you use Clojure on the JVM (or in .NET through ClojureCLR).

For front end improvement, you use ClojureScript, which gathers to JavaScript. The ClojureScript compiler can be utilized for programs that run in the program, yet also the worker side – utilizing NodeJS.

Much exertion has been placed in keeping Clojure executions commonly predictable. They separate due to stage impediments. One illustration of such a condition is the nonattendance of multi-stringing in the program.

Our Clojure developers understand this; that’s why we provide top-notch Clojure programming help.

4- Clojure is intuitive

Clojure is an intuitive, functional programming language. Through the REPL (read-eval-print circle), you get sharp criticism.

And while creating, you can rethink your capacities and re-test them, even while the application is running – without beginning another assemble cycle. Instruments, for example, JRebel or Quarkus, for hot code reloading isn’t essential.

Clojure-Final year project help

Students in the universities get the final year project on Clojure language. Professors ask them to complete the final year project timely to pass the semester. Many students could not complete their Clojure last year project because they do not know the tiny details.

So at Qualityassignmnethelp.com, we do not understand the importance of Clojure’s final year project help and have the best mechanism to complete your project.

Likewise, our Clojure language help caters to the needs of students and university requirements. Our experts have excellent know-how of market trends and have an intuitive approach to tackling your Clojure final year project.

Why should you avail of our Clojure language help?

We have a robust mechanism to assist students

We provide 100% customer satisfaction

Our experts offer affordable Clojure assignment help

We have experienced Clojure programmers

Feel interested? Contact us

[holytheoristtastemaker]

Soft skills are all to do with how we interact with other people. This is opposed to “hard skills” which are to do with acquired abilities that require specific knowledge. There are many reasons why soft skills are equally, if not more important than hard skills for software developers.

Web developers these days need to compete not only with other developers, but also with tools like free website builders. This means they need to have a range of skills in order to remain competitive.

When we talk about skills for developers, we commonly think about technical skills and knowledge. However, less technical skills can be just as critical, supporting better performance and delivering a much stronger end product.

What are soft skills?

Soft skills are all to do with how we interact with other people. This is opposed to “hard skills” which are to do with acquired abilities that require specific knowledge. In software development, this generally means how you interact with programs and machines, such as Java or Quarkus skills. Having well-developed skills of this nature means that you can work well with others, collaborate, and have positive personal interactions.

These are skills that are not only vital for communicating and negotiating with other people. In essence, they are the skills that help us to show others who we are, and our worth to a team. It is often assume that while hard skills are learnt, soft skills are natural abilities that you either have or you don’t. However, although these skills come more naturally to some than to others, they too can be learnt and developed with some time and effort.

Why soft skills are important

There are many reasons why soft skills are equally, if not more important than hard skills for software developers.

Soft skills mean better teamwork

As a developer, it can be easy to focus on the screen in front of you, and get caught up the task you are doing or the problem you are solving. However, it pays to remember that software development is a team effort. You are not alone, but part of a team.

Therefore it is critical that developers work well with others and this is where soft skills come in. Even if you are great at your job, if you cannot communicate what you are doing to the rest of your team, this could cause major issues. Strong skills like great communication skills are vital to the whole team functioning well together, and the project performing optimally.

Soft skills are vital for networking

These types of skills are essential for networking, which is often-overlooked but highly important for software developers. Networking is essential for professionals in many industries, and software development is no exception. It can help you find new job opportunities, find a mentor, or make connections that can help you improve your performance as a developer.

Networking, however, can be extremely challenging. It requires a high degree of nuanced interpersonal skills. You also need to be confident in talking and approaching people you don’t know very well (or at all), and have great soft skills will give you that confidence.

Soft skills help with retention

In a highly mobile sector like software development where talent is often highly sought-after, team retention is vital to companies. Once a company finds great talent, they must hold on to them at all costs, because the cost of finding, replacing, and training them can be devastatingly high. Not to mention the loss of productivity in transition periods and caused by a well-functioning team breaking up.

From the company’s perspective, hiring a developer with great soft skills means a greater chance for staff retention. This is because a developer who has strong inter-personal skills will be able to communicate better with their supervisors and their colleagues, meaning they’ll be happier and more connected to their work, and therefore less likely to leave. As a developer, having a wide range of skills makes you more hireable in more ways than one. Although soft skills are sometimes seen as less important than the “hard” skills, they are equally, if not more important for developers. Soft skills make you a better team member, a better communicator, allow you to network, and make you more hireable

[online-qualityassignmenthelp]

Clojure programming help- A simple way to get help

New Post has been published on https://qualityassignmenthelp.com/clojure-programming-help-a-simple-way-to-get-help/

Clojure programming help- A simple way to get help

Clojure is a functional programming language famous for writing clear and compelling codes. Clojure provides an immutable data structure, functions as first-class objects, and recursive looping. It also considers the adequate replacement of java language.

Clojure programming help

Like Haskell, Clojure, as a famous language, has been teaching in universities for many years. Professors assign many easy-to-hard assignments, homework, and even final year projects to the students.

It is bright like a sun that Clojure is a hard language; one needs to master minute things to solve the assignments. That’s why many students could not complete their Clojure assignments before the deadline and get the lowest grades.

Are you also facing the same situation? Do you not have enough time or focus to complete the Clojure final year project? If so, you do not need to worry as Qualityassignmenthelp.com, through its team of full-stack web developers and programmers are committed to providing the grades-driven and student-centric Clojure programming help.

What is the Clojure language?

Clojure is a gathered functional programming language yet remains powerful – each component upheld by Clojure is supported at runtime.

Clojure gives simple admittance to the Java systems, with discretionary sort clues and type induction, to guarantee that calls to Java can maintain a strategic distance from reflection.

It dominatingly a practical, functional programming language and highlights a rich arrangement of changeless, relentless information structures.

When an alterable state is required, Clojure offers a product value-based memory framework and a responsive Agent framework that guarantees perfect, right, multithreaded plans.

What is Clojure used for?

Clojure uses to create the codes quickly and efficiently. The diversity of programming language and the aim to develop new languages stem from making simple languages.

For sure, Clojure is one of the simple languages because it takes less time and effort to establish codes through Clojure.

As a programmer, errors in compiling codes and then debugging such errors are the most heart-wrenching tasks. Contrary to other programming languages and functional programming languages, it is relatively easy in Clojure to design error-free codes.

Features of Clojure language

1- Clojure is information-oriented

Straightforwardness additionally comes from the way that Clojure isn’t object arranged; it is information oriented. Information is spoken to by permanent hash-maps rather than classes, as in Java.

These information structures are easy to control with functions, yet they are commonly free. Object orientation compels you to ceaselessly re-imagine the wheel since it expects you to place your information into classes.

Our Clojure developers understand this; that’s why we provide top-notch Clojure assignment help.

2- Clojure requires fewer lines of code

When utilizing Clojure, you don’t need to worry about the monstrous overhead concern that happens with object arranged dialects.

Such overhead comprises composing the interface and using code to ‘ensure’ your information structures. This implies that you need fewer Clojure lines of code than Java lines of code to accomplish a similar outcome.

Another motivation behind why you need to compose fewer code lines is because Clojure is a useful functional programming language.

Such dialects are known to be more expressive than basic programming dialects. For example, in Clojure, you don’t need to compose circles or cycles for assortments calculations.

Our Clojure developers understand this; that’s why we provide top-notch Clojure assignment help.

3- Multiple platforms supported language

The Clojure biological system empowers you to reuse your insight into the language in various conditions. For worker side advancement, you use Clojure on the JVM (or in .NET through ClojureCLR).

For front end improvement, you use ClojureScript, which gathers to JavaScript. The ClojureScript compiler can be utilized for programs that run in the program, yet also the worker side – utilizing NodeJS.

Much exertion has been placed in keeping Clojure executions commonly predictable. They separate due to stage impediments. One illustration of such a condition is the nonattendance of multi-stringing in the program.

Our Clojure developers understand this; that’s why we provide top-notch Clojure programming help.

4- Clojure is intuitive

Clojure is an intuitive, functional programming language. Through the REPL (read-eval-print circle), you get sharp criticism.

And while creating, you can rethink your capacities and re-test them, even while the application is running – without beginning another assemble cycle. Instruments, for example, JRebel or Quarkus, for hot code reloading isn’t essential.

Clojure-Final year project help

Students in the universities get the final year project on Clojure language. Professors ask them to complete the final year project timely to pass the semester. Many students could not complete their Clojure last year project because they do not know the tiny details.

So at Qualityassignmnethelp.com, we do not understand the importance of Clojure’s final year project help and have the best mechanism to complete your project.

Likewise, our Clojure language help caters to the needs of students and university requirements. Our experts have excellent know-how of market trends and have an intuitive approach to tackling your Clojure final year project.

Why should you avail of our Clojure language help?

We have a robust mechanism to assist students

We provide 100% customer satisfaction

Our experts offer affordable Clojure assignment help

We have experienced Clojure programmers

Feel interested? Contact us

[holytheoristtastemaker]

OCI Grails & Micronaut Product Lead and Principal Software Engineer, Graeme Rocher, published a report comparing the speeds of Micronaut, Quarkus, and Spring Boot on JDK 14. Which is the fastest and which has the lowest memory consumption? What do we want? Speed. Which is the fastest microservice framework? Quarkus, Micronaut, and Spring Boot are three modern frameworks for Java that share a similar overlap of features and capabilities. While all three services have their pros, cons, and unique use cases, they are often pitted against each other. Which is the fastest and which has the lowest memory consumption? Quarkus, Micronaut, and Spring Boot Let’s take a quick rundown of all three frameworks. Developed by Red Hat, Quarkus is a “supersonic subatomic Java”, which is not only fun to say, but a perfect description. It is a Kubernetes-native Java stack designed for OpenJDK HotSpot and GraalVM and includes the best Java libraries and standards. One of the pros of Quarkus is its speedy start-up time. Micronaut is a cloud-native JVM-based polyglot full-stack framework for building microservices and serverless applications. It features low memory consumption, no matter the size of your codebase. Check out the guide for Micronaut 2.0.0.M2 release. Spring Boot is an open source Java framework that makes it easy to create stand-alone production-grade Spring applications and microservices with embedded Tomcat, Jetty, or Undertow. Spring Boot apps require little configuration so they can “just run”. All of these frameworks claim speed, but only one can be the fastest. Putting them to the test OCI Grails & Micronaut Product Lead and Principal Software Engineer, Graeme Rocher published a report comparing the speeds of Micronaut, Quarkus, and Spring Boot on JDK 14. The test looks at Micronaut 2.0 M2, Quarkus 1.3.1, and Spring Boot 2.3 M2 on JDK 14 using a 2019 iMac Pro Xeon 8 Core. Here are the results of the benchmark test, taken from an average of 10 runs: Benchmark results. Source. The test confirms that Quarkus’ boot time is unmatched with a time to first response of 890ms. Spring is the best at compilation time with 1.33s for a ./mvn clean compile. (Graeme Rocher notes that this is because Spring does not perform any compilation-time processing.) However, as you can see from the table, in every other task, Micronaut takes the lead and has the lowest memory consumption after load test of the three. Graeme Rocher writes: The Quarkus team has made bold claims about the memory efficiency of Quarkus, so it was surprising to see such a disparity when actual tests were conducted that seem to disprove these claims. The Micronaut team and I are disappointed that we had to take it upon ourselves to perform these tests and publish the results, not as a simple opportunity to help others improve their processes and applications, but to respond to misinformation that could, theoretically, do the opposite. Source code In order to prevent reporting bias, the source code for the examples is available on GitHub for users to test out for themselves on their own machine. See the performance comparison video on YouTube. At the end of the day, the key takeaway here is that all three are quite fast. The Micronaut, Quarkus, and Spring frameworks all have great performance that will likely only continue to improve with future updates. Do your numbers differ? Which JVM framework do you prefer?

http://damianfallon.blogspot.com/2020/04/micronaut-benchmarks-faster-than.html

[holytheoristtastemaker]

Quarkus is a new technology aimed at cloud development. With Quarkus, you can take advantage of smaller runtimes optimized for the cloud. You don’t need to relearn new APIs. Quarkus is built on top of the best-of-breed technologies from the last decade, like Hibernate, RESTEasy, Vert.x, and MicroProfile. Quarkus is productive from day one. Quarkus is production ready. Quarkus created quite a buzz in the enterprise Java ecosystem in 2019. Like all other developers, I was curious about this new technology and saw a lot of potential in it. What exactly is Quarkus? How is it different from other technologies established in the market? How can Quarkus help me or my organization? Let’s find out. What is Quarkus? The Quarkus project dubbed itself Supersonic Subatomic Java. Is this actually real? What does this mean? To better explain the motivation behind the Quarkus project, we need to look into the current state of software development. From On-Premises to Cloud The old way to deploy applications was to use physical hardware.  With the purchase of a physical box, we  paid upfront for the hardware requirements. We had already made the investment, so it wouldn’t matter if we used all the machine resources or just a small amount. In most cases, we wouldn’t care that much as long as we could run the application. However, the Cloud is now changing the way we develop and deploy applications. In the Cloud,  we pay exactly for what we use. So we have become pickier with our hardware usage. If the application takes 10 seconds to start, we have to pay for these 10 seconds even if the application is not yet ready for others to consume. Java and the Cloud Do you remember when the first Java version was released? Allow me to refresh your memory — it was in 1996. There was no Cloud back then. In fact, it only came into existence several years later. Java was definitely not tailored for this new paradigm and had to adjust. But how could we change a paradigm after so many years tied to a physical box where costs didn’t matter as much as they do in the Cloud? It’s All About the Runtime The way that many Java libraries and frameworks evolved over the years was to perform a set of enhancements during runtime. This was a convenient way to add capabilities to your code in a safe and declarative way. Do you need dependency injection? Sure! Use annotations. Do you need a transaction? Of course! Use an annotation. In fact, you can code a lot of things by using these annotations that the runtime will pick and handle for you. But there is always a catch. The runtime requires a scan of your classpath and classes for metadata. This is an expensive operation that consumes time and memory. Quarkus Paradigm Shift Quarkus addressed this challenge by moving expensive operations like Bytecode Enhancement, Dynamic ClassLoading, Proxying, and more to compile time. The result is an environment that consumes less memory, less CPU, and faster startup. This is perfect for the use case of the Cloud, but also useful for other use cases. Everyone will benefit from less resources consumption overall, no matter the environment. Maybe Quarkus is Not So New Have you heard of or used technologies such as CDI, JAX-RS, or JPA? If so, the Quarkus stack is composed of these technologies that have been around for several years. If you know how to develop these technologies, then you will know how to develop a Quarkus application. Do you recognize the following code? @Path("books") @Consumes(APPLICATION_JSON) @Produces(APPLICATION_JSON) public class BookApi { @Inject BookRepository bookRepository; @GET @Path("/{id}") Response get(@PathParam("id")Long id) { return bookRepository.find(id) .map(Response::ok) .orElse(Response.status(NOT_FOUND)) .build(); } } Congratulations, you have your first Quarkus app! Best of Breed Frameworks and Standards The Quarkus programming model is built on top of proven standards, be it official standards or de facto standards. Right now, Quarkus has first class support for technologies like Hibernate, CDI, Eclipse MicroProfile, Kafka, Camel, Vert.x, Spring, Flyway, Kubernetes, Vault, just to name a few. When you adopt Quarkus, you will be productive from day one since you don’t really need to learn new technologies. You just use what has been out there for the past 10 years. Are you looking to use a library that isn’t yet in the Quarkus ecosystem? There is a good chance that it will work out of the box without any additional setup, unless you want to run it in GraalVM Native mode. If you want to go one step further, you could easily implement your own Quarkus extension to provide support for a particular technology and enrich the Quarkus ecosystem. Quarkus Setup So, you may be asking if there is something hiding under the covers. In fact yes there is. You are required to use a specific set of dependencies in your project that are provided by Quarkus. Don’t worry, Quarkus supports both Maven and Gradle. For convenience, you can generate a skeleton project in Quarkus starter page, and select which technologies you would like to use. Just import it in your favorite IDE and you are ready to go. Here is a sample Maven project to use JAX-RS with RESTEasy and JPA with Hibernate: 4.0.0 org.acme code-with-quarkus 1.0.0-SNAPSHOT 3.8.1 true 1.8 1.8 UTF-8 UTF-8 1.3.0.Final quarkus-universe-bom io.quarkus 1.3.0.Final 2.22.1 ${quarkus.platform.group-id} ${quarkus.platform.artifact-id} ${quarkus.platform.version} pom import io.quarkus quarkus-resteasy io.quarkus quarkus-junit5 test io.rest-assured rest-assured test io.quarkus quarkus-hibernate-orm io.quarkus quarkus-resteasy-jsonb io.quarkus quarkus-maven-plugin ${quarkus-plugin.version} build maven-compiler-plugin ${compiler-plugin.version} maven-surefire-plugin ${surefire-plugin.version} org.jboss.logmanager.LogManager You might have noticed that most of the dependencies start with the groupId io.quarkus and that they are not the usual dependencies that you might find for Hibernate, Resteasy, or Junit. Quarkus Dependencies Now, you may be wondering why Quarkus supplies their own wrapper versions around these popular libraries. The reason is to provide a bridge between the library and Quarkus to resolve the runtime dependencies at compile time. This is where the magic of Quarkus happens and provides projects with fast start times and smaller memory footprints. Does this mean that you are constrained to use only Quarkus specific libraries? Absolutely not. You can use any library you wish. You run Quarkus applications on the JVM as usual, where you don’t have limitations. GraalVM and Native Images Perhaps you already heard about this project called GraalVM by Oracle Labs? In essence, GraalVM is a Universal Virtual Machine to run applications in multiple languages. One of the most interesting features is the ability to build your application in a Native Image and run it even faster! In practice, this means that you just have an executable to run with all the required dependencies of your application resolved at compile time. This does not run on the JVM — it is a plain executable binary file, but includes all necessary components like memory management and thread scheduling from a different virtual machine, called Substrate VM to run your application. For convenience, the sample Maven project already has the required setup to build your project as native. You do need to have GraalVM in your system with the native-image tool installed. Follow these instructions on how to do so. After that, just build as any other Maven project but with the native profile: mvn verify -Pnative. This will generate a binary runner in the target folder, that you can run as any other binary, with ./project-name-runner. The following is a sample output of the runner in my box: [io.quarkus] (main) code-with-quarkus 1.0.0-SNAPSHOT (powered by Quarkus 1.3.0.Final) started in 0.023s. Listening on: http://0.0.0.0:8080 INFO [io.quarkus] (main) Profile prod activated. [io.quarkus] (main) Installed features: [agroal, cdi, hibernate-orm, narayana-jta, resteasy, resteasy-jsonb] Did you notice the startup time? Only 0.023s. Yes, our application doesn’t have much, but still pretty impressive. Even for real applications, you will see startup times in the order of milliseconds. You can learn more about GraalVM on their website. Developer Productivity We have seen that Quarkus could help your company become Cloud Native. Awesome. But what about the developer? We all like new shiny things, and we are also super lazy. What does Quarkus do for the developer that cannot be done with other technologies? Well, how about hot reloading that actually works without using external tools or complicated tricks? Yes, it is true. After 25 years, since Java was born, we now have a reliable way to change our code and see those changes with a simple refresh. Again, this is accomplished by the way Quarkus works internally. Everything is just code, so you don’t have to worry about the things that made hot reloading difficult anymore. It is a trivial operation. To accomplish this, you have to run Quarkus in Development Mode. Just run mvn quarkus:dev and you are good to go. Quarkus will start up and you are free to do the changes to your code and immediately see them. For instance, you can change your REST endpoint parameters, add new methods, and change paths. Once you invoke them, they will be updated reflecting your code changes. How cool is that? Is Quarkus Production Ready? All of this seems to be too good to be true, but is Quakus actually ready for production environments? Yes it is. A lot of companies are already adopting Quarkus as their development/runtime environment. Quarkus has a very fast release cadence (every few weeks), and a strong Open Source community that helps every developer in the Java community, whether they are just  getting started with Quarkus or are an advanced user. Check out this sample application that you can download or clone. You can also read some of the adoption stories in a few blog posts so you can have a better idea of user experiences when using Quarkus. Conclusion After a year of its official announcement, Quarkus is already on version 1.3.1.Final. A lot of effort is being put in the project to help companies and developers to write applications that they can run natively in the Cloud. We don’t know how far Quarkus can go, but one thing is for certain: Quarkus shook the entire Java ecosystem in a space dominated by Spring. I think the Java ecosystem can only win by having multiple offerings that can push each other and innovate to keep themselves competitives.

http://damianfallon.blogspot.com/2020/04/getting-started-with-quarkus.html