Since the Chrome browser was first launched ten years ago, speed has become one of the four core principles of Chrome. We always want web developers to provide users with a fast and excellent online experience. On the occasion of the tenth anniversary of Chrome's birth, we think that in retrospect

Since this blog post has attracted great attention and controversy, we think it is worth adding some background on how we work and make decisions on Allegro. Allegro has more than 50 development teams who can freely choose the technologies supported by our PaaS. We mainly use Jav

Introduction Yesterday I compared different JDK versions and OpenJ9 vs HotSpot from the two dimensions of memory and speed. If you ask me, the memory part tested by a Spring Boot application that actually works and serves REST objects is real. Speed/

OpenJ9 and IBM J9 are different JVM implementations from the default Oracle HotSpot JVM. Using the modern adoptopenjdk to preset Docker images, you can easily switch and test different combinations, and you can choose the appropriate JVM for you. This rumor

Local variable type inference is a controversial hotspot, but Java 10 has brought welcome changes in garbage collection and container recognition in the JVM. About this series, do you think you know Java programming? The fact is that most developers just float on the surface of the Java platform, only

Java 10 introduces a new shiny feature called local variable type inference. Sounds tall, doesn't it? What is it? The following two scenarios are where we, as Java developers, find Java difficult to use. Context: platitudes and code readability

Even for experienced Java developers, reading compiled Java bytecode is tedious. Why do we need to know the underlying things first? This is a simple story that happened to me last week: a long time ago, I made some code changes on the machine

There is no doubt that when it comes to programming languages, Java has the upper hand and is considered one of the most important development languages. However, some languages have been developed based on JVM, such as Kotlin. Kotlin is a static class for modern multi platform applications

Any software developer who has used Java based enterprise back-end applications will encounter such poor and strange errors. These errors come from users or test engineers: java. lang. OutOfMemoryError: Java heap space. In order to clarify the problem

Although it feels that JDK9 is only a few weeks old, with the release rhythm of the new OpenJDK, JDK10 has reached the release candidate milestone stage. I have read various blogs about the new features of JDK10, but they tend to focus on the ones defined by JEPS

If you want to use Java 9 to run the Spring Boot application, this article will help you. Note: The Issue Tracker contains all outstanding known issues about Java 9, so please check the list before reporting new issues. Require Sp

Directory multi platform project Other language features Standard library JVM backend JavaScript backend multi platform project (experimental) Multi platform project is a new experimental function in Kotlin 1.2, which allows you to use Kotlin – JVM, JavaScript and (future)

Want to keep your project running at high performance? Here are some tips you can use to eliminate cache bottlenecks, as well as some other performance tuning suggestions. Most developers think that performance optimization is a complex topic, which requires a lot of work experience and relevant knowledge

Last week, I tried to make a Spring Boot application - an app of the famous Pet Clinic, which is compatible with Java 9. It's not easy. I have to give up many functions. In summary, the only benefit is improved String memory

New features and enhancements in Spring Framework 5.0 JDK 8+and Java EE 7+benchmark versions are based on the complete framework code at the Java 8 source code level, which improves readability by introducing generics, lambdas, etc. Conditional support for Java 8 functions through direct code

For Java developers using Visual Studio Code, the Language Support for Java (TM) by Red Hat extension provides excellent language feature support, such as IntelliSense and project support. However, we also heard some user feedback that

Do you know the difference between stack and heap? When to use which one, and what functions do they provide? This is a guide to memory allocation. Stack and heap are two important concepts related to Java memory allocation. Let's take a look at these two concepts. Why are they important

More than three years after the release of Java 8, the next version will be released in July 2017. You may have heard of the Java 9 module system, but this new version has many other updates. Here are nine exciting new features that will come with Java 9

Java 8 provides many tools that allow you to connect to MongoDB, query data, and even convert results. Welcome to the new series of tutorials: learning MongoDB using Java 8. Through this tutorial, I hope you have a basic overview of the big data and new features provided by Java 8

When writing "web crawlers" or downloaders, it is a common requirement to implement URL encoding and decoding in Java. The focus of this article is to create a module for encoding and decoding the passed URL. You can check the source code on GitHub. Main