![]() ![]() If you're using Maven, you can achieve the latter with the maven-dependency-plugin's copy-dependencies goal. It will be easiest if you have a JAR of your project and next to it a folder with all its transitive dependencies. ▚Code Alongįor this tutorial, I encourage you to follow along, preferably with one of your projects. In this tutorial, I'll introduce you to how JDeps works - follow-up posts will show you some great use cases for it. JDeps can also tell you which JDK-internal APIs your project is using and is fully aware of the module system.Īll in all it is a very useful tool to examine various forms of dependency graphs. The results can be filtered in various ways and can be aggregated to package or JAR level. ![]() class files or the JARs that contain them, and analyzes the statically declared dependencies between classes. All in all, I would certainly look into writing your next Java library in Kotlin as it contains many features that make it an attractive, fun, and powerful language to work with.JDeps is the Java Dependency Analysis Tool, a command line tool that processes Java bytecode, meaning. The biggest takeaways for me were that writing a Java library with Kotlin can be done and the process isn’t too difficult. If I had a prior experience in Java, choosing Kotlin as the featured language for our Java SDK may have been a different story. Additionally, we get to support two languages with one codebase due to Kotlin’s 100% interoperability with Java. Since Kotlin was more similar to other languages I’ve used in the past, the learning curve wasn’t too hard to get past. I was initially skeptical of writing an SDK in Kotlin that targeted Java, but I’m glad we did. Should you consider writing a Java library in Kotlin? While I haven’t looked into it much, it sounds like other tools such as Nullness Checker are available which can treat these warnings as compilation errors to prevent you from shipping code with errors. Over the course of evaluating, I discovered that Kotlin automatically adds and annotations to your code which, at the very least, will provide warnings when writing Java code as long as your editor recognizes the annotations. This article from the University of Washington goes into detail on the pros and cons of using. After looking into it more closely, I decided against using for my particular use case as it didn’t make much sense. Since Java doesn’t support nullable types, I looked into using in my Kotlin code instead of Kotlin’s nullable types (e.g. ![]() In my case, I also had to add a couple plugins to my file: plugins "īy adding the annotation to the greet function, we can now call this method in Java using either of the two signatures: eet(new Person("John")) This is as simple as publishing our library on GitHub as a public repository. Next we can publish our newly created library with JitPack. Once you’re done, you can run gradle tests to make sure everything works. Just create a directory, cd into it, and run gradle init to run the generator. It’s too easy to forget something or to make a simple mistake. ![]() I rarely start a new project without using a generator especially when I’m not familiar with the language I’m working in. Let’s take a look at what I’ve learned along the way about publishing a Kotlin library that can be used by Java. The process has been pretty straightforward and enjoyable so far. The idea of this new language providing developers with a more helpful way to approach JavaScript led me down the road of writing the new SDK in Kotlin. It came across as a friendlier, more modern version of Java. Ī statically typed programming language targeting JVM, Android, JavaScript & NativeĪ while back, one of our developers gave a Lunch & Learn presentation on Kotlin when it was first introduced, and I remember one of its biggest selling points was interoperability with existing Java code. The more I looked into things the more I came across Kotlin. As someone with virtually no Java experience, I started exploring the Java ecosystem to see what I was getting myself into. Based on feedback from the developer community, we recently decided to build a new Java SDK for our API to make integrating with our API easier for Java developers. ![]()
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