I have a Gradle project using the Kotlin Gradle plugin. I want to build a Java 9 module, so my directory structure looks like this: src/main/java/ - module-info.java src/main/kotlin/ - Foo.kt -...

I wanted to use some codes that using sun.awt.image.PNGImageDecoder in my project. The problem is source code is based on Java 8 and my project using JDK 9+ (11). So I got this error: Package 'sun...

I tried to follow this question but it does`t work for me. I want to compile 1 module (which does not requires any other module or jar) together with other classes which use this module and will be...

I have some model classes that are instantiated many times and have many fields. While I could initialize all fields as Simple*Propertys, this significantly slows performance due to the allocations...

In module-info.java i get the error Package 'com.example' reads package 'javafx.beans' from both 'javafx.base' and 'javafx.base'. Not only does the migration (Java 8 to Java 11) frustrate me ...

I'm trying to access a file in my eclipse project from a class within the project. I need to declare the project as a jigsaw module to reach it from other projects, however by doing this, I n...

With Java 9 on the close horizon I thought it would be a good learning exercise to port some of my projects over to Java 9. In one of my projects I have dependencies for rxjava and rxjavafx depend...

I upgraded the SDK that my project uses to Java 10. The following import statement caused an error: import javax.annotation.PostConstruct; Package 'javax.annotation' is declared in module 'java...

I try to migrate a Java8 project to Java9. The auto generated module-info.java contains an entry requires log4j; and an error is shown: log4j cannot be resolved to a module => How do I corre...

I'm debugging why in the presence of module-info.java in my Spring Boot application, spring-orm throws an exception during start up time. This is the exception: org.springframework.beans.factory.B...

We use maven and have artifacts that in turn depend on other internal artifacts. I am in the process of migrating to java-9, and intend to migrate everything to Java 9 first without modularizing th...

I am new to Java 9 and was going though the modular video lectures by Java on YouTube. They mentioned 3 benefits of modularization- 1. No missing dependencies 2. No cyclic dependnpcies 3. No split ...

Consider the following code in a maven project: import org.w3c.dom.css.CSSStyleDeclaration; public class Test { public static void main(String[] args) { CSSStyleDeclaration styleDeclaration = n...

I am migrating my project from Java 8 to Java 9. My project is mavenised. Now for migrating to Java 9, I am planning on creating a separate module directory where all the required dependency of a m...

I installed the release version of JDK 9 on Mac OS. jshell works great, Jigsaw module support works, but there is no jlink: ➜ java --version java 9 Java(TM) SE Runtime Environment (build 9+181) J...

When I compile my Spring Boot application in Java 9, it fails after a couple of messages such as this one: package com.fasterxml.jackson.annotation is not visible (package com.fasterxml.jackson.a...

What's the naming convention for java 9 modules? Let's say my package name is me.jasonyeo.awesome.project, and whenever I create a module-info.java file in IDEA, it would suggest me to name i...

I'm migrating an application to Java 10. Our application normally runs with the JRE, but we allow users to compile bits of their own custom code by bundling tools.jar and using reflection to load a...

I'm upgrading a Java desktop application to JDK10 and need to leverage modules to use the javapackager to build a native package. Everything was working great until I added an obfuscation step usin...

I'm using Java 9.0.4 in Eclipse Oxygen.3a JUnit 5 is on the modul-path and required in the module-info.java. When I try to run my code i always get the following message: Error occurred durin...

I've spent some time to migrate my project written in Groovy to Java 10. Now it's possible to compile and run it. But still it doesn't use any benefits of Java 9 modularity. Googling about Groovy a...

In my multi-module project, I created module-info.java only for few modules. And during compilation with maven-compiler-plugin:3.7.0 I'm getting next warning: [WARNING] * Required filename-base...

I'm investigating using Jigsaw to reduce the footprint of a microservice. One of the last dependencies I had to find was java.beans.Introspector. Imagine my surprise when I discovered I needed to ...

If I have all types of modules in my project (application, automatic and unnamed) how exactly Maven will work with them? Can I enforce Maven to treat some jars as automatic modules whereas other mo...

I am trying to acquaint myself with Java 9 modules and how to define them in IntelliJ. Among other things, I want to solve a split package problem using the --patch-module compiler/JVM flag and I d...