I am using jdk9-ea 149 and created a sample javafx application IntelliJ doesn't understand the java libraries, It's shows all the import statement in red color and they are all grayed out.even for...

I am experimenting with Java 9 and looking at the following scenarios: Experiment 1 module A module B both declare a non empty package named com.foo, but do not export it. both are required by a...

Using IDEA-EAP for JDK9 development experiments. I am getting the following error - Error:(3, 20) java: package jdk.internal.misc is not visible (package jdk.internal.misc is declared in modul...

The Javadoc tool generates documentation based on the accessibility modifier. By default, it document all public and protected classes, fields and methods. This can be changed with the following op...

I am currently testing to migrate an existing application to Jigsaw Modules. One of my modules uses ElasticSearch along with its Groovy Plugin. org.elasticsearch:elasticsearch org.elasticsearch.m...

I have the follwing Java 9 module: module com.example.a { exports com.example.a; } With an exported type: public class Api { public static void foo(ImplDetail args) {} } And a non-exported...

Background In maven, an artifact can declare a dependency with <optional>true</optional> which means that the dependency is not required, but can be used if present. The State of t...

From Jigsaw Project: Make it easier for developers to construct and maintain libraries and large applications, for both the Java SE and EE Platforms. I'm trying to learn what project Jigsaw i...

I created a simple JMOD file with the jmod tool like this $JAVA_HOME/bin/jmod create --class-path classes test/samples.jmod Next, I tried to execute a class within that module by running: java ...

As a core of Jigsaw project is the Java Module System, it would be nice to have an ability to restrict access to particular program elements (classes, methods and fields) within particular module o...

I created two small projects de.app1 and de.app2, where App from de.app1 uses Test from de.app2. ├── de.app1 │   ├── de │   │   └── app │   │   └── App.java │   └── module-info.java └── de.app2 └...

So far we have been using the Findbugs JSR-305 annotations (com.google.code.findbugs:jsr305) and everything including tool support (Sonar, Eclipse, Findbugs, …) has been working fine. However it i...

I've heard that JVM becomes faster (in some ways) with each major release modularity of 9 will bring faster startup time. In an attempt to speed up a Maven build, I've downloaded jdk9-ea and f...

Java 8 with Project Jigsaw brings a module system to the SDK. I see it as a good thing as it's part of the package (built-in). OSGi also provides a module system, but requires a container. But apar...

So as of yesterday morning I hadn't a clue as to what OSGi even was. OSGi was just some buzzword that I kept seeing cropping up over and over again, and so I finally set aside some time to brush up...

Sun is putting a lot of effort behind modularising the JDK in the form of Jigsaw, and insinuating that it should be the module format of choice for other Java developers as well. The only notable p...