eclipse-2018-09

I just installed the OpenJDK version of the JDK 11 General-Availability Release on Windows 10. I tried to install it as a JRE in the just-released Eclipse 2018-09 (4.9.0), and a message appared in the Eclipse dialog saying: You selected a JRE that this version of Eclipse JDT does not yet support fully. Some of the features may not work as expected. What is the problem? Does Eclipse 2018-09 not fully support JDK 11? Or is it that Eclipse doesn't fully support OpenJDK 11 but supports the Oracle JDK 11? What "features" specifically can I expect to "not work as expected"? Update: From an Internet

I'm running Eclipse 2018-09 (4.9.0) on Windows 10. I'm using Open JDK 11 GA. I have a Maven project that was specified as using Java 8 source code. <properties> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <maven.compiler.source>1.8</maven.compiler.source> <maven.compiler.target>1.8</maven.compiler.target> </properties> That compiles fine using Maven 3.5.3 on the command line. That also compiles fine using Eclipse Eclipse 2018-09 (4.9.0). I changed the compile Java versions to Java 11: <properties> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <maven

This question already has an answer here: What is the replacement for javax.activation package in java 9? 3 answers Replacements for deprecated JPMS modules with Java EE APIs 7 answers I'm migrating java project use JDK8 to use JDK 11 then has error occurred relate of javax activation. Following migration guide from Oracle, I see java.activation that module was removed from JDK 11. After that, I give a suggest to added third parties **activation-1.0.2.jar* but still, an error has occurred? Please give a suggestion about problem ? and could you tell me about experience of Migration source code

I'm running Eclipse 2018-09 (4.9.0) on Windows 10. I'm using Open JDK 11 GA. I have a project using Java 8 compliant source code that compiles fine using the JDK, both from Eclipse and from Maven. I want to use new Java 11 features, so first I changed the compiler source/target from Java 8 to Java 11. It still built find using Maven on the command line, but couldn't compile in Eclipse (see Eclipse 2018-09 won't compile Java 11 source; thinks it is below 1.7 ). So I added the "Java 11 Support for Eclipse 2018-09" plugin from the Eclipse Marketplace. I restarted Eclipse and used Alt+F5 to