Eclipse Java9 Export Runnable JAR file [duplicate]

Question

I am trying to setup Eclipse with Java 9 but the Export -> Runnable JAR file is not working since it can't find the main method.

Context:

• Windows 10

• Eclipse IDE version Oxygen 1a Release (4.7.1a) Build: 20171005-1200

• JDK 9.0.1 and JRE 9.0.1 installed & setup in Eclipse

What I did:

• File -> New Java Project

• Click on "Finish"

---

• Right click on src -> New -> Class

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Edited Main.java to following code:

package com.application;

public class Main {

  public static void main(String[] args) {
    System.out.println(System.getProperty("java.version"));
  }
}

Run -> No errors.

Console log result: "9.0.1"

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Now I want to export the code to a Runnable JAR: Right click on the Project -> Export -> Runnable JAR file

So I went to the Run Configurations but the Main class is defined:

---

With Java 8 there was no problem exporting the jar following the steps above.

What do I have to do, to use the "export to Runnable JAR file" in Java 9?

Answer 1

I had the same problem and I used the export "Jar file" option, not the "Runnable Jar file". Then I selected the options as shown below. At the final step I selected a main class to make my jar runnable. By clicking "Browse" you get the available main classes.