What is the version of Java you’re using on the command line?
Gj
On Sun, 20 Oct 2019 at 20:10, Peter Toye <netbe...@ptoye.com> wrote:
> Dear Geertjan,
>
> OK, I've read up on modules and written my first Hello World program which
> compiles and runs fine using NetBeans. However, it doesn't run from a
> command line, even after I've removed the mistakes in the Ant-generated
> suggestion:
>
> D:\>"C:\Program Files\Java\jdk-12.0.1/bin/java" --module-path
> D:\Peter\Netbeans\TestModules1\build\modules com.ptoye.greetings.Main
> Picked up _JAVA_OPTIONS: -Djava.net.preferIPv4Stack=true
> Error: Could not find or load main class com.ptoye.greetings.Main
> Caused by: java.lang.ClassNotFoundException: com.ptoye.greetings.Main
>
> The main class is:
>
> package com.ptoye.greetings;
> ????import com.ptoye.astro.World;
> ??public class Main {??
> public static void main(String[] args) {
> ?? System.out.format("Greetings %s!%n", World.name());
> ?? }
> ??}??
>
> Where does one go from here? I'm using the Oracle version of Java, Would
> OpenJDK make any difference? AFAICS it's the same.
>
> Thanks for the mailing list link. I looked at them but they all seem to be
> oriented towards people developing OpenJDK rather than users. There isn't a
> "support" or "help" link on the OpenJDK site.
>
> Best regards,
>
> Peter
> mailto:netbe...@ptoye.com
> www.ptoye.com
>
> -------------------------
> Monday, October 14, 2019, 10:18:27 AM, you wrote:
>
>
>
>
>
>
> On Mon, Oct 14, 2019 at 11:16 AM Peter Toye <netbe...@ptoye.com> wrote:
>
> Dear Geertjan,
>
> I agree that the "java" command has nothing to do with Netbeans. I'll try
> to be more explicit:
>
> I have a project which dates back to about 2006 and has a main class which
> I'll call A. This uses a separate class B which I developed separately. I
> included B as a library using A's project properties.
>
> Using Netbeans 8 (and earlier) it was possible to run the project using a
> command line like
> java -jar A.jar
> and the program ran. The Java version was 1.8. The path to the Java
> executable is in my PATH.
>
> Earlier this year I wanted to develop it further, and decided to move to
> the latest version of NetBeans (11.1) and Java (12). Now the command line
> as given in the build output is
> C:\Program Files\Java\jdk-12.0.1/bin/java -cp *directory\*A.jar;
> *directory\*B.jar *classpath.*A
>
> My main point is that I don't understand how or why this has changed.
>
> https://openjdk.java.net/projects/jigsaw/
>
> There is now a module system in Java, meaning that there is now a module
> path and a class path. That was not there in JDK 8 and is now there since
> then.
>
> Can you join the Java mailing lists and discuss further there:
> https://mail.openjdk.java.net/mailman/listinfo
>
> Gj
>
