Ndtyjky

[I got it, the tag should be modified to "jar". Fixed!]

I've tried this on both ubuntu and mac, doesn't work. I've Apache Maven 3.5.2 and jdk 1.8

(1) create a directory called mytest and enter:

mkdir mytest

cd mytest

(2) create folder structure of src/main/java

mkdir -p src/main/java

(3) create pom file:

<?xml version="1.0" encoding="UTF-8"?>

<project xmlns="http://maven.apache.org/POM/4.0.0"

        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

        xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">

    <modelVersion>4.0.0</modelVersion>



    <groupId>org.mytest</groupId>

    <artifactId>mytest</artifactId>

    <packaging>pom</packaging>

    <version>1.0-SNAPSHOT</version>

</project>

and a java file of "./src/main/java/m.java"

public class m{

    public static void main(String args){

        System.out.println("hw");

    }

} 

(4) Now the structure is like:

.

./src

./src/main

./src/main/java

./src/main/java/m.java

./pom.xml

(5) mvn clean compile:

$ mvn clean compile

[INFO] Scanning for projects...

[INFO] 

[INFO] ------------------------------------------------------------------------

[INFO] Building mytest 1.0-SNAPSHOT

[INFO] ------------------------------------------------------------------------

[INFO] 

[INFO] --- maven-clean-plugin:2.5:clean (default-clean) @ mytest ---

[INFO] ------------------------------------------------------------------------

[INFO] BUILD SUCCESS

[INFO] ------------------------------------------------------------------------

[INFO] Total time: 0.271 s

[INFO] Finished at: 2018-11-10T01:19:27-08:00

[INFO] Final Memory: 7M/188M

[INFO] ------------------------------------------------------------------------

From the screen print, no compilation is done. Check directory of "target", no class file generated.

Why this? I hope that when I have standard folder structure of src/main/java, then maven should automatically try to find the .java file and compile it into target/ folder right?

Did I miss anything?