Apache Maven first project for "archetypeArtifactId=maven-archetype-quickstart"

1. Apache Maven:
   "Apache Maven is a software project management and comprehension tool. Based on the concept of a project object model (POM), Maven can manage a project's build, reporting and documentation from a central piece of information."
2. Ubuntu install:
   

    
    $ sudo apt-get install maven
   

3. Where is it and version:
   

    
    $ which mvn
    /usr/bin/mvn
   
    $ mvn -v
    Apache Maven 3.0.4
    Maven home: /usr/share/maven
    Java version: 1.6.0_31, vendor: Sun Microsystems Inc.
    Java home: /usr/lib/jvm/java-6-openjdk-amd64/jre
    Default locale: en_US, platform encoding: UTF-8
    OS name: "linux", version: "3.2.0-65-generic", arch: "amd64", family: "unix"
   

4. Create first project:
   

    
    $ mvn \
    archetype:generate \
    -DarchetypeArtifactId=maven-archetype-quickstart \
    -DinteractiveMode=false \
    -DgroupId=com.myMaven.app \
    -DartifactId=HelloMaven
   
    [INFO] Scanning for projects...
    (Downloading packages...)
    [INFO]                                                                         
    [INFO] ------------------------------------------------------------------------
    [INFO] Building Maven Stub Project (No POM) 1
    [INFO] ------------------------------------------------------------------------
    [INFO] 
    [INFO] >>> maven-archetype-plugin:2.2:generate (default-cli) @ standalone-pom >>>
    [INFO] 
    [INFO] <<< maven-archetype-plugin:2.2:generate (default-cli) @ standalone-pom <<<
    [INFO] 
    [INFO] --- maven-archetype-plugin:2.2:generate (default-cli) @ standalone-pom ---
    (Downloading packages...)
    [INFO] Generating project in Batch mode
    (Downloading packages...)
    [INFO] ----------------------------------------------------------------------------
    [INFO] Using following parameters for creating project from Old (1.x) Archetype: maven-archetype-quickstart:1.0
    [INFO] ----------------------------------------------------------------------------
    [INFO] Parameter: groupId, Value: com.myMaven.app
    [INFO] Parameter: packageName, Value: com.myMaven.app
    [INFO] Parameter: package, Value: com.myMaven.app
    [INFO] Parameter: artifactId, Value: HelloMaven
    [INFO] Parameter: basedir, Value: /home/linst/ws/study/maven
    [INFO] Parameter: version, Value: 1.0-SNAPSHOT
    [INFO] project created from Old (1.x) Archetype in dir: /home/linst/ws/study/maven/HelloMaven
    [INFO] ------------------------------------------------------------------------
    [INFO] BUILD SUCCESS
    [INFO] ------------------------------------------------------------------------
    [INFO] Total time: 3:05.835s
    [INFO] Finished at: Mon Sep 29 11:28:32 CST 2014
    [INFO] Final Memory: 9M/239M
    [INFO] ------------------------------------------------------------------------
   

5. About groupId, artifactId and archetypeArtifactId:
   

    
    groupId: This element indicates the unique identifier of the organization or group that created the project.
    artifactId: This element indicates the unique base name of the primary artifact being generated by this project.
    archetypeArtifactId: The archetype's artifactId.
   

   
   http://maven.apache.org/archetype/maven-archetype-plugin/generate-mojo.html#archetypeCatalog
6. The generated tree and files and pom.xml:
   

    
    .
    └── HelloMaven
        ├── pom.xml
        └── src
            ├── main
            │   └── java
            │       └── com
            │           └── myMaven
            │               └── app
            │                   └── App.java
            └── test
                └── java
                    └── com
                        └── myMaven
                            └── app
                                └── AppTest.java
   
    12 directories, 3 files
   

    
    
      4.0.0
      com.myMaven.app
      HelloMaven
      jar
      1.0-SNAPSHOT
      HelloMaven
      http://maven.apache.org
      
        
          junit
          junit
          3.8.1
          test
        
      
    
   

7. Compile:
   

    
    $ cd HelloMaven/
    $ mvn compile
    [INFO] Scanning for projects...
    [INFO]                                                                         
    [INFO] ------------------------------------------------------------------------
    [INFO] Building HelloMaven 1.0-SNAPSHOT
    [INFO] ------------------------------------------------------------------------
    (Downloading packages...)
    [INFO] 
    [INFO] --- maven-resources-plugin:2.3:resources (default-resources) @ HelloMaven ---
    [WARNING] Using platform encoding (UTF-8 actually) to copy filtered resources, i.e. build is platform dependent!
    [INFO] skip non existing resourceDirectory /home/linst/ws/study/maven/HelloMaven/src/main/resources
    [INFO] 
    [INFO] --- maven-compiler-plugin:2.0.2:compile (default-compile) @ HelloMaven ---
    (Downloading packages...)
    [INFO] Compiling 1 source file to /home/linst/ws/study/maven/HelloMaven/target/classes
    [INFO] ------------------------------------------------------------------------
    [INFO] BUILD SUCCESS
    [INFO] ------------------------------------------------------------------------
    [INFO] Total time: 13.615s
    [INFO] Finished at: Mon Sep 29 15:02:17 CST 2014
    [INFO] Final Memory: 8M/239M
    [INFO] ------------------------------------------------------------------------
   

   .
   ├── pom.xml
   ├── src
   │   ├── main
   │   │   └── java
   │   │       └── com
   │   │           └── myMaven
   │   │               └── app
   │   │                   └── App.java
   │   └── test
   │       └── java
   │           └── com
   │               └── myMaven
   │                   └── app
   │                       └── AppTest.java
   └── target
       └── classes
           └── com
               └── myMaven
                   └── app
                       └── App.class
   
   16 directories, 4 files
   

8. Run:
   

    
    $ mvn exec:java -Dexec.mainClass=com.myMaven.app.App
    [INFO] Scanning for projects...
    (Downloading packages...)
    [INFO]                                                                         
    [INFO] ------------------------------------------------------------------------
    [INFO] Building HelloMaven 1.0-SNAPSHOT
    [INFO] ------------------------------------------------------------------------
    [INFO] 
    [INFO] --- exec-maven-plugin:1.3.2:java (default-cli) @ HelloMaven ---
    (Downloading packages...)
    [WARNING] Warning: killAfter is now deprecated. Do you need it ? Please comment on MEXEC-6.
    Hello World!@@!
    [INFO] ------------------------------------------------------------------------
    [INFO] BUILD SUCCESS
    [INFO] ------------------------------------------------------------------------
    [INFO] Total time: 50.464s
    [INFO] Finished at: Mon Sep 29 15:15:47 CST 2014
    [INFO] Final Memory: 7M/239M
    [INFO] ------------------------------------------------------------------------
   

9. References:
   http://maven.apache.org/index.html
   http://maven.apache.org/guides/getting-started/index.html
   http://maven.apache.org/pom.html
   http://www.codedata.com.tw/java/understanding-gradle-2-maven/ [Chinese]
   http://mkn939.blogspot.tw/2013/03/maven-hellomaven-maven-step-by-step.html [Chinese]