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JAVA-DEV-CONFIG

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Readme Content

1. UBUNTU BASED

1.I. JAVA JDK

  • Uninstall the open-jdk:

    sudo apt-get update && sudo apt-get remove openjdk*

  • Get JAVA JDK from oracle and decompress:

    tar -zxvf jdk*.tar.gz

  • Place it into the folder:

    sudo mkdir /usr/lib/jvm/jdk-21.0.3/
sudo mv jdk*/ /usr/lib/jvm/jdk-21.0.3/

  • Install the java alternatives:

    sudo update-alternatives --install "/usr/bin/java" "java" "/usr/lib/jvm/jdk-21.0.3/bin/java" 0
sudo update-alternatives --set java /usr/lib/jvm/jdk-21.0.3/bin/java

  • Install the javac alternatives:

    sudo update-alternatives --install "/usr/bin/javac" "javac" "/usr/lib/jvm/jdk-21.0.3/bin/javac" 0
sudo update-alternatives --set javac /usr/lib/jvm/jdk-21.0.3/bin/javac

  • In /etc/environment:

    sudo nano /etc/environment
    • Define JAVA_HOME: 
          PATH="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/snap/bin"
    JAVA_HOME="/usr/lib/jvm/jdk-21.0.3"

  • Refresh the environment:

    source /etc/environment

  • Check Java compiler version:

    javac -version
    • Correct output example: 
      javac 21.0.3

  • Check Java VM version:

    java -version
    • Correct output example: 
      java version "21.0.3" 2024-04-16 LTS
Java(TM) SE Runtime Environment (build 21.0.3+7-LTS-152)
Java HotSpot(TM) 64-Bit Server VM (build 21.0.3+7-LTS-152, mixed mode, sharing)

1.II APACHE MAVEN

  • Download Apache Maven and decompress:

    tar -zxvf apache-maven-*.tar.gz

  • Install Apache Maven on this folder:

     sudo mkdir /opt/apache-maven
 sudo chown user:user /opt/apache-maven/
 mv apache-maven-*/* /opt/apache-maven/

  • In /etc/environment:

    sudo nano /etc/environment
    • Define MAVEN_HOME: 
          PATH="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/snap/bin:/opt/apache-maven/bin"
    JAVA_HOME="/usr/lib/jvm/jdk-21.0.3"
    MAVEN_HOME="/opt/apache-maven"

  • Refresh the environment:

    source /etc/environment

  • Check Maven version:

    mvn --version
    • Correct output example: 
      Apache Maven 3.9.6 (bc0240f3c744dd6b6ec2920b3cd08dcc295161ae)
Maven home: /opt/apache-maven Java version: 21.0.3, vendor: Oracle Corporation,
runtime: /usr/lib/jvm/jdk-21.0.3
Default locale: es_ES, platform encoding: UTF-8
OS name: "linux", version: "6.8.0-35-generic", arch: "amd64", family: "unix"

1.III APACHE TOMCAT

  • Download Apache Tomcat and decompress:

    tar -zxvf apache-tomcat-*.tar.gz

  • Install Apache Tomcat on this folder:

    sudo mkdir /opt/apache-tomcat
sudo chown user:user /opt/apache-tomcat/
mv apache-tomcat-*/* /opt/apache-tomcat/

  • In /etc/environment:

    sudo nano /etc/environment
    • Define CATALINA_HOME: 
          PATH="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/snap/bin:/opt/apache-maven/bin:/opt/apache-tomcat/bin"
    JAVA_HOME="/usr/lib/jvm/jdk-21.0.3"
    MAVEN_HOME="/opt/apache-maven"
    CATALINA_HOME="/opt/apache-tomcat"

  • Refresh the environment:

    source /etc/environment

  • Check Maven version:

    catalina.sh version
    • Correct output example: 
      Using CATALINA_BASE:   /opt/apache-tomcat
Using CATALINA_HOME:   /opt/apache-tomcat
Using CATALINA_TMPDIR: /opt/apache-tomcat/temp
Using JRE_HOME:        /usr/lib/jvm/jdk-21.0.3
Using CLASSPATH:       /opt/apache-tomcat/bin/bootstrap.jar:/opt/apache-tomcat/bin/tomcat-juli.jar
Using CATALINA_OPTS:   
Server version: Apache Tomcat/10.1.25
Server built:   Jun 14 2024 19:31:59 UTC
Server number:  10.1.25.0
OS Name:        Linux
OS Version:     6.8.0-35-generic
Architecture:   amd64
JVM Version:    21.0.3+7-LTS-152
JVM Vendor:     Oracle Corporation

2. WINDOWS BASED

2.I. JAVA JDK

2.II. APACHE MAVEN

2.III. APACHE TOMCAT