How to change maven java home

Question

I want to change maven java home which is open jdk with sun jdk  How can I do it    root ak-EasyNote-TM98    mvn -version Apache Maven 3 0 4 Maven home   usr share maven Java version  1 6 0 24  vendor  Sun Microsystems Inc  Java home   usr lib jvm java-6-openjdk-amd64 jre Default locale  tr TR  platform encoding  UTF-8 OS name   linux   version   3 2 0-34-generic   arch   amd64   family   unix   Edit    So sorry  I forgot to write the below code    root ak-EasyNote-TM98    java -version java version  1 7 0 07  Java TM  SE Runtime Environment  build 1 7 0 07-b10  Java HotSpot TM  64-Bit Server VM  build 23 3-b01  mixed mode    My java home default path is sun jdk already  But maven java home has pointed openjdk  I want to fix it only for maven

User · Answer

Appears to be a duplicate of https   askubuntu com questions 21131 how-to-correctly-remove-openjdk-and-jre-and-set-the-system-use-only-and-only-sun answer-21137 assuming that you are using Ubuntu     The key is to use the command sudo update-java-alternatives -s java-6-sun   Any commands that rely on javac will be affected and not just Maven

User · Answer

If you are dealing with multiple projects needing different Java versions to build  there is no need to set a new JAVA HOME environment variable value for each build  Instead execute Maven like   JAVA HOME  path to your jdk mvn clean install   It will build using the specified JDK  but it won t change your environment variable   Demo     mvn -v Apache Maven 3 6 0 Maven home   usr share maven Java version  11 0 6  vendor  Ubuntu  runtime   usr lib jvm java-11-openjdk-amd64 Default locale  en US  platform encoding  UTF-8 OS name   linux   version   4 15 0-72-generic   arch   amd64   family   unix     JAVA HOME  opt jdk1 8 0 201 mvn -v Apache Maven 3 6 0 Maven home   usr share maven Java version  1 8 0 201  vendor  Oracle Corporation  runtime   opt jdk1 8 0 201 jre Default locale  en US  platform encoding  UTF-8 OS name   linux   version   4 15 0-72-generic   arch   amd64   family   unix     export   grep JAVA HOME declare -x JAVA HOME   usr lib jvm java-11-openjdk-amd64

User · Answer

I am using Mac and none of the answers above helped me  I found out that maven loads its own JAVA HOME from the path specified in     mavenrc  I changed the content of the file to be  JAVA HOME  Library Java JavaVirtualMachines jdk1 8 0 45 jdk Contents Home  For Linux it will look something like  JAVA HOME  usr lib jvm java-8-oracle jre

User · Answer

Just set JAVA HOME env property

User · Answer

The best way to force a specific JVM for MAVEN is to create a system wide file loaded by the mvn script   This file is  etc mavenrc and it must declare a JAVA HOME environment variable pointing to your specific JVM   Example    export JAVA HOME  usr lib jvm java-1 8 0-openjdk-amd64   If the file exists  it s loaded   Here is an extract of the mvn script in order to understand       if   -f  etc mavenrc     then        etc mavenrc   fi    if   -f   HOME  mavenrc      then         HOME  mavenrc    fi   Alternately  the same content can be written in    mavenrc

User · Answer

Even if you install the Oracle JDK  your  JAVA HOME variable should refer to the path of the JRE that is inside the JDK root  You can refer to my other answer  to a similar question for more details

User · Answer

I have two Java versions on my Ubuntu server 14 04  java 1 7 and java 1 8    I have a project that I need to build using java 1 8    If I check my Java version using java -version  I get   java version  1 8 0 144    But when I did mvn -version I get   Java version  1 7 0 79  vendor  Oracle Corporation   To set the mvn version to java8  I do this   export JAVA HOME  usr lib jvm java-8-oracle jre    Then when I do mvn -version I get   Java version  1 8 0 144  vendor  Oracle Corporation

User · Answer

Great helps above  but if you having the similar environment like I did  this is how I get it to work    having a few jdk running  openjdk  oracle jdk and a few versions  install apache-maven via yum  package is apache-maven-3 2 1-1 el6 noarch   Edit this file  etc profile d apache-maven sh  such as the following  note that it will affect the whole system     cat  etc profile d apache-maven sh MAVEN HOME  usr share apache-maven M2 HOME  MAVEN HOME PATH  MAVEN HOME bin  PATH   change below to the jdk you want mvn to reference  JAVA HOME  usr java jdk1 7 0 40  export MAVEN HOME export M2 HOME export PATH export JAVA HOME

User · Answer

If you are in Linux  set JAVA HOME using syntax export JAVA HOME  lt path-to-java gt   Actually it is not only for Maven

[maven] How to change maven java home

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