maven error: How can I point JAVA_HOME environment variable to JDK instead of JRE?

Question

Intellij IDEA on windows 10 is producing the error while trying to run my maven project.

the following output show while running: C:\> mvn -version

The JAVA_HOME environment variable is not defined correctly

This environment variable is needed to run this program

NB: JAVA_HOME should point to a JDK not a JRE

What would be the proper solution of this problem?

Answer 1

Welcome to kodlogs,

DId you try installing Java Development Kit which is known as JDK at all?

If you did, you can now try setting your system environment variables to achieve the solution.

GOTO Windows Search option and type -

"Edit the system environment variables"

CLICK on "Environment Variables" at the bottom of the popup window.

Focus on System Variables tab. Click on New button -> 

on New System Variable: set

Variable name: JAVA_HOME

Variable value: C:\Program Files\Java\jdk1.8.2\

 

Note that you may face trouble if you include your \bin folder.

 

You can also set it through your command prompt window:

echo %JAVA_HOME% set set JAVA_HOME=C:\Program Files\Java\jdk1.8.2 echo %JAVA_HOME%

 

If that helps upvote my answer. Thanks.

 

Answer 2

Get rid of the trailing backslash and especially the trailing semi-colon:

C:\Program Files\Java\jdk1.8.0_91

By the way, you can display the current setting with the shorthand of typing "set" at a command prompt followed by the minimal number of characters needed, i.e. on my system:

set j
JAVA_HOME=C:\Program Files\Java\jdk1.8.0_144

Control Panel -> System and Security -> System -> Advanced system settings -> Advanced -> Environment Variables -> New System Variable

unset the JAVA_HOME variable and it worked.

do it through cmd –

echo %JAVA_HOME% set set JAVA_HOME=C:\Program Files\Java\jdk1.8.0 echo %JAVA_HOME%

Make sure that you do NOT have a JRE path, if you have delete it.

1. Add JAVA_HOME in the System variable. Variable value: C:\Program Files\Java\jdk-10.0.2 (location of JDK without bin)

2. Add M2 in the System variable. Variable value: C:\dev\maven\apache-maven-3.5.4\bin (location of maven with bin)

3. Add M2_HOME in the System variable. Variable value: C:\dev\maven\apache-maven-3.5.4 (location of maven without bin)

4. Add %JAVA_HOME% and %M2% in Path System Variable or C:\Program Files\Java\jdk-10.0.2 and C:\dev\maven\apache-maven-3.5.4\bin --> For windows 10, just add the location. For other version, at the end of the Variable Value field add semicolon then the location Ex: ;%JAVA_HOME%;%M2%