JAVA_HOME should point to a JDK not a JRE

问题:

I am trying to set up maven for my project and I am getting this error

"JAVA_HOME should point to a JDK not a JRE"

I know there are already similar question but it did not work. How can I point JAVA_HOME to JDK in windows. I am using IntelliJ IDEA

回答1:

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

回答2:

I am going through the same process on Mac OSX. I installed the latest JDK, then installed Maven. Someone suggested I set the JAVA_HOME variable so I pointed it to the JDK installation folder. When running Maven mvn compile exec:java I received the same error NB: JAVA_HOME should point to a JDK not a JRE.

All I did was unset the JAVA_HOME variable and it worked.

回答3:

do it thru cmd -

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

回答4:

if You have 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 Error so do one thing ...type C:>dir/x and you will see the PROGRA~1 or May ~2 and After int Environment Variable Chang The JAVA_HOME Dir Like This JAVA_HOME:- C:\PROGRA~1\Java\jdk1.8.0_144\ also Set In Path :-%JAVA_HOME%\bin; And it Works

回答5:

In IntelliJ IDEA go to File>Project Structure>SDK>JDK home path. Copy it and then go to My Computer>Advanced Settings>Environment Variables Change the JAVA_HOME path to what you have copied. Then open new cmd, and try mvn -v

It worked for me !!!

回答6:

I met the same problem. (Window 10 environment) I solved it by deleting the JAVA_HOME="C:\Program Files\Java\jdk1.8.0_161\bin" in the User Variables instead of adding to the System Variables directly.

Then I test that editing JAVA_HOME="C:\Program Files\Java\jdk1.8.0_161\" worked too. When I run "mvn -version" in command prompt window, it shows "Java home: C:\Program Files\Java\jdk1.8.0_161\jre".

In conclusion, I guess the JAVA_HOME shouldn't include bin directory.

回答7:

Add JAVA_HOME = C:\Program Files\Java\jdk(version) in User variable, it works for me. For me, it doesn't work with bin and even if I create JAVA_HOME in system variable

回答8:

just remove the semicolon at the end of JAVA_HOME variable's value.

set JAVA_HOME as C:\Program Files\Java\jdk1.8.0_171

It worked for me.

回答9:

I have spent 3 hours for solving the error 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

Finally I got the solution. Please set the JAVA_HOME value by Browse Directory button/option. Try to find the jdk path. Ex: C:\Program Files\Java\jdk1.8.0_181

It will remove the semicolon issue. :D

回答10:

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%

I did not check if the addition or removal of bin changes the result but nonetheless this works for me.

回答11:

Assuming that Java JDK is installed in C:\Windows\System32, add this directory to your Path environment variable and it should work

回答12:

In addition to sovas' response on how to add the JAVA_HOME variable, if it was working before and stopped working, ensure that the path still exists. I updated Java recently which deleted the old version, invalidating my JAVA_HOME environment variable.

回答13:

I had this issue but for Mac Os, I set the JAVA_HOME variable in the .bash_profile to be export JAVA_HOME=$(/usr/libexec/java_home) then save. After that ran source ~/.bash_profile finally mvn -version and it fixed the issue. Hope that helps