I am on macOS 11.6.7. My JAVA_HOME variable is set to ~/.zshenv as:
export JAVA_HOME=$(/usr/libexec/java_home)
My terminal output for both echo $JAVA_HOME and mvn --version are as follows:
<redacted> ~ % echo $JAVA_HOME
/Library/Java/JavaVirtualMachines/jdk-18.0.2.jdk/Contents/Home
<redacted>~ % mvn --version
The JAVA_HOME environment variable is not defined correctly,
this environment variable is needed to run this program.
I have attempted to source ~/.zshenv as well as restarting shell. The JAVA_HOME variable is read correctly even still. What am I missing? Are there other configuration files I have to check/set for Maven specifically?
Related
I am using linux subsystem with Debian 10. I installed Java 17 and set the Java homepath to jdk 17.
The JAVA_HOME Path ist still java-11, but this isnt even installed.
echo %JAVA_HOME% set set JAVA_HOME=/usr/lib/jvm/java-17-oracle echo %JAVA_HOME%
%JAVA_HOME% set set JAVA_HOME=/usr/lib/jvm/java-17-oracle echo %JAVA_HOME%
I tried to change the home variable permanently, but it does not work.
Well? Still exception
Downloaded java versions
installed java version
How can i change the Java_Home path permanently.
Thank you in advance
If you install JAVA through your distro's default package manager(for example I use Ubuntu so I install Java(the OpenJDK version of Java) through APT [so the command to install OpenJDK's Java17 for example is sudo apt install openjdk-17-jdk]). Regardless of the version you install via APT, Java will be installed in the /usr/lib/jvm/{java-version-distribution-architecture} path. So, the easiest way to set the JAVA_HOME variable is to edit your .bashrc file and add this inside it using your text editor:
JAVA_HOME=/usr/lib/jvm/java-17-openjdk-amd64
export JAVA_HOME
PATH=$PATH:JAVA_HOME/bin
export PATH
Save and close the file after adding this information inside it. Then run the command source .bashrc(to stamp you changes) and the JAVA_HOME will be permanently set. Also note that the .bashrc file is located in the ~/.bashrc(your home). You can confirm the JAVA_HOME variable by using the command echo $JAVA_HOME on the terminal and it should show you the path you just set. I hope this helps
I installed maven in Ubuntu 22.04 and I am getting the next error when I try a mvn clean install command:
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
My JAVA_HOME has the next value:
echo $JAVA_HOME
/usr/lib/jvm/java-11-openjdk-amd64/bin/
Am I missing something?
Thanks!
JAVA_HOME needs to be one level up - /usr/lib/jvm/java-11-openjdk-amd64
When I am trying to set environment variables for mvn in MAC, I am able to set for one session but if I open another terminal and try mvn -version, it doesn't work.
Commands I followed:
vi $HOME/.z_profile
--Added this path in .z_profile file
export M2_HOME=/Users/namangupta/Downloads/apache-maven-3.6.3
export PATH=$PATH:$M2_HOME/bin/
source .z_profile
mvn -version
--Output:
Apache Maven 3.6.3 (cecedd343002696d0abb50b32b541b8a6ba2883f)
Maven home: /Users/namangupta/Downloads/apache-maven-3.6.3
Java version: 15, vendor: Oracle Corporation, runtime: /Library/Java/JavaVirtualMachines/jdk-15.jdk/Contents/Home
Default locale: en_IN, platform encoding: UTF-8
OS name: "mac os x", version: "10.15.7", arch: "x86_64", family: "mac"
After these steps when I open another terminal and try mvn -version I get
zsh: mvn cmd not found and on running printenv the path gets reset. Can anyone please tell me where I am wrong in setting the path?
For MacOS Catolina or higher version, since you have zsh instead of bash, you will need to change the path to another file instead of .bash_profile (used for previous versions) as shown below:
--to open the file
nano ~/.zshenv
--paste the following lines and append path for anything else if you want to, just ensure you enter the proper version u have
export JAVA_HOME="/Library/Java/JavaVirtualMachines/jdk1.8.0_291.jdk/Contents/Home"
export M2_HOME="/Users/namangupta/Workspace/setup_files/mvn/apache-maven-3.8.1"
export PATH=$PATH:$M2_HOME/bin:$JAVA_HOME/bin
--save the file
Ctrl+x, then 'Y' to save and then Enter
--to save the environment variables path
source .zshenv
And you are good to go. To check you can try printenv to check or mvn -version or java -version or echo $PATH
For MacOS Monterey (version 12.5)
-> open ~/.zshenv
->Add following to .zshenv File
export JAVA_HOME="/Library/Java/JavaVirtualMachines/jdk1.8.0_291.jdk/Contents/Home"
export M2_HOME="/Users/namangupta/Workspace/setup_files/mvn/apache-maven-3.8.1"
export PATH=$PATH:$M2_HOME/bin:$JAVA_HOME/bin
->Save file
->mvn -version
This solution worked for me.Thank you :)
You had everything right except the filename - it should be $HOME/.zprofile (with no underscore). That's why it worked when you manually sourced from .z_profile, but didn't work when starting a new terminal.
I know there are a lot of questions/answers about this question, but all were failed in my case.
I installed jdk 1.8 and then installed maven3.6.3, java runs well but mvn command didn't work, see my command output and env:
java -version
java version "1.8.0_251"
Java(TM) SE Runtime Environment (build 1.8.0_251-b08)
Java HotSpot(TM) 64-Bit Server VM (build 25.251-b08, mixed mode)
mvn -v
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
mac OS version: 10.15.5
echo $JAVA_HOME
/Library/Java/JavaVirtualMachines/jdk1.8.0_251.jdk/Contents/Home
echo $PATH
/usr/local/apache-maven-3.6.3/bin:/bin:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin:.
config in ~/.bash_profile
export M2_HOME=/usr/local/apache-maven-3.6.3
PATH=$M2_HOME/bin:$JAVA_HOME/bin:$PATH:.
#Mac OSX 10.15.5 or later version need this configure
export JAVA_HOME=$(/usr/libexec/java_home)
export CLASSPATH=$JAVA_HOME/lib/tools.jar:$JAVA_HOME/lib/dt.jar:.
export PATH
I also source ~./bash_profile to make configure effective.
I would suggest revert all the changes you have made in ~/.bash_profile. Checkout my way to make the maven work:
Download latest maven zip package apache-maven-<version>-bin.zip from Apache maven download page.
Unzip it to any place, e.g: ~/Develop/apache-maven-3.6.0
Create a link with command sudo ln -sf ~/Develop/apache-maven-3.6.0/bin/mvn /usr/local/bin/mvn (change version number per your case, if the local bin folder missing, just create it mkdir -p /usr/local/bin).
Check the installation mvn --version
Hope it works for you.
After hundreds updating configure file, now mvn -version can works, share my update and hope it can help you.
fill or update vim ~/.mavenrc(in the beginning, this file isn't exist)
# my MacOS is 10.15+
export Java_HOME=$(/usr/libexec/Java_home)
and then source ~/.mavenrc to let system env effective.
Summary：for my mac system, seems maven couldn't get JAVA_HOME from .bash_profile or .profile, so if you confirm your JAVA_HOME is set correctly and MAVEN_HOME configured, then you can have a try in this way.
java is installed at this path
$ which java
/usr/bin/java
mvn -version is giving this error
$ 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
I have tried some of the solutions that were available online, but those don't work for me. Some of those solutions suggested adding
$export JAVA_HOME = /usr/libexec/java_home
or
$export JAVA_HOME = $(/usr/libexec/java_home)
to below files
~/.bashrc
~/.bash_profile
~/.profile
Also when I try to execute one shell command, it shows me error like
Error: JAVA_HOME is not defined correctly.
CARBON cannot execute /System/Library/Frameworks/JavaVM.framework/Versions/CurrentJDK/Home/bin/java
After struggling for almost a day, I found out that maven is not reading the $JAVA_HOME from either of
~/.bashrc
~/.bash_profile
~/.profile
but it reads $JAVA_HOME from ~/.mavenrc
So finally, when I added
export JAVA_HOME=/Library/Java/JavaVirtualMachines/jdk1.8.0_141.jdk/Contents/Home
in ~/.mavenrc then got output
mvn -v
Java HotSpot(TM) 64-Bit Server VM warning: ignoring option MaxPermSize=1024m; support was removed in 8.0
Apache Maven 3.5.0 (ff8f5e7444045639af65f6095c62210b5713f426; 2017-04-03T15:39:06-04:00)
Maven home: /usr/local/Cellar/maven/3.5.0/libexec
Java version: 1.8.0_141, vendor: Oracle Corporation
Java home: /Library/Java/JavaVirtualMachines/jdk1.8.0_141.jdk/Contents/Home/jre
Default locale: en_CA, platform encoding: UTF-8
OS name: "mac os x", version: "10.12.6", arch: "x86_64", family: "mac"
To fixed it, update the JAVA_HOME like following :
$ vim .bash_profile
export JAVA_HOME=$(/usr/libexec/java_home)
$ source .bash_profile
Run Maven again :
$ mvn -version
maven reads JAVA_HOME from ~/.mavenrc. Add path for JAVA_HOME to ~./mavenrc and source it.
$ vim ~/.mavenrc
export JAVA_HOME=$(/usr/libexec/java_home)
$ source .mavenrc
On Ubuntu
I faced a similar problem. I configured $JAVA_HOME in /etc/environment
like JAVA_HOME=PATH_TO_JDK for example JAVA_HOME=/home/max/jdk1.8.0_144
Careful with
White space after path declaration JAVA_HOME=/home/max/jdk1.8.0_144[[_NO_WHITE_SPACE_AFTER_DECLARATION]]
Don't put any quotes, e.g. JAVA_HOME="/home/max/jdk1.8.0_144"
Don't put /bin, e.g. JAVA_HOME=/home/max/jdk1.8.0_144/bin <- This is wrong
Please check once there should be no ';' in JAVA_HOME value, if there is semicolon then it would show above error.
I had
JAVA_HOME
set but did not export it and maven was not picking up the correct JAVA_HOME.
Once I exported JAVA_HOME then it got resolved. Do not forget to export JAVA_HOME so that the variable is available to child processes (UNIX* like OS)
export JAVA_HOME=/Library/Java/JavaVirtualMachines/amazon-corretto-11.jdk/Contents/Home