I've recently set up an OSX machine and i have trouble getting Maven to pickup JAVA_HOME when running inside Eclipse.
I've done the following so far:
export JAVA_HOME=$(/usr/libexec/java_home)
-vm
/Library/Java/JavaVirtualMachines/jdk1.7.0_45.jdk/Contents/Home/bin/java
/etc/mavenrc
with echo JAVA_HOME=\
/usr/libexec/java_home -v 1.7` | sudo tee -a /etc/mavenrc`Working from the CLI everything seems as expected. java -version
prints:
java version "1.7.0_45"
Java(TM) SE Runtime Environment (build 1.7.0_45-b18)
Java HotSpot(TM) 64-Bit Server VM (build 24.45-b08, mixed mode)
echo $JAVA_HOME
prints:
/Library/Java/JavaVirtualMachines/jdk1.7.0_45.jdk/Contents/Home
mvn -v
prints:
Apache Maven 3.1.1 (0728685237757ffbf44136acec0402957f723d9a; 2013-09-17 17:22:22+0200)
Maven home: /usr/local/Cellar/maven/3.1.1/libexec
Java version: 1.7.0_45, vendor: Oracle Corporation
Java home: /Library/Java/JavaVirtualMachines/jdk1.7.0_45.jdk/Contents/Home/jre
Default locale: en_US, platform encoding: UTF-8
OS name: "mac os x", version: "10.9", arch: "x86_64", family: "mac"
Running mvn install
inside a project from the CLI works as well. However doing the same from within Eclipse fails with the following:
Failed to execute goal org.apache.maven.plugins:maven-javadoc-plugin:2.9.1:jar (attach-javadocs) on project suppress-warnings: MavenReportException: Error while creating archive: Unable to find javadoc command: The environment variable JAVA_HOME is not correctly set.
In Eclipse > Preferences > Java > Installed JREs
i'm seeing that JDK 7 with the same location as specified in JAVA_HOME
is set as default and also used for my project. Switching between the embedded Maven runtime or the external installation yields the same results.
Where or how do i have to set JAVA_HOME
so that a Maven process started from within Eclipse gets the right JAVA_HOME
location?
Type “ echo $JAVA_HOME ” command to check Java Home environment variable on Mac OS X. Success result should look like this:
Just to use in eclipse you can add this in Window -> Preferences -> Java -> Build Path -> Classpath Variables. Just add new variable with name MAVEN_HOME. But for executions you need to set in in Run/Debug configuration - probably that's what you need. is about executable file. MAVEN_HOME= which path ? I am using apache maven 3.0.4
To make the change take effect, run source .bash_profile command in the terminal, now you can echo JAVA_HOME and MAVEN_HOME ‘s value on the macOS terminal.
Set JAVA_HOME ( Mac ). First, all environment variable settings are saved in the current user’s .bash_profile file, this file is saved in the current user’s home directory. Run cd ~ in terminal to go to the current user home directory. Then execute ls -l .bash_profile to make sure the file exists.
The problem is that on Mac OSX, the environment variables defined in .bashrc
or .bash_profile
are only exported to terminal environments. A bundled GUI app like Eclipse does not see them, and consequently neither does any run configuration executed from Eclipse.
The solution is to create (if it does not exist) or edit a file /etc/launchd.conf
and add the following line to it:
setenv JAVA_HOME /Library/Java/JavaVirtualMachines/jdk1.7.0_51.jdk/Contents/Home
Of course, modified to your actual JAVA_HOME
value. (note that the trick commonly used in .bash_profile
with $(/usr/libexec/java_home)
does not work in launchd.conf
- or at least I couldn't get it to work)
After you have done this, you will need to reboot the machine. After reboot the M2E Maven run configurations will be able to see the JAVA_HOME
variable and execute correctly.
Edit: for a refinement of my answer, see also this answer: https://stackoverflow.com/a/23078977/451941
I cannot comment Jeen Broekstra answer because I am a novice :-(
His solution is good, it needs only to be improved a little bit.
In /etc/launchd.conf
it is sufficient to put the instruction
getenv JAVA_HOME
Then, in /etc/bashrc
export JAVA_HOME=`/usr/libexec/java_home`
Then, re-login (it not necessary to reboot ;-) and Eclipse works as expected w.r.t. Maven.
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