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Editorial Team
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Asked: 2026-06-04T19:15:19+00:00

I tried to mvn install and got this message: Compilation failure Unable to locate

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I tried to mvn install and got this message:

Compilation failure
Unable to locate the Javac Compiler in:
  /usr/lib/jvm/java-7-openjdk-amd64/jre/../lib/tools.jar
Please ensure you are using JDK 1.4 or above and
not a JRE (the com.sun.tools.javac.Main class is required).
In most cases you can change the location of your Java
installation by setting the JAVA_HOME environment variable.

Well, there is an open jdk, I also downloaded another one. I tried to point JAVA_HOME to both, now it is set:

JAVA_HOME=/usr/lib/jvm/jdk1.7.0_03
export JAVA_HOME
PATH=$PATH:$JAVA_HOME/bin
export PATH

I also tried to choose one of those open with sudo update-alternatives --config java but got the same error with different jdk versions in it.

How can I fix that? Thanks in advance.

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1 Answer

  1. Editorial Team

    it seems like your PATH is not picked up correctly… does the output of “echo $PATH” contain the directory where javac resides?
    I would suggest following:

    open terminal and do an:

    export JAVA_HOME=/usr/lib/jvm/jdk1.7.0_03
export PATH=$PATH:$JAVA_HOME/bin
javac -version
which javac

    if javac -version still does not work create a symlink in /usr/local/bin pointing to your javac binary:

    cd /usr/local/bin
ln -s /usr/lib/jvm/jdk1.7.0_03/bin/javac javac

    this should get you up an running…
    an alternative is to try setting up java via your package management system (e.g. “apt-get install java” or sth. similar)

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