Friday, August 17, 2012

Install Maven Tool on Windows 7

Maven is a Java tool, so you must have Java installed in order to proceed. More precisely, you need a Java Development Kit (JDK), the Java Runtime Environment (JRE) is not sufficient.

Unzip the distribution archive, i.e. to the directory you wish to install Maven 3.0.4. (Please download the latest Maven installation file from site). My instructions assume you chose C:\Program Files\Apache Software Foundation. The subdirectory apache-maven-3.0.4 will be created from the archive.

Add the M2_HOME environment variable by opening up the system properties (WinKey + Pause), selecting the "Advanced" tab, and the "Environment Variables" button, then adding the M2_HOME variable in the user variables with the value C:\Program Files\Apache Software Foundation\apache-maven-3.0.4. Be sure to omit any quotation marks around the path even if it contains spaces. Note: For Maven < 2.0.9, also be sure that the M2_HOME doesn't have a '\' as last character.
In the same dialog, add the M2 environment variable in the user variables with the value %M2_HOME%\bin.

Optional: In the same dialog, add the MAVEN_OPTS environment variable in the user variables to specify JVM properties, e.g. the value -Xms256m -Xmx512m. This environment variable can be used to supply extra options to Maven.

In the same dialog, update/create the Path environment variable in the user variables and prepend the value %M2% to add Maven available in the command line.
In the same dialog, make sure that JAVA_HOME exists in your user variables or in the system variables and it is set to the location of your JDK, e.g. C:\Program Files\Java\jdk1.5.0_02 and that%JAVA_HOME%\bin is in your Path environment variable.

Open a new command prompt (Winkey + R then type cmd) and run mvn --version to verify that it is correctly installed.

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