Appendix A. Prerequisite Software
A.1. Install Open JDK on Red Hat Linux
This topic covers the steps to install Open JDK on RedHat Linux.
- Subscribe to the Base Channel Obtain the OpenJDK from the RHN base channel. (Your installation of Red Hat Enterprise Linux is subscribed to this channel by default.)
- Install the Package. Use the yum utility to install OpenJDK:
yum install java-1.7.0-openjdk-devel
- Verify that Open JDK is now your system default. You can ensure the correct JDK is set as the system default by following the steps below.
- As a root user, run the alternatives command for java:
/usr/sbin/alternatives --config java
- Select
/usr/lib/jvm /jre-1.7.0-openjdk/bin/java
. - Apply the same for javac:
/usr/sbin/alternatives --config javac
- Select
/usr/lib/jvm /java-1.7.0-openjdk/bin/java.
Result
Open JDK is installed successfully on your machine.
A.2. Install Maven
Prerequisites
The following software must be installed:
- An archiving tool for extracting the contents of compressed files.
- Open JDK.
Procedure A.1. Install Maven
Download Maven.
- Enter http://maven.apache.org/download.cgi in the address bar of a browser.
- Download
apache-maven-3.0.5
ZIP file and save it to your hard drive.
Install and configure Maven.
On Red Hat Enterprise Linux
- Extract the ZIP archive to the directory where you wish to install Maven.
- Open a terminal.
- Add the M2_HOME environment variable by entering the following command:
export M2_HOME=/usr/local/apache-maven/apache-maven-3.0.x
- Add the M2 environment variable by entering the following command:
export M2=$M2_HOME/bin
- Add the M2 environment variable to your path by entering the following command:
export PATH=$M2:$PATH
- Make sure that JAVA_HOME is set to the location of your JDK. For example:
export JAVA_HOME=/usr/lib/jvm/java-1.7.0-openjdk.x86_64
- Make sure that $JAVA_HOME/bin is in your PATH environment variable.
- Run the following command to verify that Maven is installed successfully on your machine:
mvn --version
On Microsoft Windows
- Extract the ZIP archive to the directory where you wish to install Maven. The subdirectory
apache-maven-3.0.x
is created from the archive. - Press Start+Pause|Break. The System Properties dialog box is displayed.
- Click the Advanced tab and click Environment Variables.
- Under System Variables, select Path.
- Click Edit and add the two Maven paths using a semicolon to separate each entry.
- Add the M2_HOME variable and set the path to
C:\Program Files\Apache Software Foundation\apache-maven-3.0.X
. - Add the M2 variable and set the value to %M2_HOME%\bin.
- Update or create the Path environment variable:
- Add the %M2% variable to allow Maven to be executed from the command line.
- Add the variable %JAVA_HOME%\bin to set the path to the correct Java installation.
- Click OK to close all the dialog boxes including the System Properties dialog box.
- Open Windows command prompt and run the following command to verify that Maven is installed successfully on your machine:
mvn --version
Result
Maven is successfully installed and configured on your machine.