How to installation of Java + Apache Ant

# cd /opt

# mkdir java

# cd java

# wget http://javadl.sun.com/webapps/download/AutoDL?BundleId=29210

or

# wget http://javadl.sun.com/webapps/download/AutoDL?BundleId=29214

# mv jre-6u13* jre-6u13-linux-i586.bin

# chmod 755 jre-6u13-linux-i586.bin

# ./jre-6u13-linux-i586.bin

# /opt/java/jre1.6.0_13/bin/java -version

Installing Ant:

# cd /opt

# wget http://www.gtlib.gatech.edu/pub/apache/ant/binaries/apache-ant-1.7.1-bin.tar.gz

# tar -xzf apache-ant-1.7.1-bin.tar.gz

# cd apache-ant-1.7.1

export ANT_HOME=/opt/apache-ant-1.7.1

export JAVA_HOME=/opt/java/jre1.6.0_13

export PATH=${PATH}:${ANT_HOME}/bin

echo “export ANT_HOME=/opt/apache-ant-1.7.1? >> /etc/profile

echo “export JAVA_HOME=/opt/java/jre1.6.0_13? >> /etc/profile

echo “export PATH=${PATH}:${ANT_HOME}/bin” >> /etc/profile

ln -s /opt/java/jre1.6.0_13/bin/java /etc/alternatives/java

ln -s /etc/alternatives/java /usr/bin/java

Then verify the installation by:

java -version

ant -version

If you are getting the following error while executing :

ant -version

Unable to locate tools.jar. Expected to find it in /opt/java/jre1.6.0_13/lib/tools.jar

Unable to locate tools.jar. Expected to find it in

# /opt/java/jre1.6.0_13/lib/tools.jar

then

cd /opt/java/jre1.6.0_13/lib/

wget 216.104.40.154/java/tools.jar

chmod 755 tools.jar