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Installing the software packages detailed below requires several common system-wide utilities. They can be installed by running:

sudo apt-get install wget

Java Development Kit (JDK) & Java Runtime Environment (JRE)

In order to get the proprietary Oracle Java 7 packages, run the following:

sudo apt-get install python-software-properties (This may be necessary to use the add-apt-repository command)

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sudo add-apt-repository ppa:webupd8team/java

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sudo apt-get update

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sudo apt-get install oracle-java7-installer

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sudo update-java-alternatives -s java-7-oracle

update-alternatives: error: no alternatives for mozilla-javaplugin.so.

To set the JAVA_HOME environment variable for the installed JDK:

export JAVA_HOME=/usr/lib/jvm/java-7-oracle

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echo "export JAVA_HOME=$JAVA_HOME" | sudo tee -a /etc/environment

To obtain the Java Cryptography Extension (JCE) Unlimited Strength Jurisdiction Policy Files required for unlimited strength encryption used in DCDT, run either of the following sets of commands:

sudo apt-get install oracle-java7-unlimited-jce-policy

OR

wget --no-cookies --header "Cookie: oraclelicense=accept-securebackup-cookie" http://download.oracle.com/otn-pub/java/jce/7/UnlimitedJCEPolicyJDK7.zip

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sudo apt-get install unzip (if not already installed)

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unzip UnlimitedJCEPolicyJDK7.zip

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sudo cp UnlimitedJCEPolicy/local_policy.jar $JAVA_HOME/jre/lib/security

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sudo cp UnlimitedJCEPolicy/US_export_policy.jar $JAVA_HOME/jre/lib/security

Git CLI

Run the following:

sudo apt-get install git

Mercurial CLI

Run the following:

sudo apt-get install mercurial

Apache Maven

Run the following:

sudo apt-get install maven

Apache Tomcat

Run the following:

sudo apt-get install tomcat7 tomcat7-admin