Implemented Java Runtime installation

playbooks/roles/jenkins/tasks/java.yml

+---
+- name: Install httplib2
+  pip: name=httplib2
+
+- name: Create JDK dir
+  command: mkdir -p {{ jdk_root }}
+
+- name: Download Java
+  uri: url={{ jdk_download_url }}
+       creates=/var/tmp/{{ jdk_archive }} 
+       dest=/var/tmp
+       HEADER_Cookie={{ jdk_cookie_header }}
+
+- name: Unpack Java
+  command: tar zxvf /var/tmp/{{ jdk_archive }} -C {{jdk_root}} 
+           creates={{ jdk_root }}/{{ jdk_folder }}
+  register: jdk_installed
+
+- name: Install java command
+  command: update-alternatives --install 
+           /usr/bin/java java 
+           {{ jdk_root }}/{{ jdk_folder }}/bin/java 1
+  only_if: ${jdk_installed.changed}
+
+- name: Install jar command
+  command: update-alternatives --install 
+           /usr/bin/jar jar 
+           {{ jdk_root }}/{{ jdk_folder }}/bin/jar 1
+  only_if: ${jdk_installed.changed}

playbooks/roles/jenkins/tasks/main.yml

 ---
+- 
+- include: java.yml
 - include: xvfb.yml

playbooks/roles/jenkins/tasks/xvfb.yml

 ---
 - name: install xvfb
-  sudo: True
   apt: pkg=xvfb state=present
 
 - name: configure display
-  sudo: True
   template: src=xvfb.sh.j2 dest=/etc/profile.d/xvfb.sh owner=root group=root mode=0755
 
 - name: create xvfb upstart script
-  sudo: True
   template: src=xvfb.conf.j2 dest=/etc/init/xvfb.conf owner=root group=root
   notify:
     - start xvfb

playbooks/vars/jenkins.yml

+---
+jdk_root: /usr/local/jdk
+jdk_cookie_header: "gpw_e24=http%3A%2F%2Fwww.oracle.com"
+jdk_download_url: http://download.oracle.com/otn-pub/java/jdk/7u25-b15/jdk-7u25-linux-x64.tar.gz
+jdk_archive: jdk-7u25-linux-x64.tar.gz
+jdk_folder: jdk1.7.0_25