diff --git a/README.md b/README.md
index 3637db8..7c37587 100644
--- a/README.md
+++ b/README.md
@@ -1,31 +1,25 @@
 Role Name
 =========
 
-A brief description of the role goes here.
-
-Requirements
-------------
-
-Any pre-requisites that may not be covered by Ansible itself or the role should be mentioned here. For instance, if the role uses the EC2 module, it may be a good idea to mention in this section that the boto package is required.
+A role that installs OpenJDK. The role removes a Oracle JDK if it finds it on the system (Ubuntu only)
 
 Role Variables
 --------------
 
-A description of the settable variables for this role should go here, including any variables that are in defaults/main.yml, vars/main.yml, and any variables that can/should be set via parameters to the role. Any variables that are read from other roles and/or the global scope (ie. hostvars, group vars, etc.) should be mentioned here as well.
+Here are listed the most important defaults. See defaults/main.yml for the complete set of variables.
 
+``` yaml
+openjdk_default: 8
+openjdk_pkgs:
+  - jre-headless
+  - jdk-headless
+#  - jre
+#  - jdk
+```
 Dependencies
 ------------
 
-A list of other roles hosted on Galaxy should go here, plus any details in regards to parameters that may need to be set for other roles, or variables that are used from other roles.
-
-Example Playbook
-----------------
-
-Including an example of how to use your role (for instance, with variables passed in as parameters) is always nice for users too:
-
-    - hosts: servers
-      roles:
-         - { role: username.rolename, x: 42 }
+None
 
 License
 -------
@@ -35,4 +29,4 @@ EUPL-1.2
 Author Information
 ------------------
 
-An optional section for the role authors to include contact information, or a website (HTML is not allowed).
+Andrea Dell'Amico, <andrea.dellamico@isti.cnr.it>
diff --git a/defaults/main.yml b/defaults/main.yml
index 95d3c70..d998738 100644
--- a/defaults/main.yml
+++ b/defaults/main.yml
@@ -1,2 +1,44 @@
 ---
-# defaults file for ansible-role-template
\ No newline at end of file
+openjdk_install: True
+openjdk_default: 8
+jdk_default: '{{ openjdk_default }}'
+openjdk_pkg_state: present
+openjdk_version:
+  - '{{ openjdk_default }}'
+
+dismissed_openjdk_ppa: 'ppa:openjdk-r/ppa'
+openjdk_zulu_repo_install: False
+openjdk_zulu_repo_key_id: '0xB1998361219BD9C9'
+openjdk_zulu_repository: 'deb http://repos.azulsystems.com/{{ ansible_distribution | lower }} stable main'
+openjdk_java_home: '/usr/lib/jvm/java-{{ openjdk_default }}-openjdk-amd64'
+jdk_java_home: '{{ openjdk_java_home }}'
+# jdk_java_home: '/usr/lib/jvm/java-{{ openjdk_el_default_version }}-openjdk'
+openjdk_zulu_java_home: '/usr/lib/jvm/zulu-{{ openjdk_default }}-amd64'
+openjdk_zulu_package_name: zulu
+
+openjdk_pkgs:
+  - jre-headless 
+  - jdk-headless 
+#  - jre
+#  - jdk
+
+# This one we remove
+oracle_jdk_ubuntu_ppa: 'ppa:webupd8team/java'
+openjdk_oracle_jdk_pkgs:
+  - oracle-java7-installer
+  - oracle-java7-set-default
+  - oracle-java7-unlimited-jce-policy
+  - oracle-java8-installer
+  - oracle-java8-set-default
+  - oracle-java8-unlimited-jce-policy
+  
+openjdk_el_default_version: '1.{{ openjdk_default }}.0'
+openjdk_el_version:
+  - '{{ openjdk_default_version }}'
+
+# RHEL CentOS package names
+# -devel is needed if we want javac.
+openjdk_el_pkgs:
+  - openjdk-headless
+  - openjdk-devel
+
diff --git a/meta/main.yml b/meta/main.yml
index 1126a5e..ef5f8df 100644
--- a/meta/main.yml
+++ b/meta/main.yml
@@ -1,61 +1,27 @@
 galaxy_info:
-  author: your name
-  description: your description
+  author: Andrea Dell'Amico
+  description: Systems Architect
   company: ISTI-CNR
 
-  # If the issue tracker for your role is not on github, uncomment the
-  # next line and provide a value
   issue_tracker_url: https://redmine-s2i2s.isti.cnr.it/projects/provisioning
 
-  # Some suggested licenses:
-  # - BSD (default)
-  # - MIT
-  # - GPLv2
-  # - GPLv3
-  # - Apache
-  # - CC-BY
-  license: EUPL-1.2
+  license: EUPL 1.2+
 
   min_ansible_version: 2.8
 
-  # If this a Container Enabled role, provide the minimum Ansible Container version.
-  # min_ansible_container_version:
-
-  # Optionally specify the branch Galaxy will use when accessing the GitHub
-  # repo for this role. During role install, if no tags are available,
-  # Galaxy will use this branch. During import Galaxy will access files on
-  # this branch. If Travis integration is configured, only notifications for this
-  # branch will be accepted. Otherwise, in all cases, the repo's default branch
-  # (usually master) will be used.
-  #github_branch:
-
-  #
-  # Provide a list of supported platforms, and for each platform a list of versions.
-  # If you don't wish to enumerate all versions for a particular platform, use 'all'.
   # To view available platforms and versions (or releases), visit:
   # https://galaxy.ansible.com/api/v1/platforms/
   #
-  # platforms:
-  # - name: Fedora
-  #   versions:
-  #   - all
-  #   - 25
-  # - name: SomePlatform
-  #   versions:
-  #   - all
-  #   - 1.0
-  #   - 7
-  #   - 99.99
-
-  galaxy_tags: []
-    # List tags for your role here, one per line. A tag is a keyword that describes
-    # and categorizes the role. Users find roles by searching for tags. Be sure to
-    # remove the '[]' above, if you add tags to this list.
-    #
-    # NOTE: A tag is limited to a single word comprised of alphanumeric characters.
-    #       Maximum 20 tags per role.
-
-dependencies: []
-  # List your role dependencies here, one per line. Be sure to remove the '[]' above,
-  # if you add dependencies to this list.
+  platforms:
+    - name: Ubuntu
+      versions:
+        - bionic
+    - name: EL
+      versions:
+        - 7
+        - 8
 
+  galaxy_tags:
+    - openjdk
+    - jdk
+    - jre
diff --git a/tasks/main.yml b/tasks/main.yml
index 53c6cae..a0498f9 100644
--- a/tasks/main.yml
+++ b/tasks/main.yml
@@ -1,2 +1,5 @@
 ---
-# tasks file for ansible-role-template
\ No newline at end of file
+- import_tasks: openjdk_deb.yml
+  when: ansible_distribution_file_variety == "Debian"
+- import_tasks: openjdk_el.yml
+  when: ansible_distribution_file_variety == "RedHat"
diff --git a/tasks/openjdk_deb.yml b/tasks/openjdk_deb.yml
new file mode 100644
index 0000000..43d2c3b
--- /dev/null
+++ b/tasks/openjdk_deb.yml
@@ -0,0 +1,79 @@
+---
+- block:
+  - name: Remove the openjdk-r ppa. It is not maintained anymore
+    apt_repository: repo='{{ dismissed_openjdk_ppa }}' update_cache=yes state=absent
+
+  - name: Remove the Oracle JDK PPA
+    apt_repository: repo='{{ oracle_jdk_ubuntu_ppa }}' state=absent update_cache=yes
+
+  - name: Check if we must use the Zulu repository
+    set_fact:
+      openjdk_zulu_repo_install: True
+    when: ansible_distribution_major_version <= '16'
+
+  tags: [ 'jdk', 'openjdk' ]
+
+- block:
+  - name: Install the Zulu repository key
+    apt_key: keyserver='hkp://keyserver.ubuntu.com' id={{ openjdk_zulu_repo_key_id }}
+
+  - name: Install the proper Zulu repository
+    apt_repository: repo='{{ openjdk_zulu_repository }}' update_cache=yes
+
+  - name: Install the Zulu OpenJDK 
+    apt: pkg={{ openjdk_zulu_package_name }}-{{ item }} state={{ openjdk_pkg_state }} update_cache=yes cache_valid_time=3600
+    with_items: '{{ openjdk_version }}'
+    register: openjdk_installed
+
+  - name: Set the default OpenJDK as Zulu
+    shell: update-java-alternatives -s /usr/lib/jvm/zulu-{{ openjdk_default }}-amd64
+    when: openjdk_installed is changed
+
+  - name: Set the correct value for jdk_java_home when we are installing Zulu
+    set_fact:
+      jdk_java_home: '{{ openjdk_zulu_java_home }}'
+
+  when: openjdk_zulu_repo_install
+  tags: [ 'jdk', 'openjdk' ]
+
+- block:
+  - name: Remove the Zulu repository if it is present
+    apt_repository: repo='{{ openjdk_zulu_repository }}' update_cache=yes state=absent
+
+  - name: Install the OpenJDK that comes with the distribution
+    apt: pkg=openjdk-{{ item.0 }}-{{ item[1] }} state={{ openjdk_pkg_state }} update_cache=yes cache_valid_time=3600
+    with_nested:
+      - '{{ openjdk_version }}'
+      - '{{ openjdk_pkgs }}'
+    register: openjdk_installed
+
+  - name: Set the default OpenJDK
+    shell: update-java-alternatives -s java-1.{{ openjdk_default }}.0-openjdk-amd64
+    when: openjdk_installed is changed
+
+  - name: Set the correct value for jdk_java_home when we are installing the distribution OpenJDK
+    set_fact:
+      jdk_java_home: '{{ openjdk_java_home }}'
+
+  when: not openjdk_zulu_repo_install
+  tags: [ 'jdk', 'openjdk' ]
+
+- block:
+  - name: Rebuild the Ubuntu keystore
+    command: update-ca-certificates --fresh
+    when: openjdk_installed is changed
+
+  tags: [ 'jdk', 'openjdk' ]
+
+- block:
+  - name: Remove the Oracle JDK packages
+    apt: pkg={{ openjdk_oracle_jdk_pkgs }} state=absent cache_valid_time=3600
+
+  - name: Remove the OpenJDK packages fthat come with the distribution when we use the Zulu repository
+    apt: pkg=openjdk-{{ item.0 }}-{{ item[1] }} state=absent update_cache=yes cache_valid_time=3600
+    with_nested:
+      - '{{ openjdk_version }}'
+      - '{{ openjdk_pkgs }}'
+    when: openjdk_zulu_repo_install
+
+  tags: [ 'jdk', 'openjdk' ]
diff --git a/tasks/openjdk_el.yml b/tasks/openjdk_el.yml
new file mode 100644
index 0000000..6e4e467
--- /dev/null
+++ b/tasks/openjdk_el.yml
@@ -0,0 +1,24 @@
+---
+- block:
+    - name: Install the OpenJDK packages
+      yum: pkg=java-{{ item.0 }}-{{ item[1] }} state={{ openjdk_pkg_state }}
+      with_nested:
+        - '{{ openjdk_el_version }}'
+        - '{{ openjdk_el_pkgs }}'
+      notify: Set the default OpenJDK
+
+    - name: Set fact jdk_installed
+      set_fact: jdk_installed=true
+
+  when: openjdk_install | bool
+  tags: [ 'jdk', 'openjdk' ]
+
+- block:
+    - name: Remove the OpenJDK packages
+      yum: pkg=java-{{ item.0 }}-{{ item[1] }} state=absent
+      with_nested:
+        - '{{ openjdk_el_version }}'
+        - '{{ openjdk_el_pkgs }}'
+
+  when: not openjdk_install | bool
+  tags: [ 'jdk', 'openjdk' ]
\ No newline at end of file