#1 Use OpenJDK on Ubuntu 18

tasks/install-16.yml

+---
+# file: roles/java/tasks/install-16.yml
+
+- name: 'Apt Key'
+  apt_key:
+    url='https://keyserver.ubuntu.com/pks/lookup?op=get&search=0xEA8CACC073C3DB2A'
+    state=present
+
+- name: "Apt Repository"
+  apt_repository:
+    repo='deb http://ppa.launchpad.net/{{ java_repo }}/java/ubuntu {{ ansible_distribution_release }} main'
+    state='present'
+    mode='644'
+
+- name: "Accept License"
+  shell: '{{ item }}'
+  with_items:
+    - 'echo debconf shared/accepted-oracle-license-{{ java_license }} select true | /usr/bin/debconf-set-selections'
+    - 'echo debconf shared/accepted-oracle-license-{{ java_license }} seen true | /usr/bin/debconf-set-selections'
+
+- name: "Install Agent"
+  apt:
+    pkg='oracle-java{{ java_version }}-installer'
+    state='present'
+    update_cache=yes
+    force=yes

tasks/install-18.yml

+---
+# file: roles/java/tasks/install-18.yml
+
+- name: "Install Agent"
+  apt:
+    pkg='openjdk-11-jre'
+    state='present'
+    update_cache=yes
+    force=yes

tasks/main.yml

@@ -7,28 +7,6 @@
 
 - block:
 
-  - name: 'Apt Key'
-    apt_key:
-      url='https://keyserver.ubuntu.com/pks/lookup?op=get&search=0xEA8CACC073C3DB2A'
-      state=present
-
-  - name: "Apt Repository"
-    apt_repository:
-      repo='deb http://ppa.launchpad.net/{{ java_repo }}/java/ubuntu {{ ansible_distribution_release }} main'
-      state='present'
-      mode='644'
-
-  - name: "Accept License"
-    shell: '{{ item }}'
-    with_items:
-      - 'echo debconf shared/accepted-oracle-license-{{ java_license }} select true | /usr/bin/debconf-set-selections'
-      - 'echo debconf shared/accepted-oracle-license-{{ java_license }} seen true | /usr/bin/debconf-set-selections'
-
-  - name: "Install Agent"
-    apt:
-      pkg='oracle-java{{ java_version }}-installer'
-      state='present'
-      update_cache=yes
-      force=yes
+  - include_tasks: 'install-{{ ansible_distribution_major_version }}.yml'
 
   when: '"java" not in excluded_roles'