oracle_java_rpm_filename is undefined

[ksingh7]

TASK [ansiblebit.oracle-java : set some variables] **************************************************************************
fatal: [mgmt]: FAILED! => {"failed": true, "msg": "the field 'args' has an invalid value, which appears to include a variable that is undefined. The error was: http://download.oracle.com/otn-pub/java/jdk/{{ oracle_java_version }}u{{ oracle_java_version_update }}-b{{ oracle_java_version_build }}/d54c1d3a095b4ff2b6607d096fa80163/{{ oracle_java_rpm_filename }}: 'oracle_java_rpm_filename' is undefined\n\nThe error appears to have been in '/etc/ansible/roles/ansiblebit.oracle-java/tasks/redhat/main.yml': line 43, column 3, but may\nbe elsewhere in the file depending on the exact syntax problem.\n\nThe offending line appears to be:\n\n\n- name: set some variables\n  ^ here\n"}