ElasticSearch not installed when upgraded via terminal

Summary

Installer not installing Elasticsearch when user perform upgrade. This issue is only occurred when upgrade is perform on terminal from Bitbucket Server ver4.5.2 to Bitbucket Server ver4.6.1. The affected user running Biitbucket Server in a predefined environment of RHEL6 and RHEL7 without GUI. The absence of Java which lead to upgrade process take place in terminal instead of GUI.

Steps to reproduce

1. Execute Linux 64bit .bin installer on terminal.
2. Choose option to upgrade.
3. Further upgrade option.

Expected Results

Able to install ElasticSearch as part of newly included feature, when upgrading via terminal.

Actual Results

Being prompt with the following output:

Elasticsearch will not be installed with this option.

Workround

Workaround applied only those able to use the GUI mode for upgrade.