JIRA fails to parse jira-config.properties due to extra whitespace

Symptoms

JIRA is not picking up the properties which an admin has entered in the jira-config.properties file.

Steps to repro

1. Go into the jira-config.properties file and add:

jira.search.views.default.max = 200

2. Restart JIRA
3. Confirm the property in the System Info page
4. Go back to the file, and add a trailing whitespace as such:

jira.search.views.default.max = 200 

5. Restart JIRA
6. Confirm that the property is no longer seen in the System Info page

Workaround

1. Delete the extra space at the end of a line
2. Restart JIRA