How to change JasperServer user login password through the UI

Problem Statement: 

How to change the JasperServer user login password through the UI?

Solution: 

First of all, the system admin needs to configure JasperReports Server (JRS) to allow users to change their passwords in .../WEB-INF/jasperserver-servlet.xml file:

allowUserPasswordChange=true

Once it is enabled, on the JRS 8.0 login page, users need to enter their username and current password, then click on the "Change password" link to activate the "New Password" entry boxes to enter and confirm the new password. Click on Login to change the password and log into the application with the new password.

If the user credential is incorrect, the user will get an "Invalid credentials supplied. Could not log in to JasperReports Server." message and will not be able to log in nor make the password change successful.

Please review the TIBCO JasperReports® Server Security Guide document, CHAPTER 5 "USER SECURITY" for other user password configuration options.

https://community.jaspersoft.com/documentation/tibco-jasperreports-server-security-guide/v790/configuring-user-password-options