Installing management Console Tomcat with MySQL

Hello I am having problems with installation configuration. I do not know which documents and lines to alternate in ManagementConsole.war. I think that the administrator guide is not doing very well on educating me how to install. 
I have installed XAMPP from where I run the MySQL and Tomcat from. 
I have put the managementconsole.xml in catalina localhost folder
The original managementconsole.war is deployed in tomcat webapps folder

Which files in .war should I alter and which lines?



I am getting an error message in managementconsole webpage:  Application failed to start "Spring subsystem failed to load".


XAMPP log:

INFO: Deploying configuration descriptor C:\xampp\tomcat\conf\Catalina\localhost\ManagementConsole.xml
Loading class `com.mysql.jdbc.Driver'. This is deprecated. The new driver class is `com.mysql.cj.jdbc.Driver'. The driver is automatically registered via the SPI and manual loading of the driver class is generally unnecessary.
0    [localhost-startStop-1] ERROR com.kapowtech.scheduler.server.spring.ProductionDataSourceFactory  - Could not connect to JNDI data source: 'jdbc/kapow/platform'
org.apache.tomcat.dbcp.dbcp.SQLNestedException: Cannot create PoolableConnectionFactory (Access denied for user 'admin'@'localhost' (using password: YES))


So I think that the password and username are wrong, but what they are by default. 

Please help..

I figured it out
So the problem is with XAMMP:s version of tomcat that is not able to run management studio.

So one must use the original Apache Tomcat version 7 and MySQL database

that is by the way not pronounced as my as "my database" because My is actually a Finnish first name and it is the name of Monty Widenius daughter so not my database but rather My, so there you have it.