[mysql] How to fix: "No suitable driver found for jdbc:mysql://localhost/dbname" error when using pools?

I had the same problem using Tomcat7 with mysql-connector-java-5.1.26 that I put in both my $CATALINA_HOME/lib and WEB-INF/lib, just in case. But it wouldn't find it until I used either one of these two statements before getting the connection:

DriverManager.registerDriver(new com.mysql.jdbc.Driver ());

OR

Class.forName("com.mysql.jdbc.Driver");

I then followed up with removing mysql-connector-java-5.1.26 from $CATALINA_HOME/lib and the connection still works.

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