I want to catch and ignore the following tomcat ClientAbortException.
As it is unnecessary to pay any attention on this for my program.
Any idea how and
since you probably don't want a dependency to Catalina, you can ignore the Exception like this (I'm assuming the ClientAbortException is the cause):
String simpleName = e.getCause().getClass().getSimpleName();
if (simpleName.equals("ClientAbortException")) {
// ignore
} else {
// do whatever you do
}