Question: how to redirect http traffic to https in tomcat?
Answer: Go to SymantecDLP\Protect\tomcat\conf directory.
Edit the file server.xml.
Add the following above the first <connector> entry: ... 
Save the server. ... 
Edit the web.xml file in the same directory.
Scroll to the bottom of the file and add the following just above the </web-app> entry: ... 
Save the web.xml file.