Update Ubuntu 14.04 to 16.04. Unity / OS menu is not loading.

If you are an Ubuntu fan and have recently updated from 14.04 to 16.04, you may run into a situation once you are done. "WHERE ARE MY MENUS?". If you don't see the menus of the OS (i.e. icons on left side aka unity), then don't panic! Do the following:

1- Right click
2- Open Terminal
3- Type the following:
dconf reset -f /org/compiz/
setsid unity

And you are done!! Life can go back to normal now...ish

Source (Thank you O master of askubuntu.com under the following link):
http://askubuntu.com/questions/761035/ubuntu-16-04-no-menu-bar-or-launcher-help

Deploy Servlets on Eclipse on Ubuntu - links to help.

How to deploy Servlets via Eclipse on Ubuntu -- start here
http://www.codejava.net/ides/eclipse/how-to-create-deploy-and-run-java-servlet-in-eclipse

If you run into problems then go here -- (I was using tomcat v7.0)
http://stackoverflow.com/questions/13423593/eclipse-4-2-juno-cannot-create-a-server-using-the-selected-type-in-tomcat-7

Last, if you have permissions preventing you to run the web application, close the eclipse and run it as admin. it will by-pass some of the restrictions with deployments. In the eclipse application directory, type:  sudo ./eclipse and it will run as admin.

Tomecat v7.0 Server, Eclipse, and Ubuntu. Server Name is blank when defining a new server

Problem: 
Tomecat v7.0 Server, Eclipse, and Ubuntu. When you Define a new Server and choose tomcat v7.9, the Server host name is populated however the server name is blank. It is expected to be something like "Tomecat v7.0 Server at localhost"

Solution:

1. Close Eclipse
2. In {workspace-directory}/.metadata/.plugins/org.eclipse.core.runtime/.settings. delete the following:
   • org.eclipse.wst.server.core.prefs
   • org.eclipse.jst.server.tomcat.core.prefs
3. Restart Eclipse

Source (thanks whoever wrote the solution):
http://crunchify.com/eclipse-how-to-fix-installing-apache-tomcat-server-issue-blank-server-name-field/