Turning off Eclipse Validation

Update for Mac Eclipse:

Disable validation options as per your requirement (you may disable all also).

Eclipse => Preferences => Validation => Disable checkbox (or Disable All) => Apply

Reference screen shot:

Click Window > Preferences and select Validation in the left pane. The Validation page of the Preferences window lists the validators available in your project and their settings.

To disable individual validators, clear the check boxes next to each validator that you want to disable. Each validator has a check box to specify whether it is enabled for manual validation or on a build.

see here

It might also help to disable Validation Builders:

Project Properties - Builders

• Click Window > Preferences,
• select Validation in the left pane.
• Check Suspend all validators (2nd check box on the right pane for Juno)
• Click Apply, Click OK