I tried to install some plugins to my Eclipse Gallileo, such as Eclipse Web Developer Tools and others. Whatever I try, I get the same error:
An error occurred during the org.eclipse.equinox.internal.provisional.p2.engine.phases.CheckTrust phase.
session context was:(profile=PlatformProfile, phase=org.eclipse.equinox.internal.provisional.p2.engine.phases.CheckTrust, operand=, action=).
Cannot connect to keystore.
Uninitialized keystore
There was a bug in Eclipse concering Eclipse certificates not being trusted by Oracle VM.
From Eclipse FAQ: