Before we get started with the steps, first try and reinstall Minecraft to ensure there are no corrupt files causing issues. Make sure you save your worlds properly so you don't lose any progress.

Add or Remove Programs entry for Java(TM) SE Runtime Environment 6. Java SE consists of a virtual machine, which must be used to run Java programs, together with a set of libraries (or "packages") ...

Earlier this month, Oracle released a new version of Java, 1.6.0_21 (also called 6u21). Unfortunately as Eclipse users quickly discovered, it was incompatible with Eclipse and Eclipse Rich Client ...