implicit super constructor object() is undefined. must explicitly invoke another constructor

Is this a new bug? I got a new mac computer and install eclipse on it. The checksum matches fine. But when I try to create a simple class, just for basic testing, I get the error mentioned in the title. Never before have I seen java complaining about object() constructor. Here is the class:

package com.my.ok;

public class First {

}

EDIT:

I am finding that the problem happens if I set execution environment to javaSE-1.7