ClassCastException from ConditionalEvaluator.evaluateEmpty

[dcrissman]

public static boolean evaluateEmpty(IfFieldEmpty fe, RDBMSContext rdbmsContext) {
    return ((Collection)fe.getField()).isEmpty();
}

In the above code snippet, com.redhat.lightblue.util.Path is being cast to a java.util.Collection, which it is not, causing a ClassCastException.

[luan-cestari]

The correct implementation would get the value from the data returned from SQL database and check if that is empty. For example that value could be a string or a list, both can be empty, but doesn't have an common interface, so it would need instanceof

[dcrissman]

For now, I slapped the Ignore annotation on the failing tests in ConditionalEvaluatorTest. These annotations should be removed when addressed.
testEvaluateEmpty_True
testEvaluateEmpty_False