public java.util.List<PropertyDifference> getPropertyDifferences() {
        if (propertyDifferences == null) {
            propertyDifferences = new com.amazonaws.internal.SdkInternalList<PropertyDifference>();
        }
        return propertyDifferences;
    }
<p>
A collection of the resource properties whose actual values differ from their expected values. These will be
present only for resources whose <code>StackResourceDriftStatus</code> is <code>MODIFIED</code>.
</p>

@return A collection of the resource properties whose actual values differ from their expected values. These will
        be present only for resources whose <code>StackResourceDriftStatus</code> is <code>MODIFIED</code>.
aws-java-sdk-cloudformation/src/main/java/com/amazonaws/services/cloudformation/model/StackResourceDrift.java