Reduce visibility to package-private.
@@ -941,10 +941,9 @@ public class PSquarePercentile extends AbstractStorelessUnivariateStatistic
/**
* An interface that encapsulates abstractions of the
- * P-square algorithm markers as is explained in the original works. This
- * interface is exposed with protected access to help in testability.
+ * P-square algorithm markers as is explained in the original works.
*/
- protected interface PSquareMarkers {
+ interface PSquareMarkers { // Package-private for unit testing.
/**
* Returns Percentile value computed thus far.
*
