Github user yanboliang commented on a diff in the pull request:
https://github.com/apache/spark/pull/14150#discussion_r71151532
--- Diff: mllib/src/test/java/org/apache/spark/ml/feature/JavaPCASuite.java
---
@@ -107,7 +107,11 @@ public VectorPair call(Tuple2<Vector, Vector> pair) {
.fit(df);
List<Row> result = pca.transform(df).select("pca_features",
"expected").toJavaRDD().collect();
for (Row r : result) {
- Assert.assertEquals(r.get(1), r.get(0));
+ Vector calculatedVector = (Vector)r.get(0);
--- End diff --
Fix the cast issue, although the style checker does not complain anything.
I think we can track the style checker issue in a separate JIRA.
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