[commons-math] 01/02: use subList().clear instead of a loop of remove(0)

[er...@apache.org]

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erans pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/commons-math.git

commit e34ea727ca72599081f091a08e41d1ba3f5dbdd1
Author: XenoAmess <xe...@gmail.com>
AuthorDate: Fri Jun 5 04:20:29 2020 +0800

    use subList().clear instead of a loop of remove(0)
---
 .../org/apache/commons/math4/stat/descriptive/ListUnivariateImpl.java | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/test/java/org/apache/commons/math4/stat/descriptive/ListUnivariateImpl.java b/src/test/java/org/apache/commons/math4/stat/descriptive/ListUnivariateImpl.java
index cf15b93..132c4a3 100644
--- a/src/test/java/org/apache/commons/math4/stat/descriptive/ListUnivariateImpl.java
+++ b/src/test/java/org/apache/commons/math4/stat/descriptive/ListUnivariateImpl.java
@@ -197,8 +197,8 @@ public class ListUnivariateImpl extends DescriptiveStatistics implements Seriali
         //Discard elements from the front of the list if the windowSize is less than
         // the size of the list.
         int extra = list.size() - windowSize;
-        for (int i = 0; i < extra; i++) {
-            list.remove(0);
+        if (extra > 0) {
+            list.subList(0, extra).clear();
         }
     }