[commons-math] branch master updated: MATH-1571 - Collections Performance

[eb...@apache.org]

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


The following commit(s) were added to refs/heads/master by this push:
     new e29fd60  MATH-1571 - Collections Performance
e29fd60 is described below

commit e29fd602381be65c0e2c2e4cd1e1c59bfa16c8bd
Author: Arturo Bernal <ar...@gmail.com>
AuthorDate: Tue Apr 13 06:54:59 2021 +0200

    MATH-1571 - Collections Performance
---
 src/main/java/org/apache/commons/math4/ml/neuralnet/Network.java       | 3 +--
 .../java/org/apache/commons/math4/optim/linear/SimplexTableau.java     | 2 +-
 2 files changed, 2 insertions(+), 3 deletions(-)

diff --git a/src/main/java/org/apache/commons/math4/ml/neuralnet/Network.java b/src/main/java/org/apache/commons/math4/ml/neuralnet/Network.java
index 040963b..f5dfbd2 100644
--- a/src/main/java/org/apache/commons/math4/ml/neuralnet/Network.java
+++ b/src/main/java/org/apache/commons/math4/ml/neuralnet/Network.java
@@ -179,8 +179,7 @@ public class Network
      * @see NeuronIdentifierComparator
      */
     public Collection<Neuron> getNeurons(Comparator<Neuron> comparator) {
-        final List<Neuron> neurons = new ArrayList<>();
-        neurons.addAll(neuronMap.values());
+        final List<Neuron> neurons = new ArrayList<>(neuronMap.values());
 
         Collections.sort(neurons, comparator);
 
diff --git a/src/main/java/org/apache/commons/math4/optim/linear/SimplexTableau.java b/src/main/java/org/apache/commons/math4/optim/linear/SimplexTableau.java
index e757679..c306cfc 100644
--- a/src/main/java/org/apache/commons/math4/optim/linear/SimplexTableau.java
+++ b/src/main/java/org/apache/commons/math4/optim/linear/SimplexTableau.java
@@ -603,7 +603,7 @@ class SimplexTableau implements Serializable {
         }
 
         // remove the columns in reverse order so the indices are correct
-        Integer[] drop = columnsToDrop.toArray(new Integer[columnsToDrop.size()]);
+        Integer[] drop = columnsToDrop.toArray(new Integer[0]);
         for (int i = drop.length - 1; i >= 0; i--) {
             columnLabels.remove((int) drop[i]);
         }