From 98d22782c1c10860cc6a79060da1292b92d6fa9e Mon Sep 17 00:00:00 2001
From: Emmanuel Bigeon <emmanuel@bigeon.fr>
Date: Thu, 11 Oct 2018 12:08:59 -0400
Subject: [PATCH] Collections initial size

---
 .../java/net/bigeon/gclc/command/CommandParameters.java    | 7 +++++--
 gclc/src/main/java/net/bigeon/gclc/prompt/CLIPrompter.java | 4 ++--
 2 files changed, 7 insertions(+), 4 deletions(-)

diff --git a/gclc/src/main/java/net/bigeon/gclc/command/CommandParameters.java b/gclc/src/main/java/net/bigeon/gclc/command/CommandParameters.java
index 74c1c3d..04dead6 100644
--- a/gclc/src/main/java/net/bigeon/gclc/command/CommandParameters.java
+++ b/gclc/src/main/java/net/bigeon/gclc/command/CommandParameters.java
@@ -43,6 +43,7 @@ import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
 import java.util.Set;
+import java.util.concurrent.ConcurrentHashMap;
 
 import net.bigeon.gclc.exception.CommandParsingException;
 
@@ -55,9 +56,9 @@ public final class CommandParameters {
     /** Number of element for a string argument. */
     private static final int STRINGARG_NUMBER_OF_ELEMENTS = 2;
     /** Boolean arguments. */
-    private final Map<String, Boolean> booleanArguments = new HashMap<>();
+    private final Map<String, Boolean> booleanArguments;
     /** String arguments. */
-    private final Map<String, String> stringArguments = new HashMap<>();
+    private final Map<String, String> stringArguments;
     /** Arguments restriction on the named ones. */
     private final boolean strict;
     /** additional (unnamed) parameters. */
@@ -70,9 +71,11 @@ public final class CommandParameters {
      * @param strict if the argument are restricted to the declared ones */
     public CommandParameters(final Set<String> bools, final Set<String> strings,
             final boolean strict) {
+        booleanArguments = new ConcurrentHashMap<>(bools.size());
         for (final String string : bools) {
             booleanArguments.put(string, Boolean.FALSE);
         }
+        stringArguments = new ConcurrentHashMap<>(strings.size());
         for (final String string : strings) {
             stringArguments.put(string, null);
         }
diff --git a/gclc/src/main/java/net/bigeon/gclc/prompt/CLIPrompter.java b/gclc/src/main/java/net/bigeon/gclc/prompt/CLIPrompter.java
index 4fb1952..317fd64 100644
--- a/gclc/src/main/java/net/bigeon/gclc/prompt/CLIPrompter.java
+++ b/gclc/src/main/java/net/bigeon/gclc/prompt/CLIPrompter.java
@@ -432,7 +432,7 @@ public final class CLIPrompter {
                                                 final String message) throws IOException {
         final List<Integer> indices = promptMultiChoice(manager, input, keys,
                 message);
-        final List<U> userChoices = new ArrayList<>();
+        final List<U> userChoices = new ArrayList<>(indices.size());
         for (final Integer integer : indices) {
             userChoices.add(choices.get(integer.intValue()));
         }
@@ -457,7 +457,7 @@ public final class CLIPrompter {
                                                    final String message) throws IOException {
         final List<Integer> chs = promptMultiChoice(manager, input, choices,
                 message);
-        final List<T> userChoices = new ArrayList<>();
+        final List<T> userChoices = new ArrayList<>(chs.size());
         for (final Integer integer : chs) {
             userChoices.add(choicesMap.get(choices.get(integer.intValue())));
         }