Use Collections.addAll to copy elements from an array to collections

Change-Id: I048d005a0f75b0803be14f2128af682f0f834f8d
diff --git a/gerrit-gwtui-common/src/main/java/com/google/gerrit/client/info/AuthInfo.java b/gerrit-gwtui-common/src/main/java/com/google/gerrit/client/info/AuthInfo.java
index d2e5d49..43281bd 100644
--- a/gerrit-gwtui-common/src/main/java/com/google/gerrit/client/info/AuthInfo.java
+++ b/gerrit-gwtui-common/src/main/java/com/google/gerrit/client/info/AuthInfo.java
@@ -69,9 +69,7 @@
     List<AgreementInfo> agreements = new ArrayList<>();
     JsArray<AgreementInfo> contributorAgreements = _contributorAgreements();
     if (contributorAgreements != null) {
-      for (AgreementInfo a : Natives.asList(contributorAgreements)) {
-        agreements.add(a);
-      }
+      agreements.addAll(Natives.asList(contributorAgreements));
     }
     return agreements;
   }
diff --git a/gerrit-gwtui-common/src/main/java/com/google/gerrit/client/info/DownloadInfo.java b/gerrit-gwtui-common/src/main/java/com/google/gerrit/client/info/DownloadInfo.java
index 8d56a1c..a22a1e8 100644
--- a/gerrit-gwtui-common/src/main/java/com/google/gerrit/client/info/DownloadInfo.java
+++ b/gerrit-gwtui-common/src/main/java/com/google/gerrit/client/info/DownloadInfo.java
@@ -31,9 +31,7 @@
 
   public final List<String> archives() {
     List<String> archives = new ArrayList<>();
-    for (String f : Natives.asList(_archives())) {
-      archives.add(f);
-    }
+    archives.addAll(Natives.asList(_archives()));
     return archives;
   }
 
diff --git a/java/com/google/gerrit/acceptance/AbstractDaemonTest.java b/java/com/google/gerrit/acceptance/AbstractDaemonTest.java
index fbf3b84..4f2c6990 100644
--- a/java/com/google/gerrit/acceptance/AbstractDaemonTest.java
+++ b/java/com/google/gerrit/acceptance/AbstractDaemonTest.java
@@ -1286,9 +1286,7 @@
   protected void assertDiffForNewFile(
       DiffInfo diff, RevCommit commit, String path, String expectedContentSideB) throws Exception {
     List<String> expectedLines = new ArrayList<>();
-    for (String line : expectedContentSideB.split("\n")) {
-      expectedLines.add(line);
-    }
+    Collections.addAll(expectedLines, expectedContentSideB.split("\n"));
 
     assertThat(diff.binary).isNull();
     assertThat(diff.changeType).isEqualTo(ChangeType.ADDED);
diff --git a/java/com/google/gerrit/server/auth/ldap/Helper.java b/java/com/google/gerrit/server/auth/ldap/Helper.java
index 795686c..5af730f 100644
--- a/java/com/google/gerrit/server/auth/ldap/Helper.java
+++ b/java/com/google/gerrit/server/auth/ldap/Helper.java
@@ -406,9 +406,7 @@
             throw new IllegalArgumentException("No variables in ldap.groupMemberPattern");
           }
 
-          for (String name : groupMemberQuery.getParameters()) {
-            accountAtts.add(name);
-          }
+          accountAtts.addAll(groupMemberQuery.getParameters());
 
           groupMemberQueryList.add(groupMemberQuery);
         }
diff --git a/java/com/google/gerrit/server/mail/send/SmtpEmailSender.java b/java/com/google/gerrit/server/mail/send/SmtpEmailSender.java
index b08e594..10e8b0b 100644
--- a/java/com/google/gerrit/server/mail/send/SmtpEmailSender.java
+++ b/java/com/google/gerrit/server/mail/send/SmtpEmailSender.java
@@ -114,9 +114,7 @@
     smtpPass = cfg.getString("sendemail", null, "smtppass");
 
     Set<String> rcpt = new HashSet<>();
-    for (String addr : cfg.getStringList("sendemail", null, "allowrcpt")) {
-      rcpt.add(addr);
-    }
+    Collections.addAll(rcpt, cfg.getStringList("sendemail", null, "allowrcpt"));
     allowrcpt = Collections.unmodifiableSet(rcpt);
     importance = cfg.getString("sendemail", null, "importance");
     expiryDays = cfg.getInt("sendemail", null, "expiryDays", 0);
diff --git a/javatests/com/google/gerrit/acceptance/rest/change/ChangeReviewersIT.java b/javatests/com/google/gerrit/acceptance/rest/change/ChangeReviewersIT.java
index ee5d3b0..129d98a 100644
--- a/javatests/com/google/gerrit/acceptance/rest/change/ChangeReviewersIT.java
+++ b/javatests/com/google/gerrit/acceptance/rest/change/ChangeReviewersIT.java
@@ -53,6 +53,7 @@
 import com.google.gson.stream.JsonReader;
 import java.util.ArrayList;
 import java.util.Collection;
+import java.util.Collections;
 import java.util.HashMap;
 import java.util.Iterator;
 import java.util.List;
@@ -839,9 +840,7 @@
   private static void assertReviewers(
       ChangeInfo c, ReviewerState reviewerState, TestAccount... accounts) throws Exception {
     List<TestAccount> accountList = new ArrayList<>(accounts.length);
-    for (TestAccount a : accounts) {
-      accountList.add(a);
-    }
+    Collections.addAll(accountList, accounts);
     assertReviewers(c, reviewerState, accountList);
   }