simplify clone of ArrayList

Author: jetersen

src/main/java/com/bettercloud/vault/api/mounts/MountConfig.java

@@ -76,19 +76,15 @@ public List<String> getAuditNonHmacRequestKeys() {
         if (auditNonHmacRequestKeys == null) {
             return null;
         } else {
-            final List<String> clone = new ArrayList<>();
-            clone.addAll(auditNonHmacRequestKeys);
-            return clone;
+            return new ArrayList<>(auditNonHmacRequestKeys);
         }
     }
 
     public List<String> getAuditNonHmacResponseKeys() {
         if (auditNonHmacResponseKeys == null) {
             return null;
         } else {
-            final List<String> clone = new ArrayList<>();
-            clone.addAll(auditNonHmacResponseKeys);
-            return clone;
+            return new ArrayList<>(auditNonHmacResponseKeys);
         }
     }
 

src/main/java/com/bettercloud/vault/api/mounts/MountPayload.java

@@ -89,19 +89,15 @@ public List<String> getAuditNonHmacRequestKeys() {
         if (auditNonHmacRequestKeys == null) {
             return null;
         } else {
-            final List<String> clone = new ArrayList<>();
-            clone.addAll(auditNonHmacRequestKeys);
-            return clone;
+            return new ArrayList<>(auditNonHmacRequestKeys);
         }
     }
 
     public List<String> getAuditNonHmacResponseKeys() {
         if (auditNonHmacResponseKeys == null) {
             return null;
         } else {
-            final List<String> clone = new ArrayList<>();
-            clone.addAll(auditNonHmacResponseKeys);
-            return clone;
+            return new ArrayList<>(auditNonHmacResponseKeys);
         }
     }
 

src/main/java/com/bettercloud/vault/api/pki/RoleOptions.java

@@ -221,9 +221,7 @@ public List<String> getAllowedDomains() {
         if (allowedDomains == null) {
             return null;
         } else {
-            final List<String> clone = new ArrayList<>();
-            clone.addAll(allowedDomains);
-            return clone;
+            return new ArrayList<>(allowedDomains);
         }
     }