Use less verbose API like String.join Arrays.fill List.copyOf

Author: rsvoboda

extensions/vertx-http/deployment/src/main/java/io/quarkus/vertx/http/deployment/devmode/RouteDescriptionBuildItem.java

@@ -1,8 +1,5 @@
 package io.quarkus.vertx.http.deployment.devmode;
 
-import java.util.Arrays;
-import java.util.stream.Collectors;
-
 import io.quarkus.builder.item.MultiBuildItem;
 import io.quarkus.vertx.http.runtime.devmode.RouteDescription;
 import io.quarkus.vertx.http.runtime.devmode.RouteMethodDescription;
@@ -29,7 +26,7 @@ public RouteDescription getDescription() {
     }
 
     private String getMediaType(String[] all) {
-        return all.length == 0 ? null : Arrays.stream(all).collect(Collectors.joining(", "));
+        return all.length == 0 ? null : String.join(", ", all);
     }
 
 }

extensions/vertx-http/runtime/src/main/java/io/quarkus/vertx/http/runtime/QuarkusHttpHeaders.java

@@ -8,6 +8,7 @@
 import static io.netty.util.AsciiString.CASE_SENSITIVE_HASHER;
 
 import java.util.AbstractMap;
+import java.util.Arrays;
 import java.util.Collections;
 import java.util.HashMap;
 import java.util.Iterator;
@@ -314,9 +315,7 @@ public Set<String> names() {
 
     @Override
     public QuarkusHttpHeaders clear() {
-        for (int i = 0; i < entries.length; i++) {
-            entries[i] = null;
-        }
+        Arrays.fill(entries, null);
         head.before = head.after = head;
         return this;
     }

extensions/vertx-http/runtime/src/main/java/io/quarkus/vertx/http/runtime/attribute/QuotingExchangeAttribute.java

@@ -36,7 +36,7 @@ public String readAttribute(RoutingContext exchange) {
                 buffer.append(svalue.substring(i));
                 i = svalue.length();
             } else {
-                buffer.append(svalue.substring(i, j + 1));
+                buffer.append(svalue, i, j + 1);
                 buffer.append('"');
                 i = j + 2;
             }

extensions/vertx-http/runtime/src/main/java/io/quarkus/vertx/http/runtime/devmode/ConfigDescriptionsManager.java

@@ -46,7 +46,7 @@ public ConfigDescriptionsManager(final List<ConfigDescription> configDescription
     }
 
     public ConfigDescriptionsManager(final List<ConfigDescription> configDescriptions, Set<String> devServicesProperties) {
-        this.configDescriptions = Collections.unmodifiableList(new ArrayList<>(configDescriptions));
+        this.configDescriptions = List.copyOf(configDescriptions);
         this.devServicesProperties = devServicesProperties;
         currentCl = Thread.currentThread().getContextClassLoader();
     }