Rewrite getRuntimeJars to be more succinct

Author: romainbrenguier

src/main/java/org/sonarqube/gradle/SonarUtils.java

@@ -29,10 +29,12 @@
 import java.util.LinkedHashSet;
 import java.util.List;
 import java.util.Map;
+import java.util.Objects;
 import java.util.Optional;
 import java.util.Set;
 import java.util.regex.Pattern;
 import java.util.stream.Collectors;
+import java.util.stream.Stream;
 import java.util.stream.StreamSupport;
 import javax.annotation.Nullable;
 import org.gradle.api.Project;
@@ -409,19 +411,7 @@ public static String constructPrefixedProjectName(String projectPath) {
    * Returns the collection of Java and Java FX runtime jars, if available.
    */
   public static Collection<File> getRuntimeJars() {
-    List<File> libraries = new ArrayList<>(2);
-
-    File runtimeJar = getRuntimeJar();
-    if (runtimeJar != null) {
-      libraries.add(runtimeJar);
-    }
-
-    File fxRuntimeJar = getFxRuntimeJar();
-    if (fxRuntimeJar != null) {
-      libraries.add(fxRuntimeJar);
-    }
-
-    return libraries;
+    return Stream.of(getRuntimeJar(), getFxRuntimeJar()).filter(Objects::nonNull).collect(Collectors.toList());
   }
 
   @Nullable