Refactor if-else chains to switch in benchmark methods (#2756)

Author: panic08

metrics/src/main/java/com/google/gson/metrics/BagOfPrimitivesDeserializationBenchmark.java

@@ -64,16 +64,21 @@ public void timeBagOfPrimitivesStreaming(int reps) throws IOException {
       String stringValue = null;
       while (jr.hasNext()) {
         String name = jr.nextName();
-        if (name.equals("longValue")) {
-          longValue = jr.nextLong();
-        } else if (name.equals("intValue")) {
-          intValue = jr.nextInt();
-        } else if (name.equals("booleanValue")) {
-          booleanValue = jr.nextBoolean();
-        } else if (name.equals("stringValue")) {
-          stringValue = jr.nextString();
-        } else {
-          throw new IOException("Unexpected name: " + name);
+        switch (name) {
+          case "longValue":
+            longValue = jr.nextLong();
+            break;
+          case "intValue":
+            intValue = jr.nextInt();
+            break;
+          case "booleanValue":
+            booleanValue = jr.nextBoolean();
+            break;
+          case "stringValue":
+            stringValue = jr.nextString();
+            break;
+          default:
+            throw new IOException("Unexpected name: " + name);
         }
       }
       jr.endObject();

metrics/src/main/java/com/google/gson/metrics/CollectionsDeserializationBenchmark.java

@@ -76,16 +76,21 @@ public void timeCollectionsStreaming(int reps) throws IOException {
         String stringValue = null;
         while (jr.hasNext()) {
           String name = jr.nextName();
-          if (name.equals("longValue")) {
-            longValue = jr.nextLong();
-          } else if (name.equals("intValue")) {
-            intValue = jr.nextInt();
-          } else if (name.equals("booleanValue")) {
-            booleanValue = jr.nextBoolean();
-          } else if (name.equals("stringValue")) {
-            stringValue = jr.nextString();
-          } else {
-            throw new IOException("Unexpected name: " + name);
+          switch (name) {
+            case "longValue":
+              longValue = jr.nextLong();
+              break;
+            case "intValue":
+              intValue = jr.nextInt();
+              break;
+            case "booleanValue":
+              booleanValue = jr.nextBoolean();
+              break;
+            case "stringValue":
+              stringValue = jr.nextString();
+              break;
+            default:
+              throw new IOException("Unexpected name: " + name);
           }
         }
         jr.endObject();