Merge branch 'stable-2.14' into stable-2.15

* stable-2.14:
  BranchApi: Add missing throws declaration on NotImplemented#reflog
  FormatUtil: Fix Math#round() truncation error flagged by error-prone
  ReflogIT: Add test coverage for reflog permissions
  ChangeIT: Move reflog test to ReflogIT
  ChangeIT: Fix and expand reflog test
  BranchApi: Add method to get the branch's reflog
  GetReflog: Move ReflogEntryInfo to a separate class in extension API

Change-Id: I209a4450771ebb640e6997e11d24d699ba20a033

gerrit-gwtui/src/main/java/com/google/gerrit/client/FormatUtil.java

@@ -137,7 +137,25 @@ public class FormatUtil {
     if (size == 0) {
       return Resources.C.notAvailable();
     }
-    int p = Math.abs(Math.round(delta * 100 / size));
+    int p = Math.abs(saturatedCast(delta * 100 / size));
     return p + "%";
   }
+
+  /**
+   * Returns the {@code int} nearest in value to {@code value}.
+   *
+   * @param value any {@code long} value
+   * @return the same value cast to {@code int} if it is in the range of the {@code int} type,
+   *     {@link Integer#MAX_VALUE} if it is too large, or {@link Integer#MIN_VALUE} if it is too
+   *     small
+   */
+  private static int saturatedCast(long value) {
+    if (value > Integer.MAX_VALUE) {
+      return Integer.MAX_VALUE;
+    }
+    if (value < Integer.MIN_VALUE) {
+      return Integer.MIN_VALUE;
+    }
+    return (int) value;
+  }
 }