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diff --git a/java/com/google/gerrit/truth/ListSubject.java b/java/com/google/gerrit/truth/ListSubject.java
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+// Copyright (C) 2016 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.google.gerrit.truth;
+
+import static com.google.common.base.Preconditions.checkArgument;
+import static com.google.common.truth.Fact.fact;
+import static com.google.common.truth.Truth.assertAbout;
+
+import com.google.common.truth.FailureMetadata;
+import com.google.common.truth.IterableSubject;
+import com.google.common.truth.Subject;
+import java.util.List;
+import java.util.function.Function;
+
+public class ListSubject<S extends Subject<S, E>, E> extends IterableSubject {
+
+  private final Function<E, S> elementAssertThatFunction;
+
+  @SuppressWarnings("unchecked")
+  public static <S extends Subject<S, E>, E> ListSubject<S, E> assertThat(
+      List<E> list, Function<E, S> elementAssertThatFunction) {
+    // The ListSubjectFactory always returns ListSubjects. -> Casting is appropriate.
+    return (ListSubject<S, E>)
+        assertAbout(new ListSubjectFactory<>(elementAssertThatFunction)).that(list);
+  }
+
+  private ListSubject(
+      FailureMetadata failureMetadata, List<E> list, Function<E, S> elementAssertThatFunction) {
+    super(failureMetadata, list);
+    this.elementAssertThatFunction = elementAssertThatFunction;
+  }
+
+  public S element(int index) {
+    checkArgument(index >= 0, "index(%s) must be >= 0", index);
+    isNotNull();
+    List<E> list = getActualList();
+    if (index >= list.size()) {
+      failWithoutActual(fact("expected to have element at index", index));
+    }
+    return elementAssertThatFunction.apply(list.get(index));
+  }
+
+  public S onlyElement() {
+    isNotNull();
+    hasSize(1);
+    return element(0);
+  }
+
+  public S lastElement() {
+    isNotNull();
+    isNotEmpty();
+    List<E> list = getActualList();
+    return element(list.size() - 1);
+  }
+
+  @SuppressWarnings("unchecked")
+  private List<E> getActualList() {
+    // The constructor only accepts lists. -> Casting is appropriate.
+    return (List<E>) actual();
+  }
+
+  @SuppressWarnings("unchecked")
+  @Override
+  public ListSubject<S, E> named(String s, Object... objects) {
+    // This object is returned which is of type ListSubject. -> Casting is appropriate.
+    return (ListSubject<S, E>) super.named(s, objects);
+  }
+
+  private static class ListSubjectFactory<S extends Subject<S, T>, T>
+      implements Subject.Factory<IterableSubject, Iterable<?>> {
+
+    private Function<T, S> elementAssertThatFunction;
+
+    ListSubjectFactory(Function<T, S> elementAssertThatFunction) {
+      this.elementAssertThatFunction = elementAssertThatFunction;
+    }
+
+    @SuppressWarnings("unchecked")
+    @Override
+    public ListSubject<S, T> createSubject(FailureMetadata failureMetadata, Iterable<?> objects) {
+      // The constructor of ListSubject only accepts lists. -> Casting is appropriate.
+      return new ListSubject<>(failureMetadata, (List<T>) objects, elementAssertThatFunction);
+    }
+  }
+}