diff --git a/android/guava-tests/test/com/google/common/primitives/LongsTest.java b/android/guava-tests/test/com/google/common/primitives/LongsTest.java
index a86f8aca965e..9f4bfd562e56 100644
--- a/android/guava-tests/test/com/google/common/primitives/LongsTest.java
+++ b/android/guava-tests/test/com/google/common/primitives/LongsTest.java
@@ -648,6 +648,9 @@ public void testTryParse() {
     assertThat(Longs.tryParse("-")).isNull();
     assertThat(Longs.tryParse("+1")).isNull();
     assertThat(Longs.tryParse("999999999999999999999999")).isNull();
+    assertThat(Longs.tryParse(" ")).isNull();
+    assertThat(Longs.tryParse("1 ")).isNull();
+    assertThat(Longs.tryParse(" 1")).isNull();
     assertWithMessage("Max long + 1")
         .that(Longs.tryParse(BigInteger.valueOf(MAX_VALUE).add(BigInteger.ONE).toString()))
         .isNull();
diff --git a/guava-tests/test/com/google/common/primitives/LongsTest.java b/guava-tests/test/com/google/common/primitives/LongsTest.java
index a86f8aca965e..9f4bfd562e56 100644
--- a/guava-tests/test/com/google/common/primitives/LongsTest.java
+++ b/guava-tests/test/com/google/common/primitives/LongsTest.java
@@ -648,6 +648,9 @@ public void testTryParse() {
     assertThat(Longs.tryParse("-")).isNull();
     assertThat(Longs.tryParse("+1")).isNull();
     assertThat(Longs.tryParse("999999999999999999999999")).isNull();
+    assertThat(Longs.tryParse(" ")).isNull();
+    assertThat(Longs.tryParse("1 ")).isNull();
+    assertThat(Longs.tryParse(" 1")).isNull();
     assertWithMessage("Max long + 1")
         .that(Longs.tryParse(BigInteger.valueOf(MAX_VALUE).add(BigInteger.ONE).toString()))
         .isNull();