diff --git a/api/module-lib-current.txt b/api/module-lib-current.txt
index d802177e249b3..28319242ef2a7 100644
--- a/api/module-lib-current.txt
+++ b/api/module-lib-current.txt
@@ -1 +1,11 @@
 // Signature format: 2.0
+package android.annotation {
+
+  @java.lang.annotation.Retention(java.lang.annotation.RetentionPolicy.SOURCE) @java.lang.annotation.Target({java.lang.annotation.ElementType.METHOD, java.lang.annotation.ElementType.PARAMETER, java.lang.annotation.ElementType.FIELD}) public @interface NonNull {
+  }
+
+  @java.lang.annotation.Retention(java.lang.annotation.RetentionPolicy.SOURCE) @java.lang.annotation.Target({java.lang.annotation.ElementType.METHOD, java.lang.annotation.ElementType.PARAMETER, java.lang.annotation.ElementType.FIELD}) public @interface Nullable {
+  }
+
+}
+
diff --git a/core/java/android/annotation/NonNull.java b/core/java/android/annotation/NonNull.java
index 927f9975b3ebc..a95bf3b8061e4 100644
--- a/core/java/android/annotation/NonNull.java
+++ b/core/java/android/annotation/NonNull.java
@@ -15,14 +15,16 @@
  */
 package android.annotation;
 
-import java.lang.annotation.Retention;
-import java.lang.annotation.Target;
-
 import static java.lang.annotation.ElementType.FIELD;
 import static java.lang.annotation.ElementType.METHOD;
 import static java.lang.annotation.ElementType.PARAMETER;
 import static java.lang.annotation.RetentionPolicy.SOURCE;
 
+import android.annotation.SystemApi.Client;
+
+import java.lang.annotation.Retention;
+import java.lang.annotation.Target;
+
 /**
  * Denotes that a parameter, field or method return value can never be null.
  * <p>
@@ -34,5 +36,6 @@ import static java.lang.annotation.RetentionPolicy.SOURCE;
  */
 @Retention(SOURCE)
 @Target({METHOD, PARAMETER, FIELD})
+@SystemApi(client = Client.MODULE_LIBRARIES)
 public @interface NonNull {
 }
diff --git a/core/java/android/annotation/Nullable.java b/core/java/android/annotation/Nullable.java
index b60170b134e13..2fcddfab93758 100644
--- a/core/java/android/annotation/Nullable.java
+++ b/core/java/android/annotation/Nullable.java
@@ -15,14 +15,16 @@
  */
 package android.annotation;
 
-import java.lang.annotation.Retention;
-import java.lang.annotation.Target;
-
 import static java.lang.annotation.ElementType.FIELD;
 import static java.lang.annotation.ElementType.METHOD;
 import static java.lang.annotation.ElementType.PARAMETER;
 import static java.lang.annotation.RetentionPolicy.SOURCE;
 
+import android.annotation.SystemApi.Client;
+
+import java.lang.annotation.Retention;
+import java.lang.annotation.Target;
+
 /**
  * Denotes that a parameter, field or method return value can be null.
  * <p>
@@ -41,5 +43,6 @@ import static java.lang.annotation.RetentionPolicy.SOURCE;
  */
 @Retention(SOURCE)
 @Target({METHOD, PARAMETER, FIELD})
+@SystemApi(client = Client.MODULE_LIBRARIES)
 public @interface Nullable {
 }