diff --git a/core/java/android/service/contentcapture/DataShareReadAdapter.java b/core/java/android/service/contentcapture/DataShareReadAdapter.java
index a481ec8382edc..8cd9eea1e6e09 100644
--- a/core/java/android/service/contentcapture/DataShareReadAdapter.java
+++ b/core/java/android/service/contentcapture/DataShareReadAdapter.java
@@ -20,6 +20,7 @@ import android.annotation.NonNull;
 import android.annotation.SystemApi;
 import android.annotation.TestApi;
 import android.os.ParcelFileDescriptor;
+import android.view.contentcapture.ContentCaptureManager.DataShareError;
 
 /**
  * Adapter class to be used for the Content Capture Service app to propagate the status of the
@@ -46,5 +47,5 @@ public interface DataShareReadAdapter {
      * these 2 events is not defined, and it's important that the service treats end of stream
      * correctly in this situation.
      **/
-    void onError(int errorCode);
+    void onError(@DataShareError int errorCode);
 }
diff --git a/core/java/android/view/contentcapture/ContentCaptureManager.java b/core/java/android/view/contentcapture/ContentCaptureManager.java
index b7b54c8c74b9b..b9889276ae0b5 100644
--- a/core/java/android/view/contentcapture/ContentCaptureManager.java
+++ b/core/java/android/view/contentcapture/ContentCaptureManager.java
@@ -216,6 +216,15 @@ public final class ContentCaptureManager {
     /** Request has been interrupted because of data share session timeout. */
     public static final int DATA_SHARE_ERROR_TIMEOUT_INTERRUPTED = 3;
 
+    /** @hide */
+    @IntDef(flag = false, value = {
+            DATA_SHARE_ERROR_UNKNOWN,
+            DATA_SHARE_ERROR_CONCURRENT_REQUEST,
+            DATA_SHARE_ERROR_TIMEOUT_INTERRUPTED
+    })
+    @Retention(RetentionPolicy.SOURCE)
+    public @interface DataShareError {}
+
     /** @hide */
     public static final int RESULT_CODE_OK = 0;
     /** @hide */
diff --git a/core/java/android/view/contentcapture/DataShareWriteAdapter.java b/core/java/android/view/contentcapture/DataShareWriteAdapter.java
index 2beaededf8b1e..3b5b756553d91 100644
--- a/core/java/android/view/contentcapture/DataShareWriteAdapter.java
+++ b/core/java/android/view/contentcapture/DataShareWriteAdapter.java
@@ -18,6 +18,7 @@ package android.view.contentcapture;
 
 import android.annotation.NonNull;
 import android.os.ParcelFileDescriptor;
+import android.view.contentcapture.ContentCaptureManager.DataShareError;
 
 /** Adapter class used by apps to share data with the Content Capture service. */
 public interface DataShareWriteAdapter {
@@ -42,7 +43,7 @@ public interface DataShareWriteAdapter {
      *
      * @param errorCode the error code corresponding to an ERROR_* value.
      */
-    default void onError(int errorCode) {
+    default void onError(@DataShareError int errorCode) {
         /* do nothing - stub */
     }
 }