[SP 2025-09-01] Limits the display name to 1024 characters

Bug: 418773283
Test: cts
Flag: EXEMPT bugfix
Change-Id: I29e050c498e813e291af213ce4ddc590559c8b7d

1 files changed, 7 insertions, 0 deletions

diff --git a/core/java/android/companion/AssociationRequest.java b/core/java/android/companion/AssociationRequest.java
index 9641d7e69d4a..625270b5d473 100644
--- a/core/java/android/companion/AssociationRequest.java
+++ b/core/java/android/companion/AssociationRequest.java
@@ -274,6 +274,8 @@ public final class AssociationRequest implements Parcelable {
      */
     private boolean mSkipPrompt;
 
+    private static final int DISPLAY_NAME_LENGTH_LIMIT = 1024;
+
     /**
      * The device icon displayed in selfManaged association dialog.
      * @hide
@@ -501,6 +503,11 @@ public final class AssociationRequest implements Parcelable {
         public Builder setDisplayName(@NonNull CharSequence displayName) {
             checkNotUsed();
             mDisplayName = requireNonNull(displayName);
+            if (displayName.length() > DISPLAY_NAME_LENGTH_LIMIT) {
+                throw new IllegalArgumentException("Length of the display name must be at most "
+                        + DISPLAY_NAME_LENGTH_LIMIT + " characters");
+            }
+
             return this;
         }