Clarify release/close java docs
bug:25372187
Change-Id: Ibe13943731e53efa9408b0d6bf105063f3ce4334
diff --git a/drm/java/android/drm/DrmManagerClient.java b/drm/java/android/drm/DrmManagerClient.java
index 704f0ce..5973d3e 100644
--- a/drm/java/android/drm/DrmManagerClient.java
+++ b/drm/java/android/drm/DrmManagerClient.java
@@ -275,6 +275,10 @@
* the {@link DrmManagerClient} object is no longer needed in your
* application. After this method is called, {@link DrmManagerClient} is no
* longer usable since it has lost all of its required resource.
+ *
+ * This method was added in API 24. In API versions 16 through 23, release()
+ * should be called instead. There is no need to do anything for API
+ * versions prior to 16.
*/
@Override
public void close() {