diff --git a/rs/java/android/renderscript/BaseObj.java b/rs/java/android/renderscript/BaseObj.java
index b7e05d9..7b5514b 100644
--- a/rs/java/android/renderscript/BaseObj.java
+++ b/rs/java/android/renderscript/BaseObj.java
@@ -16,8 +16,10 @@
 
 package android.renderscript;
 
-import android.annotation.UnsupportedAppUsage;
+import android.compat.annotation.UnsupportedAppUsage;
+
 import dalvik.system.CloseGuard;
+
 import java.util.concurrent.locks.ReentrantReadWriteLock;
 
 /**
diff --git a/rs/java/android/renderscript/Element.java b/rs/java/android/renderscript/Element.java
index b8eb3a1..0941907 100644
--- a/rs/java/android/renderscript/Element.java
+++ b/rs/java/android/renderscript/Element.java
@@ -16,7 +16,7 @@
 
 package android.renderscript;
 
-import android.annotation.UnsupportedAppUsage;
+import android.compat.annotation.UnsupportedAppUsage;
 
 /**
  * <p>An Element represents one item within an {@link
diff --git a/rs/java/android/renderscript/FileA3D.java b/rs/java/android/renderscript/FileA3D.java
index 9a6b0bc..7cc2825 100644
--- a/rs/java/android/renderscript/FileA3D.java
+++ b/rs/java/android/renderscript/FileA3D.java
@@ -16,13 +16,13 @@
 
 package android.renderscript;
 
-import java.io.File;
-import java.io.InputStream;
-
-import android.annotation.UnsupportedAppUsage;
+import android.compat.annotation.UnsupportedAppUsage;
 import android.content.res.AssetManager;
 import android.content.res.Resources;
 
+import java.io.File;
+import java.io.InputStream;
+
 /**
  * @hide
  * @deprecated in API 16
diff --git a/rs/java/android/renderscript/Font.java b/rs/java/android/renderscript/Font.java
index 583350e..df9d801 100644
--- a/rs/java/android/renderscript/Font.java
+++ b/rs/java/android/renderscript/Font.java
@@ -16,17 +16,16 @@
 
 package android.renderscript;
 
+import android.compat.annotation.UnsupportedAppUsage;
+import android.content.res.AssetManager;
+import android.content.res.Resources;
+import android.os.Environment;
+
 import java.io.File;
 import java.io.InputStream;
 import java.util.HashMap;
 import java.util.Map;
 
-import android.os.Environment;
-
-import android.annotation.UnsupportedAppUsage;
-import android.content.res.AssetManager;
-import android.content.res.Resources;
-
 /**
  * @hide
  * @deprecated in API 16
diff --git a/rs/java/android/renderscript/Matrix4f.java b/rs/java/android/renderscript/Matrix4f.java
index 026c9fb..a9469c9 100644
--- a/rs/java/android/renderscript/Matrix4f.java
+++ b/rs/java/android/renderscript/Matrix4f.java
@@ -16,8 +16,7 @@
 
 package android.renderscript;
 
-import android.annotation.UnsupportedAppUsage;
-import java.lang.Math;
+import android.compat.annotation.UnsupportedAppUsage;
 
 
 /**
diff --git a/rs/java/android/renderscript/Mesh.java b/rs/java/android/renderscript/Mesh.java
index 5321dcb..826225a 100644
--- a/rs/java/android/renderscript/Mesh.java
+++ b/rs/java/android/renderscript/Mesh.java
@@ -16,7 +16,8 @@
 
 package android.renderscript;
 
-import android.annotation.UnsupportedAppUsage;
+import android.compat.annotation.UnsupportedAppUsage;
+
 import java.util.Vector;
 
 /**
diff --git a/rs/java/android/renderscript/Program.java b/rs/java/android/renderscript/Program.java
index e28d646..ff07218 100644
--- a/rs/java/android/renderscript/Program.java
+++ b/rs/java/android/renderscript/Program.java
@@ -17,14 +17,14 @@
 package android.renderscript;
 
 
+import android.compat.annotation.UnsupportedAppUsage;
+import android.content.res.Resources;
+import android.util.Log;
+
 import java.io.IOException;
 import java.io.InputStream;
 import java.io.UnsupportedEncodingException;
 
-import android.annotation.UnsupportedAppUsage;
-import android.content.res.Resources;
-import android.util.Log;
-
 
 /**
  * @hide
diff --git a/rs/java/android/renderscript/ProgramFragment.java b/rs/java/android/renderscript/ProgramFragment.java
index 3dde9b6..8805312 100644
--- a/rs/java/android/renderscript/ProgramFragment.java
+++ b/rs/java/android/renderscript/ProgramFragment.java
@@ -16,7 +16,7 @@
 
 package android.renderscript;
 
-import android.annotation.UnsupportedAppUsage;
+import android.compat.annotation.UnsupportedAppUsage;
 
 
 /**
diff --git a/rs/java/android/renderscript/ProgramFragmentFixedFunction.java b/rs/java/android/renderscript/ProgramFragmentFixedFunction.java
index d05d41d..c741ce6 100644
--- a/rs/java/android/renderscript/ProgramFragmentFixedFunction.java
+++ b/rs/java/android/renderscript/ProgramFragmentFixedFunction.java
@@ -16,7 +16,7 @@
 
 package android.renderscript;
 
-import android.annotation.UnsupportedAppUsage;
+import android.compat.annotation.UnsupportedAppUsage;
 
 
 /**
diff --git a/rs/java/android/renderscript/ProgramRaster.java b/rs/java/android/renderscript/ProgramRaster.java
index 33000ac..a21696c 100644
--- a/rs/java/android/renderscript/ProgramRaster.java
+++ b/rs/java/android/renderscript/ProgramRaster.java
@@ -16,7 +16,7 @@
 
 package android.renderscript;
 
-import android.annotation.UnsupportedAppUsage;
+import android.compat.annotation.UnsupportedAppUsage;
 
 
 /**
diff --git a/rs/java/android/renderscript/ProgramStore.java b/rs/java/android/renderscript/ProgramStore.java
index 622fe21..7e61347 100644
--- a/rs/java/android/renderscript/ProgramStore.java
+++ b/rs/java/android/renderscript/ProgramStore.java
@@ -16,7 +16,7 @@
 
 package android.renderscript;
 
-import android.annotation.UnsupportedAppUsage;
+import android.compat.annotation.UnsupportedAppUsage;
 
 
 /**
diff --git a/rs/java/android/renderscript/ProgramVertex.java b/rs/java/android/renderscript/ProgramVertex.java
index 83d9ea7..9257234 100644
--- a/rs/java/android/renderscript/ProgramVertex.java
+++ b/rs/java/android/renderscript/ProgramVertex.java
@@ -38,7 +38,7 @@
  **/
 package android.renderscript;
 
-import android.annotation.UnsupportedAppUsage;
+import android.compat.annotation.UnsupportedAppUsage;
 
 
 /**
diff --git a/rs/java/android/renderscript/ProgramVertexFixedFunction.java b/rs/java/android/renderscript/ProgramVertexFixedFunction.java
index 579d3bb..03c2eaf 100644
--- a/rs/java/android/renderscript/ProgramVertexFixedFunction.java
+++ b/rs/java/android/renderscript/ProgramVertexFixedFunction.java
@@ -16,7 +16,7 @@
 
 package android.renderscript;
 
-import android.annotation.UnsupportedAppUsage;
+import android.compat.annotation.UnsupportedAppUsage;
 
 
 /**
diff --git a/rs/java/android/renderscript/RSSurfaceView.java b/rs/java/android/renderscript/RSSurfaceView.java
index 561373c..6bdde38 100644
--- a/rs/java/android/renderscript/RSSurfaceView.java
+++ b/rs/java/android/renderscript/RSSurfaceView.java
@@ -16,7 +16,7 @@
 
 package android.renderscript;
 
-import android.annotation.UnsupportedAppUsage;
+import android.compat.annotation.UnsupportedAppUsage;
 import android.content.Context;
 import android.util.AttributeSet;
 import android.view.SurfaceHolder;
diff --git a/rs/java/android/renderscript/RenderScript.java b/rs/java/android/renderscript/RenderScript.java
index f4c2777..46c49e5 100644
--- a/rs/java/android/renderscript/RenderScript.java
+++ b/rs/java/android/renderscript/RenderScript.java
@@ -16,7 +16,7 @@
 
 package android.renderscript;
 
-import android.annotation.UnsupportedAppUsage;
+import android.compat.annotation.UnsupportedAppUsage;
 import android.content.Context;
 import android.content.res.AssetManager;
 import android.graphics.Bitmap;
diff --git a/rs/java/android/renderscript/RenderScriptCacheDir.java b/rs/java/android/renderscript/RenderScriptCacheDir.java
index 1797bef..862d032 100644
--- a/rs/java/android/renderscript/RenderScriptCacheDir.java
+++ b/rs/java/android/renderscript/RenderScriptCacheDir.java
@@ -16,7 +16,8 @@
 
 package android.renderscript;
 
-import android.annotation.UnsupportedAppUsage;
+import android.compat.annotation.UnsupportedAppUsage;
+
 import java.io.File;
 
 /**
diff --git a/rs/java/android/renderscript/RenderScriptGL.java b/rs/java/android/renderscript/RenderScriptGL.java
index 6fac83e..dafaf36 100644
--- a/rs/java/android/renderscript/RenderScriptGL.java
+++ b/rs/java/android/renderscript/RenderScriptGL.java
@@ -16,7 +16,7 @@
 
 package android.renderscript;
 
-import android.annotation.UnsupportedAppUsage;
+import android.compat.annotation.UnsupportedAppUsage;
 import android.content.Context;
 import android.graphics.SurfaceTexture;
 import android.view.Surface;
diff --git a/rs/java/android/renderscript/Script.java b/rs/java/android/renderscript/Script.java
index 9ad9aea..d1d3a76 100644
--- a/rs/java/android/renderscript/Script.java
+++ b/rs/java/android/renderscript/Script.java
@@ -16,7 +16,7 @@
 
 package android.renderscript;
 
-import android.annotation.UnsupportedAppUsage;
+import android.compat.annotation.UnsupportedAppUsage;
 import android.util.SparseArray;
 
 /**