diff --git a/opengl/tools/glgen/gen b/opengl/tools/glgen/gen
index 9fa58e2..da9bb49 100755
--- a/opengl/tools/glgen/gen
+++ b/opengl/tools/glgen/gen
@@ -90,6 +90,10 @@
 
 rm src/*.class
 
+# Add UnsupportedAppUsage.java to known sources.
+mkdir -p out/android/annotation
+cp ../../../../base/core/java/android/annotation/UnsupportedAppUsage.java out/android/annotation
+
 pushd out > /dev/null
 mkdir classes
 javac -d classes    android/opengl/EGL14.java \
@@ -109,7 +113,8 @@
                     android/opengl/GLES30.java \
                     android/opengl/GLES31.java \
                     android/opengl/GLES31Ext.java \
-                    android/opengl/GLES32.java
+                    android/opengl/GLES32.java \
+                    android/annotation/UnsupportedAppUsage.java
 popd > /dev/null
 JAVA_RESULT=$?
 if [ $JAVA_RESULT -ne 0 ]; then
@@ -142,7 +147,7 @@
             echo
             SAID_PLEASE=1
         fi
-        echo "    cp $2/$3 $1"
+        echo "    cp $2/$3 $1/$3"
         echo "    (cd $1; git add $3)"
         KEEP_GENERATED=1
     fi
diff --git a/opengl/tools/glgen/stubs/egl/EGL14Header.java-if b/opengl/tools/glgen/stubs/egl/EGL14Header.java-if
index f3bf220..12728f5 100644
--- a/opengl/tools/glgen/stubs/egl/EGL14Header.java-if
+++ b/opengl/tools/glgen/stubs/egl/EGL14Header.java-if
@@ -18,6 +18,7 @@
 
 package android.opengl;
 
+import android.annotation.UnsupportedAppUsage;
 import android.graphics.SurfaceTexture;
 import android.view.Surface;
 import android.view.SurfaceView;
diff --git a/opengl/tools/glgen/stubs/egl/eglGetDisplay.java b/opengl/tools/glgen/stubs/egl/eglGetDisplay.java
index 7532abf..85f743d 100755
--- a/opengl/tools/glgen/stubs/egl/eglGetDisplay.java
+++ b/opengl/tools/glgen/stubs/egl/eglGetDisplay.java
@@ -7,6 +7,7 @@
     /**
      * {@hide}
      */
+    @UnsupportedAppUsage
     public static native EGLDisplay eglGetDisplay(
         long display_id
     );
diff --git a/opengl/tools/glgen/stubs/gles11/GLES20Header.java-if b/opengl/tools/glgen/stubs/gles11/GLES20Header.java-if
index 9ce6728..c2711aa 100644
--- a/opengl/tools/glgen/stubs/gles11/GLES20Header.java-if
+++ b/opengl/tools/glgen/stubs/gles11/GLES20Header.java-if
@@ -19,6 +19,8 @@
 
 package android.opengl;
 
+import android.annotation.UnsupportedAppUsage;
+
 /** OpenGL ES 2.0
  */
 public class GLES20 {
diff --git a/opengl/tools/glgen/stubs/gles11/glGetActiveAttrib.java b/opengl/tools/glgen/stubs/gles11/glGetActiveAttrib.java
index d66200f..b297b7a 100644
--- a/opengl/tools/glgen/stubs/gles11/glGetActiveAttrib.java
+++ b/opengl/tools/glgen/stubs/gles11/glGetActiveAttrib.java
@@ -17,6 +17,7 @@
     // C function void glGetActiveAttrib ( GLuint program, GLuint index, GLsizei bufsize, GLsizei *length, GLint *size, GLenum *type, char *name )
 
     /** @hide Method is broken, but used to be public (b/6006380) */
+    @UnsupportedAppUsage
     public static native void glGetActiveAttrib(
         int program,
         int index,
diff --git a/opengl/tools/glgen/stubs/gles11/glGetActiveUniform.java b/opengl/tools/glgen/stubs/gles11/glGetActiveUniform.java
index 8c8d5a2..f211440 100644
--- a/opengl/tools/glgen/stubs/gles11/glGetActiveUniform.java
+++ b/opengl/tools/glgen/stubs/gles11/glGetActiveUniform.java
@@ -17,6 +17,7 @@
     // C function void glGetActiveUniform ( GLuint program, GLuint index, GLsizei bufsize, GLsizei *length, GLint *size, GLenum *type, char *name )
 
     /** @hide Method is broken, but used to be public (b/6006380) */
+    @UnsupportedAppUsage
     public static native void glGetActiveUniform(
         int program,
         int index,