diff --git a/core/jni/android_graphics_Canvas.cpp b/core/jni/android_graphics_Canvas.cpp
index 32a877ae3398c..3d96fab9709d4 100644
--- a/core/jni/android_graphics_Canvas.cpp
+++ b/core/jni/android_graphics_Canvas.cpp
@@ -749,57 +749,57 @@ static void freeTextLayoutCaches(JNIEnv* env, jobject) {
 static const JNINativeMethod gMethods[] = {
     {"finalizer", "(J)V", (void*) CanvasJNI::finalizer},
     {"initRaster", "(Landroid/graphics/Bitmap;)J", (void*) CanvasJNI::initRaster},
-    {"native_setBitmap", "(JLandroid/graphics/Bitmap;)V", (void*) CanvasJNI::setBitmap},
-    {"native_isOpaque","(J)Z", (void*) CanvasJNI::isOpaque},
-    {"native_getWidth","(J)I", (void*) CanvasJNI::getWidth},
-    {"native_getHeight","(J)I", (void*) CanvasJNI::getHeight},
-    {"native_setHighContrastText","(JZ)V", (void*) CanvasJNI::setHighContrastText},
-    {"native_save","(JI)I", (void*) CanvasJNI::save},
-    {"native_saveLayer","(JFFFFJI)I", (void*) CanvasJNI::saveLayer},
-    {"native_saveLayerAlpha","(JFFFFII)I", (void*) CanvasJNI::saveLayerAlpha},
-    {"native_getSaveCount","(J)I", (void*) CanvasJNI::getSaveCount},
-    {"native_restore","(JZ)V", (void*) CanvasJNI::restore},
-    {"native_restoreToCount","(JIZ)V", (void*) CanvasJNI::restoreToCount},
-    {"native_getCTM", "(JJ)V", (void*)CanvasJNI::getCTM},
-    {"native_setMatrix","(JJ)V", (void*) CanvasJNI::setMatrix},
-    {"native_concat","(JJ)V", (void*) CanvasJNI::concat},
-    {"native_rotate","(JF)V", (void*) CanvasJNI::rotate},
-    {"native_scale","(JFF)V", (void*) CanvasJNI::scale},
-    {"native_skew","(JFF)V", (void*) CanvasJNI::skew},
-    {"native_translate","(JFF)V", (void*) CanvasJNI::translate},
-    {"native_getClipBounds","(JLandroid/graphics/Rect;)Z", (void*) CanvasJNI::getClipBounds},
-    {"native_quickReject","(JJ)Z", (void*) CanvasJNI::quickRejectPath},
-    {"native_quickReject","(JFFFF)Z", (void*)CanvasJNI::quickRejectRect},
-    {"native_clipRect","(JFFFFI)Z", (void*) CanvasJNI::clipRect},
-    {"native_clipPath","(JJI)Z", (void*) CanvasJNI::clipPath},
-    {"native_clipRegion","(JJI)Z", (void*) CanvasJNI::clipRegion},
-    {"native_drawColor","(JII)V", (void*) CanvasJNI::drawColor},
-    {"native_drawPaint","(JJ)V", (void*) CanvasJNI::drawPaint},
-    {"native_drawPoint", "(JFFJ)V", (void*) CanvasJNI::drawPoint},
-    {"native_drawPoints", "(J[FIIJ)V", (void*) CanvasJNI::drawPoints},
-    {"native_drawLine", "(JFFFFJ)V", (void*) CanvasJNI::drawLine},
-    {"native_drawLines", "(J[FIIJ)V", (void*) CanvasJNI::drawLines},
-    {"native_drawRect","(JFFFFJ)V", (void*) CanvasJNI::drawRect},
-    {"native_drawRegion", "(JJJ)V", (void*) CanvasJNI::drawRegion },
-    {"native_drawRoundRect","(JFFFFFFJ)V", (void*) CanvasJNI::drawRoundRect},
-    {"native_drawCircle","(JFFFJ)V", (void*) CanvasJNI::drawCircle},
-    {"native_drawOval","(JFFFFJ)V", (void*) CanvasJNI::drawOval},
-    {"native_drawArc","(JFFFFFFZJ)V", (void*) CanvasJNI::drawArc},
-    {"native_drawPath","(JJJ)V", (void*) CanvasJNI::drawPath},
-    {"nativeDrawVertices", "(JII[FI[FI[II[SIIJ)V", (void*)CanvasJNI::drawVertices},
-    {"native_drawNinePatch", "(JJJFFFFJII)V", (void*)CanvasJNI::drawNinePatch},
-    {"native_drawBitmap","(JLandroid/graphics/Bitmap;FFJIII)V", (void*) CanvasJNI::drawBitmap},
-    {"nativeDrawBitmapMatrix", "(JLandroid/graphics/Bitmap;JJ)V", (void*)CanvasJNI::drawBitmapMatrix},
-    {"native_drawBitmap","(JLandroid/graphics/Bitmap;FFFFFFFFJII)V", (void*) CanvasJNI::drawBitmapRect},
-    {"native_drawBitmap", "(J[IIIFFIIZJ)V", (void*)CanvasJNI::drawBitmapArray},
-    {"nativeDrawBitmapMesh", "(JLandroid/graphics/Bitmap;II[FI[IIJ)V", (void*)CanvasJNI::drawBitmapMesh},
-    {"native_drawText","(J[CIIFFIJJ)V", (void*) CanvasJNI::drawTextChars},
-    {"native_drawText","(JLjava/lang/String;IIFFIJJ)V", (void*) CanvasJNI::drawTextString},
-    {"native_drawTextRun","(J[CIIIIFFZJJ)V", (void*) CanvasJNI::drawTextRunChars},
-    {"native_drawTextRun","(JLjava/lang/String;IIIIFFZJJ)V", (void*) CanvasJNI::drawTextRunString},
-    {"native_drawTextOnPath","(J[CIIJFFIJJ)V", (void*) CanvasJNI::drawTextOnPathChars},
-    {"native_drawTextOnPath","(JLjava/lang/String;JFFIJJ)V", (void*) CanvasJNI::drawTextOnPathString},
-    {"nativeSetDrawFilter", "(JJ)V", (void*) CanvasJNI::setDrawFilter},
+    {"native_setBitmap", "!(JLandroid/graphics/Bitmap;)V", (void*) CanvasJNI::setBitmap},
+    {"native_isOpaque","!(J)Z", (void*) CanvasJNI::isOpaque},
+    {"native_getWidth","!(J)I", (void*) CanvasJNI::getWidth},
+    {"native_getHeight","!(J)I", (void*) CanvasJNI::getHeight},
+    {"native_setHighContrastText","!(JZ)V", (void*) CanvasJNI::setHighContrastText},
+    {"native_save","!(JI)I", (void*) CanvasJNI::save},
+    {"native_saveLayer","!(JFFFFJI)I", (void*) CanvasJNI::saveLayer},
+    {"native_saveLayerAlpha","!(JFFFFII)I", (void*) CanvasJNI::saveLayerAlpha},
+    {"native_getSaveCount","!(J)I", (void*) CanvasJNI::getSaveCount},
+    {"native_restore","!(JZ)V", (void*) CanvasJNI::restore},
+    {"native_restoreToCount","!(JIZ)V", (void*) CanvasJNI::restoreToCount},
+    {"native_getCTM", "!(JJ)V", (void*)CanvasJNI::getCTM},
+    {"native_setMatrix","!(JJ)V", (void*) CanvasJNI::setMatrix},
+    {"native_concat","!(JJ)V", (void*) CanvasJNI::concat},
+    {"native_rotate","!(JF)V", (void*) CanvasJNI::rotate},
+    {"native_scale","!(JFF)V", (void*) CanvasJNI::scale},
+    {"native_skew","!(JFF)V", (void*) CanvasJNI::skew},
+    {"native_translate","!(JFF)V", (void*) CanvasJNI::translate},
+    {"native_getClipBounds","!(JLandroid/graphics/Rect;)Z", (void*) CanvasJNI::getClipBounds},
+    {"native_quickReject","!(JJ)Z", (void*) CanvasJNI::quickRejectPath},
+    {"native_quickReject","!(JFFFF)Z", (void*)CanvasJNI::quickRejectRect},
+    {"native_clipRect","!(JFFFFI)Z", (void*) CanvasJNI::clipRect},
+    {"native_clipPath","!(JJI)Z", (void*) CanvasJNI::clipPath},
+    {"native_clipRegion","!(JJI)Z", (void*) CanvasJNI::clipRegion},
+    {"native_drawColor","!(JII)V", (void*) CanvasJNI::drawColor},
+    {"native_drawPaint","!(JJ)V", (void*) CanvasJNI::drawPaint},
+    {"native_drawPoint", "!(JFFJ)V", (void*) CanvasJNI::drawPoint},
+    {"native_drawPoints", "!(J[FIIJ)V", (void*) CanvasJNI::drawPoints},
+    {"native_drawLine", "!(JFFFFJ)V", (void*) CanvasJNI::drawLine},
+    {"native_drawLines", "!(J[FIIJ)V", (void*) CanvasJNI::drawLines},
+    {"native_drawRect","!(JFFFFJ)V", (void*) CanvasJNI::drawRect},
+    {"native_drawRegion", "!(JJJ)V", (void*) CanvasJNI::drawRegion },
+    {"native_drawRoundRect","!(JFFFFFFJ)V", (void*) CanvasJNI::drawRoundRect},
+    {"native_drawCircle","!(JFFFJ)V", (void*) CanvasJNI::drawCircle},
+    {"native_drawOval","!(JFFFFJ)V", (void*) CanvasJNI::drawOval},
+    {"native_drawArc","!(JFFFFFFZJ)V", (void*) CanvasJNI::drawArc},
+    {"native_drawPath","!(JJJ)V", (void*) CanvasJNI::drawPath},
+    {"nativeDrawVertices", "!(JII[FI[FI[II[SIIJ)V", (void*)CanvasJNI::drawVertices},
+    {"native_drawNinePatch", "!(JJJFFFFJII)V", (void*)CanvasJNI::drawNinePatch},
+    {"native_drawBitmap","!(JLandroid/graphics/Bitmap;FFJIII)V", (void*) CanvasJNI::drawBitmap},
+    {"nativeDrawBitmapMatrix", "!(JLandroid/graphics/Bitmap;JJ)V", (void*)CanvasJNI::drawBitmapMatrix},
+    {"native_drawBitmap","!(JLandroid/graphics/Bitmap;FFFFFFFFJII)V", (void*) CanvasJNI::drawBitmapRect},
+    {"native_drawBitmap", "!(J[IIIFFIIZJ)V", (void*)CanvasJNI::drawBitmapArray},
+    {"nativeDrawBitmapMesh", "!(JLandroid/graphics/Bitmap;II[FI[IIJ)V", (void*)CanvasJNI::drawBitmapMesh},
+    {"native_drawText","!(J[CIIFFIJJ)V", (void*) CanvasJNI::drawTextChars},
+    {"native_drawText","!(JLjava/lang/String;IIFFIJJ)V", (void*) CanvasJNI::drawTextString},
+    {"native_drawTextRun","!(J[CIIIIFFZJJ)V", (void*) CanvasJNI::drawTextRunChars},
+    {"native_drawTextRun","!(JLjava/lang/String;IIIIFFZJJ)V", (void*) CanvasJNI::drawTextRunString},
+    {"native_drawTextOnPath","!(J[CIIJFFIJJ)V", (void*) CanvasJNI::drawTextOnPathChars},
+    {"native_drawTextOnPath","!(JLjava/lang/String;JFFIJJ)V", (void*) CanvasJNI::drawTextOnPathString},
+    {"nativeSetDrawFilter", "!(JJ)V", (void*) CanvasJNI::setDrawFilter},
     {"freeCaches", "()V", (void*) CanvasJNI::freeCaches},
     {"freeTextLayoutCaches", "()V", (void*) CanvasJNI::freeTextLayoutCaches}
 };
diff --git a/core/jni/android_view_DisplayEventReceiver.cpp b/core/jni/android_view_DisplayEventReceiver.cpp
index 437bd192b70a1..24eb961bd4314 100644
--- a/core/jni/android_view_DisplayEventReceiver.cpp
+++ b/core/jni/android_view_DisplayEventReceiver.cpp
@@ -267,7 +267,7 @@ static const JNINativeMethod gMethods[] = {
     { "nativeDispose",
             "(J)V",
             (void*)nativeDispose },
-    { "nativeScheduleVsync", "(J)V",
+    { "nativeScheduleVsync", "!(J)V",
             (void*)nativeScheduleVsync }
 };
 
diff --git a/core/jni/android_view_DisplayListCanvas.cpp b/core/jni/android_view_DisplayListCanvas.cpp
index 460c1a1a2ab93..b64acc32e6348 100644
--- a/core/jni/android_view_DisplayListCanvas.cpp
+++ b/core/jni/android_view_DisplayListCanvas.cpp
@@ -174,24 +174,24 @@ android_app_ActivityThread_dumpGraphics(JNIEnv* env, jobject clazz, jobject java
 const char* const kClassPathName = "android/view/DisplayListCanvas";
 
 static JNINativeMethod gMethods[] = {
-    { "nIsAvailable",       "()Z",             (void*) android_view_DisplayListCanvas_isAvailable },
-    { "nInsertReorderBarrier","(JZ)V",         (void*) android_view_DisplayListCanvas_insertReorderBarrier },
+    { "nIsAvailable",       "!()Z",             (void*) android_view_DisplayListCanvas_isAvailable },
+    { "nInsertReorderBarrier","!(JZ)V",         (void*) android_view_DisplayListCanvas_insertReorderBarrier },
 
-    { "nCallDrawGLFunction", "(JJ)V",          (void*) android_view_DisplayListCanvas_callDrawGLFunction },
+    { "nCallDrawGLFunction", "!(JJ)V",          (void*) android_view_DisplayListCanvas_callDrawGLFunction },
 
-    { "nDrawRoundRect",     "(JJJJJJJJ)V",     (void*) android_view_DisplayListCanvas_drawRoundRectProps },
-    { "nDrawCircle",        "(JJJJJ)V",        (void*) android_view_DisplayListCanvas_drawCircleProps },
+    { "nDrawRoundRect",     "!(JJJJJJJJ)V",     (void*) android_view_DisplayListCanvas_drawRoundRectProps },
+    { "nDrawCircle",        "!(JJJJJ)V",        (void*) android_view_DisplayListCanvas_drawCircleProps },
 
-    { "nFinishRecording",   "(J)J",            (void*) android_view_DisplayListCanvas_finishRecording },
-    { "nDrawRenderNode",    "(JJ)V",           (void*) android_view_DisplayListCanvas_drawRenderNode },
+    { "nFinishRecording",   "!(J)J",            (void*) android_view_DisplayListCanvas_finishRecording },
+    { "nDrawRenderNode",    "!(JJ)V",           (void*) android_view_DisplayListCanvas_drawRenderNode },
 
-    { "nCreateDisplayListCanvas", "(II)J",     (void*) android_view_DisplayListCanvas_createDisplayListCanvas },
-    { "nResetDisplayListCanvas", "(JII)V",     (void*) android_view_DisplayListCanvas_resetDisplayListCanvas },
+    { "nCreateDisplayListCanvas", "!(II)J",     (void*) android_view_DisplayListCanvas_createDisplayListCanvas },
+    { "nResetDisplayListCanvas", "!(JII)V",     (void*) android_view_DisplayListCanvas_resetDisplayListCanvas },
 
-    { "nDrawLayer",               "(JJ)V",     (void*) android_view_DisplayListCanvas_drawLayer },
+    { "nDrawLayer",               "!(JJ)V",     (void*) android_view_DisplayListCanvas_drawLayer },
 
-    { "nGetMaximumTextureWidth",  "()I",       (void*) android_view_DisplayListCanvas_getMaxTextureWidth },
-    { "nGetMaximumTextureHeight", "()I",       (void*) android_view_DisplayListCanvas_getMaxTextureHeight },
+    { "nGetMaximumTextureWidth",  "!()I",       (void*) android_view_DisplayListCanvas_getMaxTextureWidth },
+    { "nGetMaximumTextureHeight", "!()I",       (void*) android_view_DisplayListCanvas_getMaxTextureHeight },
 };
 
 static JNINativeMethod gActivityThreadMethods[] = {