diff --git a/core/java/com/android/internal/view/animation/FallbackLUTInterpolator.java b/core/java/com/android/internal/view/animation/FallbackLUTInterpolator.java
index 06838c9..526e2ae 100644
--- a/core/java/com/android/internal/view/animation/FallbackLUTInterpolator.java
+++ b/core/java/com/android/internal/view/animation/FallbackLUTInterpolator.java
@@ -45,7 +45,7 @@
     private static float[] createLUT(TimeInterpolator interpolator, long duration) {
         long frameIntervalNanos = Choreographer.getInstance().getFrameIntervalNanos();
         int animIntervalMs = (int) (frameIntervalNanos / TimeUtils.NANOS_PER_MS);
-        int numAnimFrames = (int) Math.ceil(duration / animIntervalMs);
+        int numAnimFrames = (int) Math.ceil(((double) duration) / animIntervalMs);
         float values[] = new float[numAnimFrames];
         float lastFrame = numAnimFrames - 1;
         for (int i = 0; i < numAnimFrames; i++) {
diff --git a/media/jni/android_media_MediaDrm.cpp b/media/jni/android_media_MediaDrm.cpp
index d9de7a9..5578416 100644
--- a/media/jni/android_media_MediaDrm.cpp
+++ b/media/jni/android_media_MediaDrm.cpp
@@ -438,9 +438,11 @@
     Entry e = s.next();
 */
 
-static KeyedVector<String8, String8> HashMapToKeyedVector(JNIEnv *env, jobject &hashMap) {
+static KeyedVector<String8, String8> HashMapToKeyedVector(
+    JNIEnv *env, jobject &hashMap, bool* pIsOK) {
     jclass clazz = gFields.stringClassId;
     KeyedVector<String8, String8> keyedVector;
+    *pIsOK = true;
 
     jobject entrySet = env->CallObjectMethod(hashMap, gFields.hashmap.entrySet);
     if (entrySet) {
@@ -451,16 +453,22 @@
                 jobject entry = env->CallObjectMethod(iterator, gFields.iterator.next);
                 if (entry) {
                     jobject obj = env->CallObjectMethod(entry, gFields.entry.getKey);
-                    if (!env->IsInstanceOf(obj, clazz)) {
+                    if (obj == NULL || !env->IsInstanceOf(obj, clazz)) {
                         jniThrowException(env, "java/lang/IllegalArgumentException",
                                           "HashMap key is not a String");
+                        env->DeleteLocalRef(entry);
+                        *pIsOK = false;
+                        break;
                     }
                     jstring jkey = static_cast<jstring>(obj);
 
                     obj = env->CallObjectMethod(entry, gFields.entry.getValue);
-                    if (!env->IsInstanceOf(obj, clazz)) {
+                    if (obj == NULL || !env->IsInstanceOf(obj, clazz)) {
                         jniThrowException(env, "java/lang/IllegalArgumentException",
                                           "HashMap value is not a String");
+                        env->DeleteLocalRef(entry);
+                        *pIsOK = false;
+                        break;
                     }
                     jstring jvalue = static_cast<jstring>(obj);
 
@@ -763,7 +771,11 @@
 
     KeyedVector<String8, String8> optParams;
     if (joptParams != NULL) {
-        optParams = HashMapToKeyedVector(env, joptParams);
+        bool isOK;
+        optParams = HashMapToKeyedVector(env, joptParams, &isOK);
+        if (!isOK) {
+            return NULL;
+        }
     }
 
     Vector<uint8_t> request;
diff --git a/native/graphics/jni/Android.mk b/native/graphics/jni/Android.mk
index b7f0fbd..91c9ac6 100644
--- a/native/graphics/jni/Android.mk
+++ b/native/graphics/jni/Android.mk
@@ -31,7 +31,7 @@
 LOCAL_CFLAGS += -Wall -Werror -Wunused -Wunreachable-code
 
 # TODO: This is to work around b/19059885. Remove after root cause is fixed
-LOCAL_LDFLAGS_arm := -Wl,--hash-style=both
+LOCAL_LDFLAGS_arm := -Wl,--hash-style=sysv
 
 include $(BUILD_SHARED_LIBRARY)