diff --git a/jre_emul/Classes/com/google/j2objc/net/IosHttpURLConnection.java b/jre_emul/Classes/com/google/j2objc/net/IosHttpURLConnection.java
index 098fbea6e0..7fc6c4de58 100644
--- a/jre_emul/Classes/com/google/j2objc/net/IosHttpURLConnection.java
+++ b/jre_emul/Classes/com/google/j2objc/net/IosHttpURLConnection.java
@@ -610,12 +610,13 @@ private native void makeRequest() throws IOException /*-[
     // The HttpURLConnection headerFields map uses a null key for Status-Line.
     NSString *statusLine = [NSString stringWithFormat:@"HTTP/1.1 %d %@", responseCode,
         self->responseMessage_];
-    [self addHeaderWithNSString:nil withNSString:statusLine];
+    ComGoogleJ2objcNetIosHttpURLConnection_addHeaderWithNSString_withNSString_(
+        self, nil, statusLine);
 
     // Copy remaining response headers.
     [response.allHeaderFields enumerateKeysAndObjectsUsingBlock:
         ^(id key, id value, BOOL *stop) {
-      [self addHeaderWithNSString:key withNSString:value];
+      ComGoogleJ2objcNetIosHttpURLConnection_addHeaderWithNSString_withNSString_(self, key, value);
     }];
 
     if (response.statusCode >= JavaNetHttpURLConnection_HTTP_BAD_REQUEST) {
diff --git a/jre_emul/Classes/com/google/j2objc/util/NativeTimeZone.java b/jre_emul/Classes/com/google/j2objc/util/NativeTimeZone.java
index d442c10bb8..464aa0ec19 100644
--- a/jre_emul/Classes/com/google/j2objc/util/NativeTimeZone.java
+++ b/jre_emul/Classes/com/google/j2objc/util/NativeTimeZone.java
@@ -69,13 +69,13 @@ public static native String[] getAvailableNativeTimeZoneNames() /*-[
 
 
   public static native NativeTimeZone get(String name) /*-[
-    return [ComGoogleJ2objcUtilNativeTimeZone fromNativeTimeZoneWithId:
-        [NSTimeZone timeZoneWithName:name]];
+    return ComGoogleJ2objcUtilNativeTimeZone_fromNativeTimeZoneWithId_(
+        [NSTimeZone timeZoneWithName:name]);
   ]-*/;
 
   public static native NativeTimeZone getDefaultNativeTimeZone() /*-[
-    return [ComGoogleJ2objcUtilNativeTimeZone fromNativeTimeZoneWithId:
-        [NSTimeZone defaultTimeZone]];
+    return ComGoogleJ2objcUtilNativeTimeZone_fromNativeTimeZoneWithId_(
+        [NSTimeZone defaultTimeZone]);
   ]-*/;
 
   private static native NativeTimeZone fromNativeTimeZone(Object nativeTimeZone) /*-[
diff --git a/jre_emul/Classes/java/lang/Runtime.java b/jre_emul/Classes/java/lang/Runtime.java
index f4d1f2165a..d8771340c8 100644
--- a/jre_emul/Classes/java/lang/Runtime.java
+++ b/jre_emul/Classes/java/lang/Runtime.java
@@ -110,7 +110,7 @@ private void runShutdownHooks() {
 
   private native void registerShutdownHooks() /*-[
     atexit_b(^{
-      [self runShutdownHooks];
+      JavaLangRuntime_runShutdownHooks(self);
     });
   ]-*/;
 
diff --git a/jre_emul/android/frameworks/base/core/java/android/os/AsyncTask.java b/jre_emul/android/frameworks/base/core/java/android/os/AsyncTask.java
index f922259e52..1bfeb65396 100644
--- a/jre_emul/android/frameworks/base/core/java/android/os/AsyncTask.java
+++ b/jre_emul/android/frameworks/base/core/java/android/os/AsyncTask.java
@@ -310,7 +310,7 @@ private void postResultIfNotInvoked(Result result) {
 
     private native Result postResult(Result result) /*-[
         dispatch_async(dispatch_get_main_queue(), ^{
-            [self finishWithId:result];
+            AndroidOsAsyncTask_finishWithId_(self, result);
         });
         return result;
     ]-*/;