diff --git a/Cronet/tests/cts/src/android/net/http/cts/UrlRequestTest.java b/Cronet/tests/cts/src/android/net/http/cts/UrlRequestTest.java
index 735bdc6..18ceb24 100644
--- a/Cronet/tests/cts/src/android/net/http/cts/UrlRequestTest.java
+++ b/Cronet/tests/cts/src/android/net/http/cts/UrlRequestTest.java
@@ -22,10 +22,16 @@
 import static org.hamcrest.MatcherAssert.assertThat;
 import static org.hamcrest.Matchers.greaterThan;
 import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotNull;
 import static org.junit.Assert.assertSame;
+import static org.junit.Assert.assertTrue;
 
 import android.content.Context;
 import android.net.http.HttpEngine;
+import android.net.http.HttpException;
+import android.net.http.InlineExecutionProhibitedException;
+import android.net.http.UploadDataProvider;
+import android.net.http.UploadDataSink;
 import android.net.http.UrlRequest;
 import android.net.http.UrlRequest.Status;
 import android.net.http.UrlResponseInfo;
@@ -43,8 +49,18 @@
 import org.junit.Test;
 import org.junit.runner.RunWith;
 
+import java.nio.ByteBuffer;
+import java.nio.charset.StandardCharsets;
+import java.util.concurrent.ArrayBlockingQueue;
+import java.util.concurrent.BlockingQueue;
+import java.util.concurrent.Executor;
+import java.util.concurrent.Executors;
+import java.util.concurrent.TimeUnit;
+
 @RunWith(AndroidJUnit4.class)
 public class UrlRequestTest {
+    private static final Executor DIRECT_EXECUTOR = Runnable::run;
+
     private TestUrlRequestCallback mCallback;
     private HttpCtsTestServer mTestServer;
     private HttpEngine mHttpEngine;
@@ -128,8 +144,203 @@
     }
 
     @Test
-    public void testUrlRequestFail_FailedCalled() throws Exception {
+    public void testUrlRequestFail_FailedCalled() {
         createUrlRequestBuilder("http://0.0.0.0:0/").build().start();
         mCallback.expectCallback(ResponseStep.ON_FAILED);
     }
+
+    @Test
+    public void testUrlRequest_directExecutor_allowed() throws InterruptedException {
+        TestUrlRequestCallback callback = new TestUrlRequestCallback();
+        callback.setAllowDirectExecutor(true);
+        UrlRequest.Builder builder = mHttpEngine.newUrlRequestBuilder(
+                mTestServer.getEchoBodyUrl(), callback, DIRECT_EXECUTOR);
+        UploadDataProvider dataProvider = InMemoryUploadDataProvider.fromUtf8String("test");
+        builder.setUploadDataProvider(dataProvider, DIRECT_EXECUTOR);
+        builder.addHeader("Content-Type", "text/plain;charset=UTF-8");
+        builder.setAllowDirectExecutor(true);
+        builder.build().start();
+        callback.blockForDone();
+
+        if (callback.mOnErrorCalled) {
+            throw new AssertionError("Expected no exception", callback.mError);
+        }
+
+        assertEquals(200, callback.mResponseInfo.getHttpStatusCode());
+        assertEquals("test", callback.mResponseAsString);
+    }
+
+    @Test
+    public void testUrlRequest_directExecutor_disallowed_uploadDataProvider() throws Exception {
+        TestUrlRequestCallback callback = new TestUrlRequestCallback();
+        // This applies just locally to the test callback, not to SUT
+        callback.setAllowDirectExecutor(true);
+
+        UrlRequest.Builder builder = mHttpEngine.newUrlRequestBuilder(
+                mTestServer.getEchoBodyUrl(), callback, Executors.newSingleThreadExecutor());
+        UploadDataProvider dataProvider = InMemoryUploadDataProvider.fromUtf8String("test");
+
+        builder.setUploadDataProvider(dataProvider, DIRECT_EXECUTOR)
+                .addHeader("Content-Type", "text/plain;charset=UTF-8")
+                .build()
+                .start();
+        callback.blockForDone();
+
+        assertTrue(callback.mOnErrorCalled);
+        assertTrue(callback.mError.getCause() instanceof InlineExecutionProhibitedException);
+    }
+
+    @Test
+    public void testUrlRequest_directExecutor_disallowed_responseCallback() throws Exception {
+        TestUrlRequestCallback callback = new TestUrlRequestCallback();
+        // This applies just locally to the test callback, not to SUT
+        callback.setAllowDirectExecutor(true);
+
+        UrlRequest.Builder builder = mHttpEngine.newUrlRequestBuilder(
+                mTestServer.getEchoBodyUrl(), callback, DIRECT_EXECUTOR);
+        UploadDataProvider dataProvider = InMemoryUploadDataProvider.fromUtf8String("test");
+
+        builder.setUploadDataProvider(dataProvider, Executors.newSingleThreadExecutor())
+                .addHeader("Content-Type", "text/plain;charset=UTF-8")
+                .build()
+                .start();
+        callback.blockForDone();
+
+        assertTrue(callback.mOnErrorCalled);
+        assertTrue(callback.mError.getCause() instanceof InlineExecutionProhibitedException);
+    }
+
+    @Test
+    public void testUrlRequest_nonDirectByteBuffer() throws Exception {
+        BlockingQueue<HttpException> onFailedException = new ArrayBlockingQueue<>(1);
+
+        UrlRequest request =
+                mHttpEngine
+                        .newUrlRequestBuilder(
+                                mTestServer.getSuccessUrl(),
+                                new StubUrlRequestCallback() {
+                                    @Override
+                                    public void onResponseStarted(
+                                            UrlRequest request, UrlResponseInfo info) {
+                                        // note: allocate, not allocateDirect
+                                        request.read(ByteBuffer.allocate(1024));
+                                    }
+
+                                    @Override
+                                    public void onFailed(
+                                            UrlRequest request,
+                                            UrlResponseInfo info,
+                                            HttpException error) {
+                                        onFailedException.add(error);
+                                    }
+                                },
+                                Executors.newSingleThreadExecutor())
+                        .build();
+        request.start();
+
+        HttpException e = onFailedException.poll(5, TimeUnit.SECONDS);
+        assertNotNull(e);
+        assertTrue(e.getCause() instanceof IllegalArgumentException);
+        assertTrue(e.getCause().getMessage().contains("direct"));
+    }
+
+    @Test
+    public void testUrlRequest_fullByteBuffer() throws Exception {
+        BlockingQueue<HttpException> onFailedException = new ArrayBlockingQueue<>(1);
+
+        UrlRequest request =
+                mHttpEngine
+                        .newUrlRequestBuilder(
+                                mTestServer.getSuccessUrl(),
+                                new StubUrlRequestCallback() {
+                                    @Override
+                                    public void onResponseStarted(
+                                            UrlRequest request, UrlResponseInfo info) {
+                                        ByteBuffer bb = ByteBuffer.allocateDirect(1024);
+                                        bb.position(bb.limit());
+                                        request.read(bb);
+                                    }
+
+                                    @Override
+                                    public void onFailed(
+                                            UrlRequest request,
+                                            UrlResponseInfo info,
+                                            HttpException error) {
+                                        onFailedException.add(error);
+                                    }
+                                },
+                                Executors.newSingleThreadExecutor())
+                        .build();
+        request.start();
+
+        HttpException e = onFailedException.poll(5, TimeUnit.SECONDS);
+        assertNotNull(e);
+        assertTrue(e.getCause() instanceof IllegalArgumentException);
+        assertTrue(e.getCause().getMessage().contains("full"));
+    }
+
+    private static class StubUrlRequestCallback extends UrlRequest.Callback {
+
+        @Override
+        public void onRedirectReceived(
+                UrlRequest request, UrlResponseInfo info, String newLocationUrl) {
+            throw new UnsupportedOperationException();
+        }
+
+        @Override
+        public void onResponseStarted(UrlRequest request, UrlResponseInfo info) {
+            throw new UnsupportedOperationException();
+        }
+
+        @Override
+        public void onReadCompleted(
+                UrlRequest request, UrlResponseInfo info, ByteBuffer byteBuffer) {
+            throw new UnsupportedOperationException();
+        }
+
+        @Override
+        public void onSucceeded(UrlRequest request, UrlResponseInfo info) {
+            throw new UnsupportedOperationException();
+        }
+
+        @Override
+        public void onFailed(UrlRequest request, UrlResponseInfo info, HttpException error) {
+            throw new UnsupportedOperationException(error);
+        }
+    }
+
+    private static class InMemoryUploadDataProvider extends UploadDataProvider {
+        private final byte[] mBody;
+        private int mNextChunkStartIndex = 0;
+
+        private InMemoryUploadDataProvider(byte[] body) {
+            this.mBody = body;
+        }
+
+        static InMemoryUploadDataProvider fromUtf8String(String body) {
+            return new InMemoryUploadDataProvider(body.getBytes(StandardCharsets.UTF_8));
+        }
+
+        @Override
+        public long getLength() {
+            return mBody.length;
+        }
+
+        @Override
+        public void read(UploadDataSink uploadDataSink, ByteBuffer byteBuffer) {
+            if (mNextChunkStartIndex >= getLength()) {
+                throw new IllegalStateException("Body of known length is exhausted");
+            }
+            int nextChunkSize =
+                    Math.min(mBody.length - mNextChunkStartIndex, byteBuffer.remaining());
+            byteBuffer.put(mBody, mNextChunkStartIndex, nextChunkSize);
+            mNextChunkStartIndex += nextChunkSize;
+            uploadDataSink.onReadSucceeded(false);
+        }
+
+        @Override
+        public void rewind(UploadDataSink uploadDataSink) {
+            mNextChunkStartIndex = 0;
+        }
+    }
 }
diff --git a/Tethering/common/TetheringLib/cronet_enabled/api/current.txt b/Tethering/common/TetheringLib/cronet_enabled/api/current.txt
index e954074..7bdc0e4 100644
--- a/Tethering/common/TetheringLib/cronet_enabled/api/current.txt
+++ b/Tethering/common/TetheringLib/cronet_enabled/api/current.txt
@@ -6,20 +6,20 @@
     method public abstract void cancel();
     method public abstract void flush();
     method public abstract boolean isDone();
-    method public abstract void read(java.nio.ByteBuffer);
+    method public abstract void read(@NonNull java.nio.ByteBuffer);
     method public abstract void start();
-    method public abstract void write(java.nio.ByteBuffer, boolean);
+    method public abstract void write(@NonNull java.nio.ByteBuffer, boolean);
   }
 
   public abstract static class BidirectionalStream.Builder {
     ctor public BidirectionalStream.Builder();
-    method public abstract android.net.http.BidirectionalStream.Builder addHeader(String, String);
-    method public abstract android.net.http.BidirectionalStream build();
-    method public abstract android.net.http.BidirectionalStream.Builder delayRequestHeadersUntilFirstFlush(boolean);
-    method public abstract android.net.http.BidirectionalStream.Builder setHttpMethod(String);
-    method public abstract android.net.http.BidirectionalStream.Builder setPriority(int);
-    method public abstract android.net.http.BidirectionalStream.Builder setTrafficStatsTag(int);
-    method public abstract android.net.http.BidirectionalStream.Builder setTrafficStatsUid(int);
+    method @NonNull public abstract android.net.http.BidirectionalStream.Builder addHeader(@NonNull String, @NonNull String);
+    method @NonNull public abstract android.net.http.BidirectionalStream build();
+    method @NonNull public abstract android.net.http.BidirectionalStream.Builder delayRequestHeadersUntilFirstFlush(boolean);
+    method @NonNull public abstract android.net.http.BidirectionalStream.Builder setHttpMethod(@NonNull String);
+    method @NonNull public abstract android.net.http.BidirectionalStream.Builder setPriority(int);
+    method @NonNull public abstract android.net.http.BidirectionalStream.Builder setTrafficStatsTag(int);
+    method @NonNull public abstract android.net.http.BidirectionalStream.Builder setTrafficStatsUid(int);
     field public static final int STREAM_PRIORITY_HIGHEST = 4; // 0x4
     field public static final int STREAM_PRIORITY_IDLE = 0; // 0x0
     field public static final int STREAM_PRIORITY_LOW = 2; // 0x2
@@ -29,18 +29,18 @@
 
   public abstract static class BidirectionalStream.Callback {
     ctor public BidirectionalStream.Callback();
-    method public void onCanceled(android.net.http.BidirectionalStream, android.net.http.UrlResponseInfo);
-    method public abstract void onFailed(android.net.http.BidirectionalStream, android.net.http.UrlResponseInfo, android.net.http.HttpException);
-    method public abstract void onReadCompleted(android.net.http.BidirectionalStream, android.net.http.UrlResponseInfo, java.nio.ByteBuffer, boolean);
-    method public abstract void onResponseHeadersReceived(android.net.http.BidirectionalStream, android.net.http.UrlResponseInfo);
-    method public void onResponseTrailersReceived(android.net.http.BidirectionalStream, android.net.http.UrlResponseInfo, android.net.http.UrlResponseInfo.HeaderBlock);
-    method public abstract void onStreamReady(android.net.http.BidirectionalStream);
-    method public abstract void onSucceeded(android.net.http.BidirectionalStream, android.net.http.UrlResponseInfo);
-    method public abstract void onWriteCompleted(android.net.http.BidirectionalStream, android.net.http.UrlResponseInfo, java.nio.ByteBuffer, boolean);
+    method public void onCanceled(@NonNull android.net.http.BidirectionalStream, @Nullable android.net.http.UrlResponseInfo);
+    method public abstract void onFailed(@NonNull android.net.http.BidirectionalStream, @Nullable android.net.http.UrlResponseInfo, @NonNull android.net.http.HttpException);
+    method public abstract void onReadCompleted(@NonNull android.net.http.BidirectionalStream, @NonNull android.net.http.UrlResponseInfo, @NonNull java.nio.ByteBuffer, boolean);
+    method public abstract void onResponseHeadersReceived(@NonNull android.net.http.BidirectionalStream, @NonNull android.net.http.UrlResponseInfo);
+    method public void onResponseTrailersReceived(@NonNull android.net.http.BidirectionalStream, @NonNull android.net.http.UrlResponseInfo, @NonNull android.net.http.UrlResponseInfo.HeaderBlock);
+    method public abstract void onStreamReady(@NonNull android.net.http.BidirectionalStream);
+    method public abstract void onSucceeded(@NonNull android.net.http.BidirectionalStream, @NonNull android.net.http.UrlResponseInfo);
+    method public abstract void onWriteCompleted(@NonNull android.net.http.BidirectionalStream, @NonNull android.net.http.UrlResponseInfo, @NonNull java.nio.ByteBuffer, boolean);
   }
 
   public abstract class CallbackException extends android.net.http.HttpException {
-    ctor protected CallbackException(String, Throwable);
+    ctor protected CallbackException(@Nullable String, @Nullable Throwable);
   }
 
   public class ConnectionMigrationOptions {
@@ -51,10 +51,10 @@
 
   public static final class ConnectionMigrationOptions.Builder {
     ctor public ConnectionMigrationOptions.Builder();
-    method public android.net.http.ConnectionMigrationOptions build();
-    method public android.net.http.ConnectionMigrationOptions.Builder setAllowNonDefaultNetworkUsage(boolean);
-    method public android.net.http.ConnectionMigrationOptions.Builder setEnableDefaultNetworkMigration(boolean);
-    method public android.net.http.ConnectionMigrationOptions.Builder setEnablePathDegradationMigration(boolean);
+    method @NonNull public android.net.http.ConnectionMigrationOptions build();
+    method @NonNull public android.net.http.ConnectionMigrationOptions.Builder setAllowNonDefaultNetworkUsage(boolean);
+    method @NonNull public android.net.http.ConnectionMigrationOptions.Builder setEnableDefaultNetworkMigration(boolean);
+    method @NonNull public android.net.http.ConnectionMigrationOptions.Builder setEnablePathDegradationMigration(boolean);
   }
 
   public final class DnsOptions {
@@ -68,13 +68,13 @@
 
   public static final class DnsOptions.Builder {
     ctor public DnsOptions.Builder();
-    method public android.net.http.DnsOptions build();
-    method public android.net.http.DnsOptions.Builder setEnableStaleDns(boolean);
-    method public android.net.http.DnsOptions.Builder setPersistHostCache(boolean);
-    method public android.net.http.DnsOptions.Builder setPersistHostCachePeriod(java.time.Duration);
-    method public android.net.http.DnsOptions.Builder setPreestablishConnectionsToStaleDnsResults(boolean);
-    method public android.net.http.DnsOptions.Builder setStaleDnsOptions(android.net.http.DnsOptions.StaleDnsOptions);
-    method public android.net.http.DnsOptions.Builder setUseHttpStackDnsResolver(boolean);
+    method @NonNull public android.net.http.DnsOptions build();
+    method @NonNull public android.net.http.DnsOptions.Builder setEnableStaleDns(boolean);
+    method @NonNull public android.net.http.DnsOptions.Builder setPersistHostCache(boolean);
+    method @NonNull public android.net.http.DnsOptions.Builder setPersistHostCachePeriod(@NonNull java.time.Duration);
+    method @NonNull public android.net.http.DnsOptions.Builder setPreestablishConnectionsToStaleDnsResults(boolean);
+    method @NonNull public android.net.http.DnsOptions.Builder setStaleDnsOptions(@NonNull android.net.http.DnsOptions.StaleDnsOptions);
+    method @NonNull public android.net.http.DnsOptions.Builder setUseHttpStackDnsResolver(boolean);
   }
 
   public static class DnsOptions.StaleDnsOptions {
@@ -86,40 +86,40 @@
 
   public static final class DnsOptions.StaleDnsOptions.Builder {
     ctor public DnsOptions.StaleDnsOptions.Builder();
-    method public android.net.http.DnsOptions.StaleDnsOptions build();
-    method public android.net.http.DnsOptions.StaleDnsOptions.Builder setAllowCrossNetworkUsage(boolean);
-    method public android.net.http.DnsOptions.StaleDnsOptions.Builder setFreshLookupTimeout(java.time.Duration);
-    method public android.net.http.DnsOptions.StaleDnsOptions.Builder setMaxExpiredDelay(java.time.Duration);
-    method public android.net.http.DnsOptions.StaleDnsOptions.Builder setUseStaleOnNameNotResolved(boolean);
+    method @NonNull public android.net.http.DnsOptions.StaleDnsOptions build();
+    method @NonNull public android.net.http.DnsOptions.StaleDnsOptions.Builder setAllowCrossNetworkUsage(boolean);
+    method @NonNull public android.net.http.DnsOptions.StaleDnsOptions.Builder setFreshLookupTimeout(@NonNull java.time.Duration);
+    method @NonNull public android.net.http.DnsOptions.StaleDnsOptions.Builder setMaxExpiredDelay(@NonNull java.time.Duration);
+    method @NonNull public android.net.http.DnsOptions.StaleDnsOptions.Builder setUseStaleOnNameNotResolved(boolean);
   }
 
   public abstract class HttpEngine {
     method public void bindToNetwork(@Nullable android.net.Network);
-    method public abstract java.net.URLStreamHandlerFactory createUrlStreamHandlerFactory();
-    method public static String getVersionString();
-    method public abstract android.net.http.BidirectionalStream.Builder newBidirectionalStreamBuilder(String, java.util.concurrent.Executor, android.net.http.BidirectionalStream.Callback);
-    method public abstract android.net.http.UrlRequest.Builder newUrlRequestBuilder(String, java.util.concurrent.Executor, android.net.http.UrlRequest.Callback);
-    method public android.net.http.UrlRequest.Builder newUrlRequestBuilder(String, android.net.http.UrlRequest.Callback, java.util.concurrent.Executor);
-    method public abstract java.net.URLConnection openConnection(java.net.URL) throws java.io.IOException;
+    method @NonNull public abstract java.net.URLStreamHandlerFactory createUrlStreamHandlerFactory();
+    method @NonNull public static String getVersionString();
+    method @NonNull public abstract android.net.http.BidirectionalStream.Builder newBidirectionalStreamBuilder(@NonNull String, @NonNull java.util.concurrent.Executor, @NonNull android.net.http.BidirectionalStream.Callback);
+    method @NonNull public abstract android.net.http.UrlRequest.Builder newUrlRequestBuilder(@NonNull String, @NonNull java.util.concurrent.Executor, @NonNull android.net.http.UrlRequest.Callback);
+    method @NonNull public android.net.http.UrlRequest.Builder newUrlRequestBuilder(@NonNull String, @NonNull android.net.http.UrlRequest.Callback, @NonNull java.util.concurrent.Executor);
+    method @NonNull public abstract java.net.URLConnection openConnection(@NonNull java.net.URL) throws java.io.IOException;
     method public abstract void shutdown();
   }
 
   public static class HttpEngine.Builder {
-    ctor public HttpEngine.Builder(android.content.Context);
-    method public android.net.http.HttpEngine.Builder addPublicKeyPins(String, java.util.Set<byte[]>, boolean, java.time.Instant);
-    method public android.net.http.HttpEngine.Builder addQuicHint(String, int, int);
-    method public android.net.http.HttpEngine build();
-    method public String getDefaultUserAgent();
-    method public android.net.http.HttpEngine.Builder setConnectionMigrationOptions(android.net.http.ConnectionMigrationOptions);
-    method public android.net.http.HttpEngine.Builder setDnsOptions(android.net.http.DnsOptions);
-    method public android.net.http.HttpEngine.Builder setEnableBrotli(boolean);
-    method public android.net.http.HttpEngine.Builder setEnableHttp2(boolean);
-    method public android.net.http.HttpEngine.Builder setEnableHttpCache(int, long);
-    method public android.net.http.HttpEngine.Builder setEnablePublicKeyPinningBypassForLocalTrustAnchors(boolean);
-    method public android.net.http.HttpEngine.Builder setEnableQuic(boolean);
-    method public android.net.http.HttpEngine.Builder setQuicOptions(android.net.http.QuicOptions);
-    method public android.net.http.HttpEngine.Builder setStoragePath(String);
-    method public android.net.http.HttpEngine.Builder setUserAgent(String);
+    ctor public HttpEngine.Builder(@NonNull android.content.Context);
+    method @NonNull public android.net.http.HttpEngine.Builder addPublicKeyPins(@NonNull String, @NonNull java.util.Set<byte[]>, boolean, @NonNull java.time.Instant);
+    method @NonNull public android.net.http.HttpEngine.Builder addQuicHint(@NonNull String, int, int);
+    method @NonNull public android.net.http.HttpEngine build();
+    method @NonNull public String getDefaultUserAgent();
+    method @NonNull public android.net.http.HttpEngine.Builder setConnectionMigrationOptions(@NonNull android.net.http.ConnectionMigrationOptions);
+    method @NonNull public android.net.http.HttpEngine.Builder setDnsOptions(@NonNull android.net.http.DnsOptions);
+    method @NonNull public android.net.http.HttpEngine.Builder setEnableBrotli(boolean);
+    method @NonNull public android.net.http.HttpEngine.Builder setEnableHttp2(boolean);
+    method @NonNull public android.net.http.HttpEngine.Builder setEnableHttpCache(int, long);
+    method @NonNull public android.net.http.HttpEngine.Builder setEnablePublicKeyPinningBypassForLocalTrustAnchors(boolean);
+    method @NonNull public android.net.http.HttpEngine.Builder setEnableQuic(boolean);
+    method @NonNull public android.net.http.HttpEngine.Builder setQuicOptions(@NonNull android.net.http.QuicOptions);
+    method @NonNull public android.net.http.HttpEngine.Builder setStoragePath(@NonNull String);
+    method @NonNull public android.net.http.HttpEngine.Builder setUserAgent(@NonNull String);
     field public static final int HTTP_CACHE_DISABLED = 0; // 0x0
     field public static final int HTTP_CACHE_DISK = 3; // 0x3
     field public static final int HTTP_CACHE_DISK_NO_HTTP = 2; // 0x2
@@ -166,7 +166,7 @@
     method @NonNull public android.net.http.QuicOptions.Builder addAllowedQuicHost(@NonNull String);
     method @NonNull public android.net.http.QuicOptions build();
     method @NonNull public android.net.http.QuicOptions.Builder setHandshakeUserAgent(@NonNull String);
-    method public android.net.http.QuicOptions.Builder setIdleConnectionTimeout(java.time.Duration);
+    method @NonNull public android.net.http.QuicOptions.Builder setIdleConnectionTimeout(@NonNull java.time.Duration);
     method @NonNull public android.net.http.QuicOptions.Builder setInMemoryServerConfigsCacheSize(int);
   }
 
@@ -203,8 +203,8 @@
     method @NonNull public abstract android.net.http.UrlRequest.Builder setDisableCache(boolean);
     method @NonNull public abstract android.net.http.UrlRequest.Builder setHttpMethod(@NonNull String);
     method @NonNull public abstract android.net.http.UrlRequest.Builder setPriority(int);
-    method public abstract android.net.http.UrlRequest.Builder setTrafficStatsTag(int);
-    method public abstract android.net.http.UrlRequest.Builder setTrafficStatsUid(int);
+    method @NonNull public abstract android.net.http.UrlRequest.Builder setTrafficStatsTag(int);
+    method @NonNull public abstract android.net.http.UrlRequest.Builder setTrafficStatsUid(int);
     method @NonNull public abstract android.net.http.UrlRequest.Builder setUploadDataProvider(@NonNull android.net.http.UploadDataProvider, @NonNull java.util.concurrent.Executor);
     field public static final int REQUEST_PRIORITY_HIGHEST = 4; // 0x4
     field public static final int REQUEST_PRIORITY_IDLE = 0; // 0x0
@@ -260,8 +260,8 @@
 
   public abstract static class UrlResponseInfo.HeaderBlock {
     ctor public UrlResponseInfo.HeaderBlock();
-    method public abstract java.util.List<java.util.Map.Entry<java.lang.String,java.lang.String>> getAsList();
-    method public abstract java.util.Map<java.lang.String,java.util.List<java.lang.String>> getAsMap();
+    method @NonNull public abstract java.util.List<java.util.Map.Entry<java.lang.String,java.lang.String>> getAsList();
+    method @NonNull public abstract java.util.Map<java.lang.String,java.util.List<java.lang.String>> getAsMap();
   }
 
 }