Intermediate changes

7 files changed, 1 insertions, 912 deletions

diff --git a/contrib/libs/grpc-java/core/src/main/java/io/grpc/internal/GrpcUtil.java b/contrib/libs/grpc-java/core/src/main/java/io/grpc/internal/GrpcUtil.java
deleted file mode 100644
index 988a642e94..0000000000
--- a/contrib/libs/grpc-java/core/src/main/java/io/grpc/internal/GrpcUtil.java
+++ /dev/null
@@ -1,876 +0,0 @@
-/*
- * Copyright 2014 The gRPC Authors
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package io.grpc.internal;
-
-import static com.google.common.base.Preconditions.checkArgument;
-import static com.google.common.base.Preconditions.checkState;
-
-import com.google.common.annotations.VisibleForTesting;
-import com.google.common.base.Objects;
-import com.google.common.base.Preconditions;
-import com.google.common.base.Splitter;
-import com.google.common.base.Stopwatch;
-import com.google.common.base.Supplier;
-import com.google.common.util.concurrent.ListenableFuture;
-import com.google.common.util.concurrent.ThreadFactoryBuilder;
-import io.grpc.Attributes;
-import io.grpc.CallOptions;
-import io.grpc.ClientStreamTracer;
-import io.grpc.ClientStreamTracer.InternalLimitedInfoFactory;
-import io.grpc.ClientStreamTracer.StreamInfo;
-import io.grpc.InternalChannelz.SocketStats;
-import io.grpc.InternalLogId;
-import io.grpc.InternalMetadata;
-import io.grpc.InternalMetadata.TrustedAsciiMarshaller;
-import io.grpc.LoadBalancer.PickResult;
-import io.grpc.LoadBalancer.Subchannel;
-import io.grpc.Metadata;
-import io.grpc.MethodDescriptor;
-import io.grpc.ProxiedSocketAddress;
-import io.grpc.ProxyDetector;
-import io.grpc.Status;
-import io.grpc.internal.ClientStreamListener.RpcProgress;
-import io.grpc.internal.SharedResourceHolder.Resource;
-import io.grpc.internal.StreamListener.MessageProducer;
-import java.io.Closeable;
-import java.io.IOException;
-import java.io.InputStream;
-import java.lang.reflect.InvocationTargetException;
-import java.lang.reflect.Method;
-import java.net.HttpURLConnection;
-import java.net.InetSocketAddress;
-import java.net.SocketAddress;
-import java.net.URI;
-import java.net.URISyntaxException;
-import java.nio.charset.Charset;
-import java.util.Collection;
-import java.util.List;
-import java.util.concurrent.Executor;
-import java.util.concurrent.ExecutorService;
-import java.util.concurrent.Executors;
-import java.util.concurrent.ScheduledExecutorService;
-import java.util.concurrent.ThreadFactory;
-import java.util.concurrent.TimeUnit;
-import java.util.logging.Level;
-import java.util.logging.Logger;
-import javax.annotation.Nullable;
-import javax.annotation.concurrent.Immutable;
-
-/**
- * Common utilities for GRPC.
- */
-public final class GrpcUtil {
-
-  private static final Logger log = Logger.getLogger(GrpcUtil.class.getName());
-
-  public static final Charset US_ASCII = Charset.forName("US-ASCII");
-
-  /**
-   * {@link io.grpc.Metadata.Key} for the timeout header.
-   */
-  public static final Metadata.Key<Long> TIMEOUT_KEY =
-          Metadata.Key.of(GrpcUtil.TIMEOUT, new TimeoutMarshaller());
-
-  /**
-   * {@link io.grpc.Metadata.Key} for the message encoding header.
-   */
-  public static final Metadata.Key<String> MESSAGE_ENCODING_KEY =
-          Metadata.Key.of(GrpcUtil.MESSAGE_ENCODING, Metadata.ASCII_STRING_MARSHALLER);
-
-  /**
-   * {@link io.grpc.Metadata.Key} for the accepted message encodings header.
-   */
-  public static final Metadata.Key<byte[]> MESSAGE_ACCEPT_ENCODING_KEY =
-      InternalMetadata.keyOf(GrpcUtil.MESSAGE_ACCEPT_ENCODING, new AcceptEncodingMarshaller());
-
-  /**
-   * {@link io.grpc.Metadata.Key} for the stream's content encoding header.
-   */
-  public static final Metadata.Key<String> CONTENT_ENCODING_KEY =
-      Metadata.Key.of(GrpcUtil.CONTENT_ENCODING, Metadata.ASCII_STRING_MARSHALLER);
-
-  /**
-   * {@link io.grpc.Metadata.Key} for the stream's accepted content encoding header.
-   */
-  public static final Metadata.Key<byte[]> CONTENT_ACCEPT_ENCODING_KEY =
-      InternalMetadata.keyOf(GrpcUtil.CONTENT_ACCEPT_ENCODING, new AcceptEncodingMarshaller());
-
-  static final Metadata.Key<String> CONTENT_LENGTH_KEY =
-      Metadata.Key.of("content-length", Metadata.ASCII_STRING_MARSHALLER);
-
-  private static final class AcceptEncodingMarshaller implements TrustedAsciiMarshaller<byte[]> {
-    @Override
-    public byte[] toAsciiString(byte[] value) {
-      return value;
-    }
-
-    @Override
-    public byte[] parseAsciiString(byte[] serialized) {
-      return serialized;
-    }
-  }
-
-  /**
-   * {@link io.grpc.Metadata.Key} for the Content-Type request/response header.
-   */
-  public static final Metadata.Key<String> CONTENT_TYPE_KEY =
-          Metadata.Key.of("content-type", Metadata.ASCII_STRING_MARSHALLER);
-
-  /**
-   * {@link io.grpc.Metadata.Key} for the Transfer encoding.
-   */
-  public static final Metadata.Key<String> TE_HEADER =
-      Metadata.Key.of("te", Metadata.ASCII_STRING_MARSHALLER);
-
-  /**
-   * {@link io.grpc.Metadata.Key} for the Content-Type request/response header.
-   */
-  public static final Metadata.Key<String> USER_AGENT_KEY =
-          Metadata.Key.of("user-agent", Metadata.ASCII_STRING_MARSHALLER);
-
-  /**
-   * The default port for plain-text connections.
-   */
-  public static final int DEFAULT_PORT_PLAINTEXT = 80;
-
-  /**
-   * The default port for SSL connections.
-   */
-  public static final int DEFAULT_PORT_SSL = 443;
-
-  /**
-   * Content-Type used for GRPC-over-HTTP/2.
-   */
-  public static final String CONTENT_TYPE_GRPC = "application/grpc";
-
-  /**
-   * The HTTP method used for GRPC requests.
-   */
-  public static final String HTTP_METHOD = "POST";
-
-  /**
-   * The TE (transport encoding) header for requests over HTTP/2.
-   */
-  public static final String TE_TRAILERS = "trailers";
-
-  /**
-   * The Timeout header name.
-   */
-  public static final String TIMEOUT = "grpc-timeout";
-
-  /**
-   * The message encoding (i.e. compression) that can be used in the stream.
-   */
-  public static final String MESSAGE_ENCODING = "grpc-encoding";
-
-  /**
-   * The accepted message encodings (i.e. compression) that can be used in the stream.
-   */
-  public static final String MESSAGE_ACCEPT_ENCODING = "grpc-accept-encoding";
-
-  /**
-   * The content-encoding used to compress the full gRPC stream.
-   */
-  public static final String CONTENT_ENCODING = "content-encoding";
-
-  /**
-   * The accepted content-encodings that can be used to compress the full gRPC stream.
-   */
-  public static final String CONTENT_ACCEPT_ENCODING = "accept-encoding";
-
-  /**
-   * The default maximum uncompressed size (in bytes) for inbound messages. Defaults to 4 MiB.
-   */
-  public static final int DEFAULT_MAX_MESSAGE_SIZE = 4 * 1024 * 1024;
-
-  /**
-   * The default maximum size (in bytes) for inbound header/trailer.
-   */
-  // Update documentation in public-facing Builders when changing this value.
-  public static final int DEFAULT_MAX_HEADER_LIST_SIZE = 8192;
-
-  public static final Splitter ACCEPT_ENCODING_SPLITTER = Splitter.on(',').trimResults();
-
-  private static final String IMPLEMENTATION_VERSION = "1.43.2"; // CURRENT_GRPC_VERSION
-
-  /**
-   * The default timeout in nanos for a keepalive ping request.
-   */
-  public static final long DEFAULT_KEEPALIVE_TIMEOUT_NANOS = TimeUnit.SECONDS.toNanos(20L);
-
-  /**
-   * The magic keepalive time value that disables client keepalive.
-   */
-  public static final long KEEPALIVE_TIME_NANOS_DISABLED = Long.MAX_VALUE;
-
-  /**
-   * The default delay in nanos for server keepalive.
-   */
-  public static final long DEFAULT_SERVER_KEEPALIVE_TIME_NANOS = TimeUnit.HOURS.toNanos(2L);
-
-  /**
-   * The default timeout in nanos for a server keepalive ping request.
-   */
-  public static final long DEFAULT_SERVER_KEEPALIVE_TIMEOUT_NANOS = TimeUnit.SECONDS.toNanos(20L);
-
-  /**
-   * The magic keepalive time value that disables keepalive.
-   */
-  public static final long SERVER_KEEPALIVE_TIME_NANOS_DISABLED = Long.MAX_VALUE;
-
-  /**
-   * The default proxy detector.
-   */
-  public static final ProxyDetector DEFAULT_PROXY_DETECTOR = new ProxyDetectorImpl();
-
-  /**
-   * A proxy detector that always claims no proxy is needed.
-   */
-  public static final ProxyDetector NOOP_PROXY_DETECTOR = new ProxyDetector() {
-    @Nullable
-    @Override
-    public ProxiedSocketAddress proxyFor(SocketAddress targetServerAddress) {
-      return null;
-    }
-  };
-
-  /**
-   * The very default load-balancing policy.
-   */
-  public static final String DEFAULT_LB_POLICY = "pick_first";
-
-  /**
-   * RPCs created on the Channel returned by {@link io.grpc.LoadBalancer.Subchannel#asChannel}
-   * will have this option with value {@code true}.  They will be treated differently from
-   * the ones created by application.
-   */
-  public static final CallOptions.Key<Boolean> CALL_OPTIONS_RPC_OWNED_BY_BALANCER =
-      CallOptions.Key.create("io.grpc.internal.CALL_OPTIONS_RPC_OWNED_BY_BALANCER");
-
-  private static final ClientStreamTracer NOOP_TRACER = new ClientStreamTracer() {};
-
-  /**
-   * Returns true if an RPC with the given properties should be counted when calculating the
-   * in-use state of a transport.
-   */
-  public static boolean shouldBeCountedForInUse(CallOptions callOptions) {
-    return !Boolean.TRUE.equals(callOptions.getOption(CALL_OPTIONS_RPC_OWNED_BY_BALANCER));
-  }
-
-  /**
-   * Maps HTTP error response status codes to transport codes, as defined in <a
-   * href="https://github.com/grpc/grpc/blob/master/doc/http-grpc-status-mapping.md">
-   * http-grpc-status-mapping.md</a>. Never returns a status for which {@code status.isOk()} is
-   * {@code true}.
-   */
-  public static Status httpStatusToGrpcStatus(int httpStatusCode) {
-    return httpStatusToGrpcCode(httpStatusCode).toStatus()
-        .withDescription("HTTP status code " + httpStatusCode);
-  }
-
-  private static Status.Code httpStatusToGrpcCode(int httpStatusCode) {
-    if (httpStatusCode >= 100 && httpStatusCode < 200) {
-      // 1xx. These headers should have been ignored.
-      return Status.Code.INTERNAL;
-    }
-    switch (httpStatusCode) {
-      case HttpURLConnection.HTTP_BAD_REQUEST:  // 400
-      case 431: // Request Header Fields Too Large
-        // TODO(carl-mastrangelo): this should be added to the http-grpc-status-mapping.md doc.
-        return Status.Code.INTERNAL;
-      case HttpURLConnection.HTTP_UNAUTHORIZED:  // 401
-        return Status.Code.UNAUTHENTICATED;
-      case HttpURLConnection.HTTP_FORBIDDEN:  // 403
-        return Status.Code.PERMISSION_DENIED;
-      case HttpURLConnection.HTTP_NOT_FOUND:  // 404
-        return Status.Code.UNIMPLEMENTED;
-      case 429:  // Too Many Requests
-      case HttpURLConnection.HTTP_BAD_GATEWAY:  // 502
-      case HttpURLConnection.HTTP_UNAVAILABLE:  // 503
-      case HttpURLConnection.HTTP_GATEWAY_TIMEOUT:  // 504
-        return Status.Code.UNAVAILABLE;
-      default:
-        return Status.Code.UNKNOWN;
-    }
-  }
-
-  /**
-   * All error codes identified by the HTTP/2 spec. Used in GOAWAY and RST_STREAM frames.
-   */
-  public enum Http2Error {
-    /**
-     * Servers implementing a graceful shutdown of the connection will send {@code GOAWAY} with
-     * {@code NO_ERROR}. In this case it is important to indicate to the application that the
-     * request should be retried (i.e. {@link Status#UNAVAILABLE}).
-     */
-    NO_ERROR(0x0, Status.UNAVAILABLE),
-    PROTOCOL_ERROR(0x1, Status.INTERNAL),
-    INTERNAL_ERROR(0x2, Status.INTERNAL),
-    FLOW_CONTROL_ERROR(0x3, Status.INTERNAL),
-    SETTINGS_TIMEOUT(0x4, Status.INTERNAL),
-    STREAM_CLOSED(0x5, Status.INTERNAL),
-    FRAME_SIZE_ERROR(0x6, Status.INTERNAL),
-    REFUSED_STREAM(0x7, Status.UNAVAILABLE),
-    CANCEL(0x8, Status.CANCELLED),
-    COMPRESSION_ERROR(0x9, Status.INTERNAL),
-    CONNECT_ERROR(0xA, Status.INTERNAL),
-    ENHANCE_YOUR_CALM(0xB, Status.RESOURCE_EXHAUSTED.withDescription("Bandwidth exhausted")),
-    INADEQUATE_SECURITY(0xC, Status.PERMISSION_DENIED.withDescription("Permission denied as "
-        + "protocol is not secure enough to call")),
-    HTTP_1_1_REQUIRED(0xD, Status.UNKNOWN);
-
-    // Populate a mapping of code to enum value for quick look-up.
-    private static final Http2Error[] codeMap = buildHttp2CodeMap();
-
-    private static Http2Error[] buildHttp2CodeMap() {
-      Http2Error[] errors = Http2Error.values();
-      int size = (int) errors[errors.length - 1].code() + 1;
-      Http2Error[] http2CodeMap = new Http2Error[size];
-      for (Http2Error error : errors) {
-        int index = (int) error.code();
-        http2CodeMap[index] = error;
-      }
-      return http2CodeMap;
-    }
-
-    private final int code;
-    // Status is not guaranteed to be deeply immutable. Don't care though, since that's only true
-    // when there are exceptions in the Status, which is not true here.
-    @SuppressWarnings("ImmutableEnumChecker")
-    private final Status status;
-
-    Http2Error(int code, Status status) {
-      this.code = code;
-      String description = "HTTP/2 error code: " + this.name();
-      if (status.getDescription() != null) {
-        description += " (" + status.getDescription() + ")";
-      }
-      this.status = status.withDescription(description);
-    }
-
-    /**
-     * Gets the code for this error used on the wire.
-     */
-    public long code() {
-      return code;
-    }
-
-    /**
-     * Gets the {@link Status} associated with this HTTP/2 code.
-     */
-    public Status status() {
-      return status;
-    }
-
-    /**
-     * Looks up the HTTP/2 error code enum value for the specified code.
-     *
-     * @param code an HTTP/2 error code value.
-     * @return the HTTP/2 error code enum or {@code null} if not found.
-     */
-    public static Http2Error forCode(long code) {
-      if (code >= codeMap.length || code < 0) {
-        return null;
-      }
-      return codeMap[(int) code];
-    }
-
-    /**
-     * Looks up the {@link Status} from the given HTTP/2 error code. This is preferred over {@code
-     * forCode(code).status()}, to more easily conform to HTTP/2:
-     *
-     * <blockquote>Unknown or unsupported error codes MUST NOT trigger any special behavior.
-     * These MAY be treated by an implementation as being equivalent to INTERNAL_ERROR.</blockquote>
-     *
-     * @param code the HTTP/2 error code.
-     * @return a {@link Status} representing the given error.
-     */
-    public static Status statusForCode(long code) {
-      Http2Error error = forCode(code);
-      if (error == null) {
-        // This "forgets" the message of INTERNAL_ERROR while keeping the same status code.
-        Status.Code statusCode = INTERNAL_ERROR.status().getCode();
-        return Status.fromCodeValue(statusCode.value())
-            .withDescription("Unrecognized HTTP/2 error code: " + code);
-      }
-
-      return error.status();
-    }
-  }
-
-  /**
-   * Indicates whether or not the given value is a valid gRPC content-type.
-   */
-  public static boolean isGrpcContentType(String contentType) {
-    if (contentType == null) {
-      return false;
-    }
-
-    if (CONTENT_TYPE_GRPC.length() > contentType.length()) {
-      return false;
-    }
-
-    contentType = contentType.toLowerCase();
-    if (!contentType.startsWith(CONTENT_TYPE_GRPC)) {
-      // Not a gRPC content-type.
-      return false;
-    }
-
-    if (contentType.length() == CONTENT_TYPE_GRPC.length()) {
-      // The strings match exactly.
-      return true;
-    }
-
-    // The contentType matches, but is longer than the expected string.
-    // We need to support variations on the content-type (e.g. +proto, +json) as defined by the
-    // gRPC wire spec.
-    char nextChar = contentType.charAt(CONTENT_TYPE_GRPC.length());
-    return nextChar == '+' || nextChar == ';';
-  }
-
-  /**
-   * Gets the User-Agent string for the gRPC transport.
-   */
-  public static String getGrpcUserAgent(
-      String transportName, @Nullable String applicationUserAgent) {
-    StringBuilder builder = new StringBuilder();
-    if (applicationUserAgent != null) {
-      builder.append(applicationUserAgent);
-      builder.append(' ');
-    }
-    builder.append("grpc-java-");
-    builder.append(transportName);
-    builder.append('/');
-    builder.append(IMPLEMENTATION_VERSION);
-    return builder.toString();
-  }
-
-  @Immutable
-  public static final class GrpcBuildVersion {
-    private final String userAgent;
-    private final String implementationVersion;
-
-    private GrpcBuildVersion(String userAgent, String implementationVersion) {
-      this.userAgent = Preconditions.checkNotNull(userAgent, "userAgentName");
-      this.implementationVersion =
-          Preconditions.checkNotNull(implementationVersion, "implementationVersion");
-    }
-
-    public String getUserAgent() {
-      return userAgent;
-    }
-
-    public String getImplementationVersion() {
-      return implementationVersion;
-    }
-
-    @Override
-    public String toString() {
-      return userAgent + " " + implementationVersion;
-    }
-  }
-
-  /**
-   * Returns the build version of gRPC.
-   */
-  public static GrpcBuildVersion getGrpcBuildVersion() {
-    return new GrpcBuildVersion("gRPC Java", IMPLEMENTATION_VERSION);
-  }
-
-  /**
-   * Parse an authority into a URI for retrieving the host and port.
-   */
-  public static URI authorityToUri(String authority) {
-    Preconditions.checkNotNull(authority, "authority");
-    URI uri;
-    try {
-      uri = new URI(null, authority, null, null, null);
-    } catch (URISyntaxException ex) {
-      throw new IllegalArgumentException("Invalid authority: " + authority, ex);
-    }
-    return uri;
-  }
-
-  /**
-   * Verify {@code authority} is valid for use with gRPC. The syntax must be valid and it must not
-   * include userinfo.
-   *
-   * @return the {@code authority} provided
-   */
-  public static String checkAuthority(String authority) {
-    URI uri = authorityToUri(authority);
-    checkArgument(uri.getHost() != null, "No host in authority '%s'", authority);
-    checkArgument(uri.getUserInfo() == null,
-        "Userinfo must not be present on authority: '%s'", authority);
-    return authority;
-  }
-
-  /**
-   * Combine a host and port into an authority string.
-   */
-  // There is a copy of this method in io.grpc.Grpc
-  public static String authorityFromHostAndPort(String host, int port) {
-    try {
-      return new URI(null, null, host, port, null, null, null).getAuthority();
-    } catch (URISyntaxException ex) {
-      throw new IllegalArgumentException("Invalid host or port: " + host + " " + port, ex);
-    }
-  }
-
-  /**
-   * Shared executor for channels.
-   */
-  public static final Resource<Executor> SHARED_CHANNEL_EXECUTOR =
-      new Resource<Executor>() {
-        private static final String NAME = "grpc-default-executor";
-        @Override
-        public Executor create() {
-          return Executors.newCachedThreadPool(getThreadFactory(NAME + "-%d", true));
-        }
-
-        @Override
-        public void close(Executor instance) {
-          ((ExecutorService) instance).shutdown();
-        }
-
-        @Override
-        public String toString() {
-          return NAME;
-        }
-      };
-
-  /**
-   * Shared single-threaded executor for managing channel timers.
-   */
-  public static final Resource<ScheduledExecutorService> TIMER_SERVICE =
-      new Resource<ScheduledExecutorService>() {
-        @Override
-        public ScheduledExecutorService create() {
-          // We don't use newSingleThreadScheduledExecutor because it doesn't return a
-          // ScheduledThreadPoolExecutor.
-          ScheduledExecutorService service = Executors.newScheduledThreadPool(
-              1,
-              getThreadFactory("grpc-timer-%d", true));
-
-          // If there are long timeouts that are cancelled, they will not actually be removed from
-          // the executors queue.  This forces immediate removal upon cancellation to avoid a
-          // memory leak.  Reflection is used because we cannot use methods added in Java 1.7.  If
-          // the method does not exist, we give up.  Note that the method is not present in 1.6, but
-          // _is_ present in the android standard library.
-          try {
-            Method method = service.getClass().getMethod("setRemoveOnCancelPolicy", boolean.class);
-            method.invoke(service, true);
-          } catch (NoSuchMethodException e) {
-            // no op
-          } catch (RuntimeException e) {
-            throw e;
-          } catch (Exception e) {
-            throw new RuntimeException(e);
-          }
-
-          return Executors.unconfigurableScheduledExecutorService(service);
-        }
-
-        @Override
-        public void close(ScheduledExecutorService instance) {
-          instance.shutdown();
-        }
-      };
-
-
-  /**
-   * Get a {@link ThreadFactory} suitable for use in the current environment.
-   * @param nameFormat to apply to threads created by the factory.
-   * @param daemon {@code true} if the threads the factory creates are daemon threads, {@code false}
-   *     otherwise.
-   * @return a {@link ThreadFactory}.
-   */
-  public static ThreadFactory getThreadFactory(String nameFormat, boolean daemon) {
-    return new ThreadFactoryBuilder()
-        .setDaemon(daemon)
-        .setNameFormat(nameFormat)
-        .build();
-  }
-
-  /**
-   * The factory of default Stopwatches.
-   */
-  public static final Supplier<Stopwatch> STOPWATCH_SUPPLIER = new Supplier<Stopwatch>() {
-      @Override
-      public Stopwatch get() {
-        return Stopwatch.createUnstarted();
-      }
-    };
-
-  /**
-   * Returns the host via {@link InetSocketAddress#getHostString} if it is possible,
-   * i.e. in jdk >= 7.
-   * Otherwise, return it via {@link InetSocketAddress#getHostName} which may incur a DNS lookup.
-   */
-  public static String getHost(InetSocketAddress addr) {
-    try {
-      Method getHostStringMethod = InetSocketAddress.class.getMethod("getHostString");
-      return (String) getHostStringMethod.invoke(addr);
-    } catch (NoSuchMethodException e) {
-      // noop
-    } catch (IllegalAccessException e) {
-      // noop
-    } catch (InvocationTargetException e) {
-      // noop
-    }
-    return addr.getHostName();
-  }
-
-  /**
-   * Marshals a nanoseconds representation of the timeout to and from a string representation,
-   * consisting of an ASCII decimal representation of a number with at most 8 digits, followed by a
-   * unit:
-   * n = nanoseconds
-   * u = microseconds
-   * m = milliseconds
-   * S = seconds
-   * M = minutes
-   * H = hours
-   *
-   * <p>The representation is greedy with respect to precision. That is, 2 seconds will be
-   * represented as `2000000u`.</p>
-   *
-   * <p>See <a href="https://github.com/grpc/grpc/blob/master/doc/PROTOCOL-HTTP2.md#requests">the
-   * request header definition</a></p>
-   */
-  @VisibleForTesting
-  static class TimeoutMarshaller implements Metadata.AsciiMarshaller<Long> {
-
-    @Override
-    public String toAsciiString(Long timeoutNanos) {
-      long cutoff = 100000000;
-      TimeUnit unit = TimeUnit.NANOSECONDS;
-      if (timeoutNanos < 0) {
-        throw new IllegalArgumentException("Timeout too small");
-      } else if (timeoutNanos < cutoff) {
-        return timeoutNanos + "n";
-      } else if (timeoutNanos < cutoff * 1000L) {
-        return unit.toMicros(timeoutNanos) + "u";
-      } else if (timeoutNanos < cutoff * 1000L * 1000L) {
-        return unit.toMillis(timeoutNanos) + "m";
-      } else if (timeoutNanos < cutoff * 1000L * 1000L * 1000L) {
-        return unit.toSeconds(timeoutNanos) + "S";
-      } else if (timeoutNanos < cutoff * 1000L * 1000L * 1000L * 60L) {
-        return unit.toMinutes(timeoutNanos) + "M";
-      } else {
-        return unit.toHours(timeoutNanos) + "H";
-      }
-    }
-
-    @Override
-    public Long parseAsciiString(String serialized) {
-      checkArgument(serialized.length() > 0, "empty timeout");
-      checkArgument(serialized.length() <= 9, "bad timeout format");
-      long value = Long.parseLong(serialized.substring(0, serialized.length() - 1));
-      char unit = serialized.charAt(serialized.length() - 1);
-      switch (unit) {
-        case 'n':
-          return value;
-        case 'u':
-          return TimeUnit.MICROSECONDS.toNanos(value);
-        case 'm':
-          return TimeUnit.MILLISECONDS.toNanos(value);
-        case 'S':
-          return TimeUnit.SECONDS.toNanos(value);
-        case 'M':
-          return TimeUnit.MINUTES.toNanos(value);
-        case 'H':
-          return TimeUnit.HOURS.toNanos(value);
-        default:
-          throw new IllegalArgumentException(String.format("Invalid timeout unit: %s", unit));
-      }
-    }
-  }
-
-  /**
-   * Returns a transport out of a PickResult, or {@code null} if the result is "buffer".
-   */
-  @Nullable
-  static ClientTransport getTransportFromPickResult(PickResult result, boolean isWaitForReady) {
-    final ClientTransport transport;
-    Subchannel subchannel = result.getSubchannel();
-    if (subchannel != null) {
-      transport = ((TransportProvider) subchannel.getInternalSubchannel()).obtainActiveTransport();
-    } else {
-      transport = null;
-    }
-    if (transport != null) {
-      final ClientStreamTracer.Factory streamTracerFactory = result.getStreamTracerFactory();
-      if (streamTracerFactory == null) {
-        return transport;
-      }
-      return new ClientTransport() {
-        @Override
-        public ClientStream newStream(
-            MethodDescriptor<?, ?> method, Metadata headers, CallOptions callOptions,
-            ClientStreamTracer[] tracers) {
-          StreamInfo info = StreamInfo.newBuilder().setCallOptions(callOptions).build();
-          ClientStreamTracer streamTracer =
-              newClientStreamTracer(streamTracerFactory, info, headers);
-          checkState(tracers[tracers.length - 1] == NOOP_TRACER, "lb tracer already assigned");
-          tracers[tracers.length - 1] = streamTracer;
-          return transport.newStream(method, headers, callOptions, tracers);
-        }
-
-        @Override
-        public void ping(PingCallback callback, Executor executor) {
-          transport.ping(callback, executor);
-        }
-
-        @Override
-        public InternalLogId getLogId() {
-          return transport.getLogId();
-        }
-
-        @Override
-        public ListenableFuture<SocketStats> getStats() {
-          return transport.getStats();
-        }
-      };
-    }
-    if (!result.getStatus().isOk()) {
-      if (result.isDrop()) {
-        return new FailingClientTransport(result.getStatus(), RpcProgress.DROPPED);
-      }
-      if (!isWaitForReady) {
-        return new FailingClientTransport(result.getStatus(), RpcProgress.PROCESSED);
-      }
-    }
-    return null;
-  }
-
-  /** Gets stream tracers based on CallOptions. */
-  public static ClientStreamTracer[] getClientStreamTracers(
-      CallOptions callOptions, Metadata headers, int previousAttempts, boolean isTransparentRetry) {
-    List<ClientStreamTracer.Factory> factories = callOptions.getStreamTracerFactories();
-    ClientStreamTracer[] tracers = new ClientStreamTracer[factories.size() + 1];
-    StreamInfo streamInfo = StreamInfo.newBuilder()
-        .setCallOptions(callOptions)
-        .setPreviousAttempts(previousAttempts)
-        .setIsTransparentRetry(isTransparentRetry)
-        .build();
-    for (int i = 0; i < factories.size(); i++) {
-      tracers[i] = newClientStreamTracer(factories.get(i), streamInfo, headers);
-    }
-    // Reserved to be set later by the lb as per the API contract of ClientTransport.newStream().
-    // See also GrpcUtil.getTransportFromPickResult()
-    tracers[tracers.length - 1] = NOOP_TRACER;
-    return tracers;
-  }
-
-  // A util function for backward compatibility to support deprecated StreamInfo.getAttributes().
-  @VisibleForTesting
-  static ClientStreamTracer newClientStreamTracer(
-      final ClientStreamTracer.Factory streamTracerFactory, final StreamInfo info,
-      final Metadata headers) {
-    ClientStreamTracer streamTracer;
-    if (streamTracerFactory instanceof InternalLimitedInfoFactory) {
-      streamTracer = streamTracerFactory.newClientStreamTracer(info, headers);
-    } else {
-      streamTracer = new ForwardingClientStreamTracer() {
-        final ClientStreamTracer noop = new ClientStreamTracer() {};
-        volatile ClientStreamTracer delegate = noop;
-
-        void maybeInit(StreamInfo info, Metadata headers) {
-          if (delegate != noop) {
-            return;
-          }
-          synchronized (this) {
-            if (delegate == noop) {
-              delegate = streamTracerFactory.newClientStreamTracer(info, headers);
-            }
-          }
-        }
-
-        @Override
-        protected ClientStreamTracer delegate() {
-          return delegate;
-        }
-
-        @SuppressWarnings("deprecation")
-        @Override
-        public void streamCreated(Attributes transportAttrs, Metadata headers) {
-          StreamInfo streamInfo = info.toBuilder().setTransportAttrs(transportAttrs).build();
-          maybeInit(streamInfo, headers);
-          delegate().streamCreated(transportAttrs, headers);
-        }
-
-        @Override
-        public void streamClosed(Status status) {
-          maybeInit(info, headers);
-          delegate().streamClosed(status);
-        }
-      };
-    }
-    return streamTracer;
-  }
-
-  /** Quietly closes all messages in MessageProducer. */
-  static void closeQuietly(MessageProducer producer) {
-    InputStream message;
-    while ((message = producer.next()) != null) {
-      closeQuietly(message);
-    }
-  }
-
-  /**
-   * Closes a Closeable, ignoring IOExceptions.
-   * This method exists because Guava's {@code Closeables.closeQuietly()} is beta.
-   */
-  public static void closeQuietly(@Nullable Closeable message) {
-    if (message == null) {
-      return;
-    }
-    try {
-      message.close();
-    } catch (IOException ioException) {
-      // do nothing except log
-      log.log(Level.WARNING, "exception caught in closeQuietly", ioException);
-    }
-  }
-
-  /**
-   * Checks whether the given item exists in the iterable.  This is copied from Guava Collect's
-   * {@code Iterables.contains()} because Guava Collect is not Android-friendly thus core can't
-   * depend on it.
-   */
-  static <T> boolean iterableContains(Iterable<T> iterable, T item) {
-    if (iterable instanceof Collection) {
-      Collection<?> collection = (Collection<?>) iterable;
-      try {
-        return collection.contains(item);
-      } catch (NullPointerException e) {
-        return false;
-      } catch (ClassCastException e) {
-        return false;
-      }
-    }
-    for (T i : iterable) {
-      if (Objects.equal(i, item)) {
-        return true;
-      }
-    }
-    return false;
-  }
-
-  private GrpcUtil() {}
-}
diff --git a/contrib/tools/protoc/plugins/grpc_java/bin/parsever/__main__.py b/contrib/tools/protoc/plugins/grpc_java/bin/parsever/__main__.py
deleted file mode 100644
index 28c38c5eb0..0000000000
--- a/contrib/tools/protoc/plugins/grpc_java/bin/parsever/__main__.py
+++ /dev/null
@@ -1,12 +0,0 @@
-import sys
-
-import library.python.resource as lpr
-
-
-def parse_v():
-    for ll in lpr.find('/GrpcUtil.java').decode('utf-8').split('\n'):
-        if 'CURRENT_GRPC_VERSION' in ll:
-            return ll.split('"')[1]
-
-
-assert sys.argv[1] == parse_v(), 'version mismatch'
diff --git a/contrib/tools/protoc/plugins/grpc_java/bin/parsever/ya.make b/contrib/tools/protoc/plugins/grpc_java/bin/parsever/ya.make
deleted file mode 100644
index 2237d039c8..0000000000
--- a/contrib/tools/protoc/plugins/grpc_java/bin/parsever/ya.make
+++ /dev/null
@@ -1,11 +0,0 @@
-PY3_PROGRAM()
-
-PEERDIR(library/python/resource)
-
-RESOURCE(
-    ${ARCADIA_ROOT}/contrib/libs/grpc-java/core/src/main/java/io/grpc/internal/GrpcUtil.java /GrpcUtil.java
-)
-
-PY_SRCS(__main__.py)
-
-END()
diff --git a/contrib/tools/protoc/plugins/grpc_java/bin/test/ya.make b/contrib/tools/protoc/plugins/grpc_java/bin/test/ya.make
deleted file mode 100644
index d196ed450b..0000000000
--- a/contrib/tools/protoc/plugins/grpc_java/bin/test/ya.make
+++ /dev/null
@@ -1,7 +0,0 @@
-EXECTEST()
-
-DEPENDS(contrib/tools/protoc/plugins/grpc_java/bin/parsever)
-INCLUDE(${ARCADIA_ROOT}/contrib/tools/protoc/plugins/grpc_java/bin/ya.version)
-RUN(parsever ${GRPC_JAVA_VERSION})
-
-END()
diff --git a/contrib/tools/protoc/plugins/grpc_java/bin/ya.make b/contrib/tools/protoc/plugins/grpc_java/bin/ya.make
index 34373aefea..4d537f6d7e 100644
--- a/contrib/tools/protoc/plugins/grpc_java/bin/ya.make
+++ b/contrib/tools/protoc/plugins/grpc_java/bin/ya.make
@@ -1,8 +1,6 @@
 PROGRAM(grpc_java)
 
-INCLUDE(ya.version)
-
-VERSION(${GRPC_JAVA_VERSION})
+VERSION(1.43.2)
 
 NO_COMPILER_WARNINGS()
 
diff --git a/contrib/tools/protoc/plugins/grpc_java/bin/ya.version b/contrib/tools/protoc/plugins/grpc_java/bin/ya.version
deleted file mode 100644
index 2990e20e5b..0000000000
--- a/contrib/tools/protoc/plugins/grpc_java/bin/ya.version
+++ /dev/null
@@ -1 +0,0 @@
-SET(GRPC_JAVA_VERSION 1.43.2)
diff --git a/contrib/tools/protoc/plugins/grpc_java/ya.make b/contrib/tools/protoc/plugins/grpc_java/ya.make
index 23d63e89ba..5ce576a1d2 100644
--- a/contrib/tools/protoc/plugins/grpc_java/ya.make
+++ b/contrib/tools/protoc/plugins/grpc_java/ya.make
@@ -8,6 +8,4 @@ ENDIF()
 
 RECURSE(
     bin
-    bin/parsever
-    bin/test
 )