diff --git a/java/google/registry/proxy/BUILD b/java/google/registry/proxy/BUILD
index 79719ae3e..c6d3969d5 100644
--- a/java/google/registry/proxy/BUILD
+++ b/java/google/registry/proxy/BUILD
@@ -18,6 +18,7 @@ java_library(
         "config/*.yaml",
     ]),
     deps = [
+        "//java/com/google/common/logging:formatting_logger",
         "//java/google/registry/config",
         "//java/google/registry/util",
         "@com_beust_jcommander",
diff --git a/java/google/registry/proxy/CertificateModule.java b/java/google/registry/proxy/CertificateModule.java
index a8ad05bac..b5b69a2ad 100644
--- a/java/google/registry/proxy/CertificateModule.java
+++ b/java/google/registry/proxy/CertificateModule.java
@@ -19,11 +19,11 @@ import static com.google.common.collect.ImmutableList.toImmutableList;
 import static java.nio.charset.StandardCharsets.UTF_8;
 
 import com.google.common.collect.ImmutableList;
+import com.google.common.logging.FormattingLogger;
 import dagger.Lazy;
 import dagger.Module;
 import dagger.Provides;
 import google.registry.proxy.ProxyConfig.Environment;
-import google.registry.util.FormattingLogger;
 import io.netty.handler.ssl.util.SelfSignedCertificate;
 import java.io.ByteArrayInputStream;
 import java.io.IOException;
diff --git a/java/google/registry/proxy/EppProtocolModule.java b/java/google/registry/proxy/EppProtocolModule.java
index 35a173232..c454f0342 100644
--- a/java/google/registry/proxy/EppProtocolModule.java
+++ b/java/google/registry/proxy/EppProtocolModule.java
@@ -17,6 +17,7 @@ package google.registry.proxy;
 import static google.registry.util.ResourceUtils.readResourceBytes;
 
 import com.google.common.collect.ImmutableList;
+import com.google.common.logging.FormattingLogger;
 import dagger.Module;
 import dagger.Provides;
 import dagger.multibindings.IntoSet;
@@ -33,7 +34,6 @@ import google.registry.proxy.quota.QuotaConfig;
 import google.registry.proxy.quota.QuotaManager;
 import google.registry.proxy.quota.TokenStore;
 import google.registry.util.Clock;
-import google.registry.util.FormattingLogger;
 import io.netty.channel.ChannelHandler;
 import io.netty.channel.socket.nio.NioSocketChannel;
 import io.netty.handler.codec.LengthFieldBasedFrameDecoder;
diff --git a/java/google/registry/proxy/MetricsModule.java b/java/google/registry/proxy/MetricsModule.java
index 6086f6e4f..c128be1f7 100644
--- a/java/google/registry/proxy/MetricsModule.java
+++ b/java/google/registry/proxy/MetricsModule.java
@@ -19,6 +19,7 @@ import com.google.api.client.googleapis.util.Utils;
 import com.google.api.services.monitoring.v3.Monitoring;
 import com.google.api.services.monitoring.v3.model.MonitoredResource;
 import com.google.common.collect.ImmutableMap;
+import com.google.common.logging.FormattingLogger;
 import com.google.common.util.concurrent.ThreadFactoryBuilder;
 import com.google.monitoring.metrics.MetricReporter;
 import com.google.monitoring.metrics.MetricWriter;
@@ -28,7 +29,6 @@ import dagger.Module;
 import dagger.Provides;
 import google.registry.proxy.ProxyConfig.Environment;
 import google.registry.proxy.metric.MetricParameters;
-import google.registry.util.FormattingLogger;
 import javax.inject.Singleton;
 
 /** Module that provides necessary bindings to instantiate a {@link MetricReporter} */
diff --git a/java/google/registry/proxy/ProxyModule.java b/java/google/registry/proxy/ProxyModule.java
index ab8c51120..fa5a7a07a 100644
--- a/java/google/registry/proxy/ProxyModule.java
+++ b/java/google/registry/proxy/ProxyModule.java
@@ -28,6 +28,7 @@ import com.google.api.services.cloudkms.v1.model.DecryptRequest;
 import com.google.api.services.storage.Storage;
 import com.google.common.collect.ImmutableMap;
 import com.google.common.collect.Maps;
+import com.google.common.logging.FormattingLogger;
 import com.google.monitoring.metrics.MetricReporter;
 import dagger.Component;
 import dagger.Module;
@@ -38,7 +39,6 @@ import google.registry.proxy.Protocol.FrontendProtocol;
 import google.registry.proxy.ProxyConfig.Environment;
 import google.registry.proxy.WhoisProtocolModule.WhoisProtocol;
 import google.registry.util.Clock;
-import google.registry.util.FormattingLogger;
 import google.registry.util.SystemClock;
 import io.netty.handler.logging.LogLevel;
 import io.netty.handler.logging.LoggingHandler;
diff --git a/java/google/registry/proxy/ProxyServer.java b/java/google/registry/proxy/ProxyServer.java
index e896ceffe..a7f4dcf6b 100644
--- a/java/google/registry/proxy/ProxyServer.java
+++ b/java/google/registry/proxy/ProxyServer.java
@@ -20,11 +20,11 @@ import static google.registry.proxy.handler.RelayHandler.RELAY_CHANNEL_KEY;
 import com.google.common.collect.ImmutableList;
 import com.google.common.collect.ImmutableMap;
 import com.google.common.flogger.FluentLogger;
+import com.google.common.logging.FormattingLogger;
 import com.google.monitoring.metrics.MetricReporter;
 import google.registry.proxy.Protocol.BackendProtocol;
 import google.registry.proxy.Protocol.FrontendProtocol;
 import google.registry.proxy.ProxyModule.ProxyComponent;
-import google.registry.util.FormattingLogger;
 import io.netty.bootstrap.Bootstrap;
 import io.netty.bootstrap.ServerBootstrap;
 import io.netty.channel.Channel;
diff --git a/java/google/registry/proxy/handler/EppServiceHandler.java b/java/google/registry/proxy/handler/EppServiceHandler.java
index 36916d551..f64cd82a2 100644
--- a/java/google/registry/proxy/handler/EppServiceHandler.java
+++ b/java/google/registry/proxy/handler/EppServiceHandler.java
@@ -20,8 +20,8 @@ import static google.registry.proxy.handler.ProxyProtocolHandler.REMOTE_ADDRESS_
 import static google.registry.proxy.handler.SslServerInitializer.CLIENT_CERTIFICATE_PROMISE_KEY;
 import static google.registry.util.X509Utils.getCertificateHash;
 
+import com.google.common.logging.FormattingLogger;
 import google.registry.proxy.metric.FrontendMetrics;
-import google.registry.util.FormattingLogger;
 import io.netty.buffer.ByteBuf;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.ChannelFuture;
diff --git a/java/google/registry/proxy/handler/HttpsRelayServiceHandler.java b/java/google/registry/proxy/handler/HttpsRelayServiceHandler.java
index f9a3c630b..6104d5688 100644
--- a/java/google/registry/proxy/handler/HttpsRelayServiceHandler.java
+++ b/java/google/registry/proxy/handler/HttpsRelayServiceHandler.java
@@ -17,8 +17,8 @@ package google.registry.proxy.handler;
 import static com.google.common.base.Preconditions.checkArgument;
 import static java.nio.charset.StandardCharsets.UTF_8;
 
+import com.google.common.logging.FormattingLogger;
 import google.registry.proxy.metric.FrontendMetrics;
-import google.registry.util.FormattingLogger;
 import io.netty.buffer.ByteBuf;
 import io.netty.channel.ChannelFuture;
 import io.netty.channel.ChannelHandlerContext;
diff --git a/java/google/registry/proxy/handler/ProxyProtocolHandler.java b/java/google/registry/proxy/handler/ProxyProtocolHandler.java
index 0856d1665..e0bfd609e 100644
--- a/java/google/registry/proxy/handler/ProxyProtocolHandler.java
+++ b/java/google/registry/proxy/handler/ProxyProtocolHandler.java
@@ -17,7 +17,7 @@ package google.registry.proxy.handler;
 import static com.google.common.base.Preconditions.checkState;
 import static java.nio.charset.StandardCharsets.US_ASCII;
 
-import google.registry.util.FormattingLogger;
+import com.google.common.logging.FormattingLogger;
 import io.netty.buffer.ByteBuf;
 import io.netty.channel.ChannelHandlerContext;
 import io.netty.handler.codec.ByteToMessageDecoder;
diff --git a/java/google/registry/proxy/handler/RelayHandler.java b/java/google/registry/proxy/handler/RelayHandler.java
index 6df16e9ea..33557c4a1 100644
--- a/java/google/registry/proxy/handler/RelayHandler.java
+++ b/java/google/registry/proxy/handler/RelayHandler.java
@@ -16,7 +16,7 @@ package google.registry.proxy.handler;
 
 import static com.google.common.base.Preconditions.checkNotNull;
 
-import google.registry.util.FormattingLogger;
+import com.google.common.logging.FormattingLogger;
 import io.netty.channel.Channel;
 import io.netty.channel.ChannelFuture;
 import io.netty.channel.ChannelHandlerContext;
@@ -47,7 +47,7 @@ public class RelayHandler<I> extends SimpleChannelInboundHandler<I> {
   @Override
   public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) throws Exception {
     logger.severefmt(cause, "Inbound exception caught for channel %s", ctx.channel());
-    ctx.close();
+    ChannelFuture unusedFuture = ctx.close();
   }
 
   /** Close relay channel if this channel is closed. */
@@ -55,7 +55,7 @@ public class RelayHandler<I> extends SimpleChannelInboundHandler<I> {
   public void channelInactive(ChannelHandlerContext ctx) throws Exception {
     Channel relayChannel = ctx.channel().attr(RELAY_CHANNEL_KEY).get();
     if (relayChannel != null) {
-      relayChannel.close();
+      ChannelFuture unusedFuture = relayChannel.close();
     }
     ctx.fireChannelInactive();
   }
@@ -72,12 +72,12 @@ public class RelayHandler<I> extends SimpleChannelInboundHandler<I> {
           future -> {
             // Cannot write into relay channel, close this channel.
             if (!future.isSuccess()) {
-              ctx.close();
+              ChannelFuture unusedFuture = ctx.close();
             }
           });
     } else {
       // close this channel if the relay channel is closed.
-      ctx.close();
+      ChannelFuture unusedFuture = ctx.close();
     }
   }
 
diff --git a/java/google/registry/proxy/handler/SslClientInitializer.java b/java/google/registry/proxy/handler/SslClientInitializer.java
index 792ae34f7..9b96d158d 100644
--- a/java/google/registry/proxy/handler/SslClientInitializer.java
+++ b/java/google/registry/proxy/handler/SslClientInitializer.java
@@ -17,9 +17,9 @@ package google.registry.proxy.handler;
 import static com.google.common.base.Preconditions.checkNotNull;
 import static google.registry.proxy.Protocol.PROTOCOL_KEY;
 
+import com.google.common.logging.FormattingLogger;
 import google.registry.proxy.HttpsRelayProtocolModule.HttpsRelayProtocol;
 import google.registry.proxy.Protocol.BackendProtocol;
-import google.registry.util.FormattingLogger;
 import io.netty.channel.Channel;
 import io.netty.channel.ChannelHandler.Sharable;
 import io.netty.channel.ChannelInitializer;
diff --git a/java/google/registry/proxy/handler/SslServerInitializer.java b/java/google/registry/proxy/handler/SslServerInitializer.java
index abb185326..b4e1aa178 100644
--- a/java/google/registry/proxy/handler/SslServerInitializer.java
+++ b/java/google/registry/proxy/handler/SslServerInitializer.java
@@ -14,8 +14,8 @@
 
 package google.registry.proxy.handler;
 
+import com.google.common.logging.FormattingLogger;
 import google.registry.proxy.CertificateModule.EppCertificates;
-import google.registry.util.FormattingLogger;
 import io.netty.channel.Channel;
 import io.netty.channel.ChannelHandler.Sharable;
 import io.netty.channel.ChannelInitializer;
diff --git a/java/google/registry/proxy/metric/MetricParameters.java b/java/google/registry/proxy/metric/MetricParameters.java
index 316a9f4b8..64abb6f68 100644
--- a/java/google/registry/proxy/metric/MetricParameters.java
+++ b/java/google/registry/proxy/metric/MetricParameters.java
@@ -19,7 +19,7 @@ import static java.nio.charset.StandardCharsets.UTF_8;
 import com.google.api.services.monitoring.v3.model.MonitoredResource;
 import com.google.common.collect.ImmutableMap;
 import com.google.common.io.CharStreams;
-import google.registry.util.FormattingLogger;
+import com.google.common.logging.FormattingLogger;
 import java.io.IOException;
 import java.io.InputStreamReader;
 import java.net.HttpURLConnection;
diff --git a/java/google/registry/proxy/quota/TokenStore.java b/java/google/registry/proxy/quota/TokenStore.java
index 017b7d1f7..5cf7433fe 100644
--- a/java/google/registry/proxy/quota/TokenStore.java
+++ b/java/google/registry/proxy/quota/TokenStore.java
@@ -20,8 +20,8 @@ import static java.lang.StrictMath.min;
 
 import com.google.auto.value.AutoValue;
 import com.google.common.annotations.VisibleForTesting;
+import com.google.common.logging.FormattingLogger;
 import google.registry.util.Clock;
-import google.registry.util.FormattingLogger;
 import java.util.concurrent.ConcurrentHashMap;
 import java.util.concurrent.Future;
 import java.util.concurrent.ScheduledExecutorService;