Remove unused imports and reuse method

Author: zoewangg

http-clients/netty-nio-client/src/main/java/software/amazon/awssdk/http/nio/netty/internal/NettyRequestMetrics.java

@@ -64,17 +64,9 @@ public static void ifMetricsAreEnabled(MetricCollector metrics, Consumer<MetricC
      * the stream has been initialized. If the stream is not initialized when this is invoked, an exception will be thrown.
      */
     public static void publishHttp2StreamMetrics(MetricCollector metricCollector, Channel channel) {
-        if (!metricsAreEnabled(metricCollector)) {
-            return;
-        }
 
-        try {
-            getHttp2Connection(channel).ifPresent(http2Connection -> {
-                writeHttp2RequestMetrics(metricCollector, channel, http2Connection);
-            });
-        } catch (Exception e) {
-            logger.warn(null, () -> "Failed to collect metrics", e);
-        }
+        ifMetricsAreEnabled(metricCollector, collector -> getHttp2Connection(channel)
+            .ifPresent(http2Connection -> writeHttp2RequestMetrics(collector, channel, http2Connection)));
     }
 
     private static Optional<Http2Connection> getHttp2Connection(Channel channel) {

http-clients/netty-nio-client/src/test/java/software/amazon/awssdk/http/nio/netty/Http2MetricsTest.java

@@ -38,10 +38,8 @@
 import io.netty.util.ReferenceCountUtil;
 import java.net.URI;
 import org.junit.jupiter.api.AfterAll;
-import org.junit.jupiter.api.Assertions;
 import org.junit.jupiter.api.BeforeAll;
 import org.junit.jupiter.api.Test;
-import org.mockito.Mockito;
 import software.amazon.awssdk.http.EmptyPublisher;
 import software.amazon.awssdk.http.Http2Metric;
 import software.amazon.awssdk.http.HttpMetric;
@@ -53,7 +51,6 @@
 import software.amazon.awssdk.http.async.SdkAsyncHttpClient;
 import software.amazon.awssdk.metrics.MetricCollection;
 import software.amazon.awssdk.metrics.MetricCollector;
-import software.amazon.awssdk.metrics.SdkMetric;
 
 public class Http2MetricsTest {
     private static final int H2_DEFAULT_WINDOW_SIZE = 65535;