Merge pull request #937 from DataDog/tyler/http-server-testing

Servlet 2, Akka Http, Vert.x testing - Migrate to HttpServerTest

dd-java-agent/instrumentation/akka-http-10.0/src/main/java/datadog/trace/instrumentation/akkahttp/AkkaHttpServerInstrumentation.java

@@ -104,6 +104,7 @@ public final class AkkaHttpServerInstrumentation extends Instrumenter.Default {
       final Scope scope =
           GlobalTracer.get()
               .buildSpan("akka-http.request")
+              .ignoreActiveSpan()
               .asChildOf(extractedContext)
               .startActive(false);
 

dd-java-agent/instrumentation/akka-http-10.0/src/test/groovy/AkkaHttpServerInstrumentationTest.groovy

@@ -1,188 +1,91 @@
-import datadog.trace.agent.test.AgentTestRunner
+import datadog.trace.agent.test.asserts.TraceAssert
-import datadog.trace.agent.test.utils.OkHttpUtils
+import datadog.trace.agent.test.base.HttpServerTest
 import datadog.trace.api.DDSpanTypes
+import datadog.trace.instrumentation.akkahttp.AkkaHttpServerDecorator
 import io.opentracing.tag.Tags
-import okhttp3.Request
-import spock.lang.Shared
 
-class AkkaHttpServerInstrumentationTest extends AgentTestRunner {
+import static datadog.trace.agent.test.base.HttpServerTest.ServerEndpoint.EXCEPTION
+import static datadog.trace.agent.test.base.HttpServerTest.ServerEndpoint.SUCCESS
 
-  @Shared
+abstract class AkkaHttpServerInstrumentationTest extends HttpServerTest<AkkaHttpServerDecorator> {
-  int asyncPort
-  @Shared
-  int syncPort
 
-  @Shared
+  @Override
-  def client = OkHttpUtils.client()
+  AkkaHttpServerDecorator decorator() {
-
+    return AkkaHttpServerDecorator.DECORATE
-  def setupSpec() {
-    AkkaHttpTestAsyncWebServer.start()
-    asyncPort = AkkaHttpTestAsyncWebServer.port()
-    AkkaHttpTestSyncWebServer.start()
-    syncPort = AkkaHttpTestSyncWebServer.port()
   }
 
-  def cleanupSpec() {
+  @Override
-    AkkaHttpTestAsyncWebServer.stop()
+  String expectedOperationName() {
-    AkkaHttpTestSyncWebServer.stop()
+    return "akka-http.request"
   }
 
-  def "#server 200 request trace"() {
+  @Override
-    setup:
+  boolean testExceptionBody() {
-    def request = new Request.Builder()
+    false
-      .url("http://localhost:$port/test")
+  }
-      .header("x-datadog-trace-id", "123")
-      .header("x-datadog-parent-id", "456")
-      .get()
-      .build()
-    def response = client.newCall(request).execute()
 
-    expect:
+// FIXME: This doesn't work because we don't support bindAndHandle.
-    response.code() == 200
+//  @Override
+//  void startServer(int port) {
+//    AkkaHttpTestWebServer.start(port)
+//  }
+//
+//  @Override
+//  void stopServer() {
+//    AkkaHttpTestWebServer.stop()
+//  }
 
-    assertTraces(1) {
+  void serverSpan(TraceAssert trace, int index, String traceID = null, String parentID = null, String method = "GET", ServerEndpoint endpoint = SUCCESS) {
-      trace(0, 2) {
+    trace.span(index) {
-        span(0) {
+      serviceName expectedServiceName()
-          traceId "123"
+      operationName expectedOperationName()
-          parentId "456"
+      resourceName endpoint.status == 404 ? "404" : "$method ${endpoint.resolve(address).path}"
-          serviceName "unnamed-java-app"
+      spanType DDSpanTypes.HTTP_SERVER
-          operationName "akka-http.request"
+      errored endpoint.errored
-          resourceName "GET /test"
+      if (parentID != null) {
-          spanType DDSpanTypes.HTTP_SERVER
+        traceId traceID
-          errored false
+        parentId parentID
-          tags {
+      } else {
-            defaultTags(true)
+        parent()
-            "$Tags.HTTP_STATUS.key" 200
+      }
-            "$Tags.HTTP_URL.key" "http://localhost:$port/test"
+      tags {
-            "$Tags.HTTP_METHOD.key" "GET"
+        defaultTags(true)
-            "$Tags.SPAN_KIND.key" Tags.SPAN_KIND_SERVER
+        "$Tags.COMPONENT.key" serverDecorator.component()
-            "$Tags.COMPONENT.key" "akka-http-server"
+        if (endpoint.errored) {
-          }
+          "$Tags.ERROR.key" endpoint.errored
-        }
+          "error.msg" { it == null || it == EXCEPTION.body }
-        span(1) {
+          "error.type" { it == null || it == Exception.name }
-          childOf span(0)
+          "error.stack" { it == null || it instanceof String }
-          assert span(1).operationName.endsWith('.tracedMethod')
         }
+        "$Tags.HTTP_STATUS.key" endpoint.status
+        "$Tags.HTTP_URL.key" "${endpoint.resolve(address)}"
+        "$Tags.HTTP_METHOD.key" method
+        "$Tags.SPAN_KIND.key" Tags.SPAN_KIND_SERVER
       }
     }
-
+  }
-    where:
+}
-    server  | port
+
-    "async" | asyncPort
+class AkkaHttpServerInstrumentationTestSync extends AkkaHttpServerInstrumentationTest {
-    "sync"  | syncPort
+  @Override
-  }
+  void startServer(int port) {
-
+    AkkaHttpTestSyncWebServer.start(port)
-  def "#server exceptions trace for #endpoint"() {
+  }
-    setup:
+
-    def request = new Request.Builder()
+  @Override
-      .url("http://localhost:$port/$endpoint")
+  void stopServer() {
-      .get()
+    AkkaHttpTestSyncWebServer.stop()
-      .build()
+  }
-    def response = client.newCall(request).execute()
+}
-
+
-    expect:
+class AkkaHttpServerInstrumentationTestAsync extends AkkaHttpServerInstrumentationTest {
-    response.code() == 500
+  @Override
-
+  void startServer(int port) {
-    assertTraces(1) {
+    AkkaHttpTestAsyncWebServer.start(port)
-      trace(0, 1) {
+  }
-        span(0) {
+
-          serviceName "unnamed-java-app"
+  @Override
-          operationName "akka-http.request"
+  void stopServer() {
-          resourceName "GET /$endpoint"
+    AkkaHttpTestAsyncWebServer.stop()
-          spanType DDSpanTypes.HTTP_SERVER
-          errored true
-          tags {
-            defaultTags()
-            "$Tags.HTTP_STATUS.key" 500
-            "$Tags.HTTP_URL.key" "http://localhost:$port/$endpoint"
-            "$Tags.HTTP_METHOD.key" "GET"
-            "$Tags.SPAN_KIND.key" Tags.SPAN_KIND_SERVER
-            "$Tags.COMPONENT.key" "akka-http-server"
-            errorTags RuntimeException, errorMessage
-          }
-        }
-      }
-    }
-
-    where:
-    server  | port      | endpoint         | errorMessage
-    "async" | asyncPort | "throw-handler"  | "Oh no handler"
-    "async" | asyncPort | "throw-callback" | "Oh no callback"
-    "sync"  | syncPort  | "throw-handler"  | "Oh no handler"
-  }
-
-  def "#server 5xx trace"() {
-    setup:
-    def request = new Request.Builder()
-      .url("http://localhost:$port/server-error")
-      .get()
-      .build()
-    def response = client.newCall(request).execute()
-
-    expect:
-    response.code() == 500
-
-    assertTraces(1) {
-      trace(0, 1) {
-        span(0) {
-          serviceName "unnamed-java-app"
-          operationName "akka-http.request"
-          resourceName "GET /server-error"
-          spanType DDSpanTypes.HTTP_SERVER
-          errored true
-          tags {
-            defaultTags()
-            "$Tags.HTTP_STATUS.key" 500
-            "$Tags.HTTP_URL.key" "http://localhost:$port/server-error"
-            "$Tags.HTTP_METHOD.key" "GET"
-            "$Tags.SPAN_KIND.key" Tags.SPAN_KIND_SERVER
-            "$Tags.COMPONENT.key" "akka-http-server"
-            "$Tags.ERROR.key" true
-          }
-        }
-      }
-    }
-
-    where:
-    server  | port
-    "async" | asyncPort
-    "sync"  | syncPort
-  }
-
-  def "#server 4xx trace"() {
-    setup:
-    def request = new Request.Builder()
-      .url("http://localhost:$port/not-found")
-      .get()
-      .build()
-    def response = client.newCall(request).execute()
-
-    expect:
-    response.code() == 404
-
-    assertTraces(1) {
-      trace(0, 1) {
-        span(0) {
-          serviceName "unnamed-java-app"
-          operationName "akka-http.request"
-          resourceName "404"
-          spanType DDSpanTypes.HTTP_SERVER
-          errored false
-          tags {
-            defaultTags()
-            "$Tags.HTTP_STATUS.key" 404
-            "$Tags.HTTP_URL.key" "http://localhost:$port/not-found"
-            "$Tags.HTTP_METHOD.key" "GET"
-            "$Tags.SPAN_KIND.key" Tags.SPAN_KIND_SERVER
-            "$Tags.COMPONENT.key" "akka-http-server"
-          }
-        }
-      }
-    }
-
-    where:
-    server  | port
-    "async" | asyncPort
-    "sync"  | syncPort
   }
 }

dd-java-agent/instrumentation/akka-http-10.0/src/test/groovy/AkkaHttpTestInstrumentation.java

@@ -0,0 +1,19 @@
+import static net.bytebuddy.matcher.ElementMatchers.named;
+
+import com.google.auto.service.AutoService;
+import datadog.trace.agent.test.base.HttpServerTestAdvice;
+import datadog.trace.agent.tooling.Instrumenter;
+import net.bytebuddy.agent.builder.AgentBuilder;
+
+@AutoService(Instrumenter.class)
+public class AkkaHttpTestInstrumentation implements Instrumenter {
+
+  @Override
+  public AgentBuilder instrument(final AgentBuilder agentBuilder) {
+    return agentBuilder
+        .type(named("akka.http.impl.engine.server.HttpServerBluePrint$PrepareRequests$$anon$1"))
+        .transform(
+            new AgentBuilder.Transformer.ForAdvice()
+                .advice(named("onPush"), HttpServerTestAdvice.ServerEntryAdvice.class.getName()));
+  }
+}

dd-java-agent/instrumentation/akka-http-10.0/src/test/scala/AkkaHttpTestAsyncWebServer.scala

@@ -0,0 +1,54 @@
+import akka.actor.ActorSystem
+import akka.http.scaladsl.Http
+import akka.http.scaladsl.Http.ServerBinding
+import akka.http.scaladsl.model.HttpMethods.GET
+import akka.http.scaladsl.model._
+import akka.stream.ActorMaterializer
+import datadog.trace.agent.test.base.HttpServerTest
+import datadog.trace.agent.test.base.HttpServerTest.ServerEndpoint._
+import groovy.lang.Closure
+
+import scala.concurrent.{Await, Future}
+
+object AkkaHttpTestAsyncWebServer {
+  implicit val system = ActorSystem("my-system")
+  implicit val materializer = ActorMaterializer()
+  // needed for the future flatMap/onComplete in the end
+  implicit val executionContext = system.dispatcher
+  val asyncHandler: HttpRequest => Future[HttpResponse] = {
+    case HttpRequest(GET, uri: Uri, _, _, _) => {
+      Future {
+        val endpoint = HttpServerTest.ServerEndpoint.forPath(uri.path.toString())
+        HttpServerTest.controller(endpoint, new Closure[HttpResponse]() {
+          def doCall(): HttpResponse = {
+            val resp = HttpResponse(status = endpoint.getStatus) //.withHeaders(headers.Type)resp.contentType = "text/plain"
+            endpoint match {
+              case SUCCESS => resp.withEntity(endpoint.getBody)
+              case REDIRECT => resp.withHeaders(headers.Location(endpoint.getBody))
+              case ERROR => resp.withEntity(endpoint.getBody)
+              case EXCEPTION => throw new Exception(endpoint.getBody)
+              case _ => HttpResponse(status = NOT_FOUND.getStatus).withEntity(NOT_FOUND.getBody)
+            }
+          }
+        })
+      }
+    }
+  }
+
+  private var binding: ServerBinding = null
+
+  def start(port: Int): Unit = synchronized {
+    if (null == binding) {
+      import scala.concurrent.duration._
+      binding = Await.result(Http().bindAndHandleAsync(asyncHandler, "localhost", port), 10 seconds)
+    }
+  }
+
+  def stop(): Unit = synchronized {
+    if (null != binding) {
+      binding.unbind()
+      system.terminate()
+      binding = null
+    }
+  }
+}

dd-java-agent/instrumentation/akka-http-10.0/src/test/scala/AkkaHttpTestSyncWebServer.scala

@@ -0,0 +1,52 @@
+import akka.actor.ActorSystem
+import akka.http.scaladsl.Http
+import akka.http.scaladsl.Http.ServerBinding
+import akka.http.scaladsl.model.HttpMethods.GET
+import akka.http.scaladsl.model._
+import akka.stream.ActorMaterializer
+import datadog.trace.agent.test.base.HttpServerTest
+import datadog.trace.agent.test.base.HttpServerTest.ServerEndpoint._
+import groovy.lang.Closure
+
+import scala.concurrent.Await
+
+object AkkaHttpTestSyncWebServer {
+  implicit val system = ActorSystem("my-system")
+  implicit val materializer = ActorMaterializer()
+  // needed for the future flatMap/onComplete in the end
+  implicit val executionContext = system.dispatcher
+  val syncHandler: HttpRequest => HttpResponse = {
+    case HttpRequest(GET, uri: Uri, _, _, _) => {
+      val endpoint = HttpServerTest.ServerEndpoint.forPath(uri.path.toString())
+      HttpServerTest.controller(endpoint, new Closure[HttpResponse]() {
+        def doCall(): HttpResponse = {
+          val resp = HttpResponse(status = endpoint.getStatus)
+          endpoint match {
+            case SUCCESS => resp.withEntity(endpoint.getBody)
+            case REDIRECT => resp.withHeaders(headers.Location(endpoint.getBody))
+            case ERROR => resp.withEntity(endpoint.getBody)
+            case EXCEPTION => throw new Exception(endpoint.getBody)
+            case _ => HttpResponse(status = NOT_FOUND.getStatus).withEntity(NOT_FOUND.getBody)
+          }
+        }
+      })
+    }
+  }
+
+  private var binding: ServerBinding = null
+
+  def start(port: Int): Unit = synchronized {
+    if (null == binding) {
+      import scala.concurrent.duration._
+      binding = Await.result(Http().bindAndHandleSync(syncHandler, "localhost", port), 10 seconds)
+    }
+  }
+
+  def stop(): Unit = synchronized {
+    if (null != binding) {
+      binding.unbind()
+      system.terminate()
+      binding = null
+    }
+  }
+}

dd-java-agent/instrumentation/akka-http-10.0/src/test/scala/AkkaHttpTestWebServer.scala

@@ -1,48 +1,43 @@
 import akka.actor.ActorSystem
 import akka.http.scaladsl.Http
 import akka.http.scaladsl.Http.ServerBinding
-import akka.http.scaladsl.model.HttpMethods.GET
 import akka.http.scaladsl.model._
+import akka.http.scaladsl.server.Directives._
+import akka.http.scaladsl.server.ExceptionHandler
 import akka.stream.ActorMaterializer
-import datadog.trace.agent.test.utils.PortUtils
+import datadog.trace.agent.test.base.HttpServerTest.ServerEndpoint._
-import datadog.trace.api.Trace
 
-import scala.concurrent.{Await, Future}
+import scala.concurrent.Await
 
-object AkkaHttpTestAsyncWebServer {
+// FIXME: This doesn't work because we don't support bindAndHandle.
-  val port = PortUtils.randomOpenPort()
+object AkkaHttpTestWebServer {
   implicit val system = ActorSystem("my-system")
   implicit val materializer = ActorMaterializer()
   // needed for the future flatMap/onComplete in the end
   implicit val executionContext = system.dispatcher
-  val asyncHandler: HttpRequest => Future[HttpResponse] = {
+
-    case HttpRequest(GET, Uri.Path("/test"), _, _, _) =>
+  val exceptionHandler = ExceptionHandler {
-      Future {
+    case ex: Exception => complete(HttpResponse(status = EXCEPTION.getStatus).withEntity(ex.getMessage))
-        tracedMethod()
+  }
-        HttpResponse(entity = "Hello unit test.")
+
-      }
+  val route = { //handleExceptions(exceptionHandler) {
-    case HttpRequest(GET, Uri.Path("/throw-handler"), _, _, _) =>
+    path(SUCCESS.rawPath) {
-      sys.error("Oh no handler")
+      complete(HttpResponse(status = SUCCESS.getStatus).withEntity(SUCCESS.getBody))
-    case HttpRequest(GET, Uri.Path("/throw-callback"), _, _, _) =>
+    } ~ path(REDIRECT.rawPath) {
-      Future {
+      redirect(Uri(REDIRECT.getBody), StatusCodes.Found)
-        sys.error("Oh no callback")
+    } ~ path(ERROR.rawPath) {
-      }
+      complete(HttpResponse(status = ERROR.getStatus).withEntity(ERROR.getBody))
-    case HttpRequest(GET, Uri.Path("/server-error"), _, _, _) =>
+    } ~ path(EXCEPTION.rawPath) {
-      Future {
+      failWith(new Exception(EXCEPTION.getBody))
-        HttpResponse(entity = "Error unit test.", status = StatusCodes.InternalServerError)
+    }
-      }
-    case _ =>
-      Future {
-        HttpResponse(entity = "Not found unit test.", status = StatusCodes.NotFound)
-      }
   }
 
   private var binding: ServerBinding = null
 
-  def start(): Unit = synchronized {
+  def start(port: Int): Unit = synchronized {
     if (null == binding) {
       import scala.concurrent.duration._
-      binding = Await.result(Http().bindAndHandleAsync(asyncHandler, "localhost", port), 10 seconds)
+      binding = Await.result(Http().bindAndHandle(route, "localhost", port), 10 seconds)
     }
   }
 
@@ -53,48 +48,4 @@ object AkkaHttpTestAsyncWebServer {
       binding = null
     }
   }
-
-  @Trace
-  def tracedMethod(): Unit = {
-  }
-}
-
-object AkkaHttpTestSyncWebServer {
-  val port = PortUtils.randomOpenPort()
-  implicit val system = ActorSystem("my-system")
-  implicit val materializer = ActorMaterializer()
-  // needed for the future flatMap/onComplete in the end
-  implicit val executionContext = system.dispatcher
-  val syncHandler: HttpRequest => HttpResponse = {
-    case HttpRequest(GET, Uri.Path("/test"), _, _, _) =>
-      tracedMethod()
-      HttpResponse(entity = "Hello unit test.")
-    case HttpRequest(GET, Uri.Path("/throw-handler"), _, _, _) =>
-      sys.error("Oh no handler")
-    case HttpRequest(GET, Uri.Path("/server-error"), _, _, _) =>
-      HttpResponse(entity = "Error unit test.", status = StatusCodes.InternalServerError)
-    case _ =>
-      HttpResponse(entity = "Not found unit test.", status = StatusCodes.NotFound)
-  }
-
-  private var binding: ServerBinding = null
-
-  def start(): Unit = synchronized {
-    if (null == binding) {
-      import scala.concurrent.duration._
-      binding = Await.result(Http().bindAndHandleSync(syncHandler, "localhost", port), 10 seconds)
-    }
-  }
-
-  def stop(): Unit = synchronized {
-    if (null != binding) {
-      binding.unbind()
-      system.terminate()
-      binding = null
-    }
-  }
-
-  @Trace
-  def tracedMethod(): Unit = {
-  }
 }

dd-java-agent/instrumentation/netty-4.0/netty-4.0.gradle

@@ -19,6 +19,12 @@ muzzle {
     versions = "[4.0.0.Final,4.1.0.Final)"
     assertInverse = true
   }
+  pass {
+    group = "io.vertx"
+    module = "vertx-core"
+    versions = "[2.0.0,3.3.0)"
+    assertInverse = true
+  }
 }
 
 apply plugin: 'org.unbroken-dome.test-sets'

dd-java-agent/instrumentation/netty-4.1/netty-4.1.gradle

@@ -18,6 +18,12 @@ muzzle {
     versions = "[4.1.0.Final,)"
     assertInverse = true
   }
+  pass {
+    group = "io.vertx"
+    module = "vertx-core"
+    versions = "[3.3.0,)"
+    assertInverse = true
+  }
 }
 
 apply plugin: 'org.unbroken-dome.test-sets'

dd-java-agent/instrumentation/servlet-2/servlet-2.gradle

@@ -11,6 +11,14 @@ muzzle {
 
 apply from: "${rootDir}/gradle/java.gradle"
 
+apply plugin: 'org.unbroken-dome.test-sets'
+
+testSets {
+  latestDepTest {
+    dirName = 'test'
+  }
+}
+
 dependencies {
   compileOnly group: 'javax.servlet', name: 'servlet-api', version: '2.3'
 
@@ -26,4 +34,7 @@ dependencies {
   }
   testCompile group: 'org.eclipse.jetty', name: 'jetty-server', version: '7.0.0.v20091005'
   testCompile group: 'org.eclipse.jetty', name: 'jetty-servlet', version: '7.0.0.v20091005'
+
+  latestDepTestCompile group: 'org.eclipse.jetty', name: 'jetty-server', version: '7.+'
+  latestDepTestCompile group: 'org.eclipse.jetty', name: 'jetty-servlet', version: '7.+'
 }

dd-java-agent/instrumentation/servlet-2/src/main/java/datadog/trace/instrumentation/servlet2/AbstractServlet2Instrumentation.java

@@ -24,9 +24,10 @@ public abstract class AbstractServlet2Instrumentation extends Instrumenter.Defau
       "datadog.trace.agent.decorator.BaseDecorator",
       "datadog.trace.agent.decorator.ServerDecorator",
       "datadog.trace.agent.decorator.HttpServerDecorator",
+      packageName + ".Servlet2Decorator",
       packageName + ".HttpServletRequestExtractAdapter",
       packageName + ".HttpServletRequestExtractAdapter$MultivaluedMapFlatIterator",
-      packageName + ".Servlet2Decorator",
+      packageName + ".StatusSavingHttpServletResponseWrapper",
     };
   }
 }

dd-java-agent/instrumentation/servlet-2/src/main/java/datadog/trace/instrumentation/servlet2/Servlet2Advice.java

@@ -8,23 +8,35 @@ import io.opentracing.Scope;
 import io.opentracing.Span;
 import io.opentracing.SpanContext;
 import io.opentracing.propagation.Format;
+import io.opentracing.tag.Tags;
 import io.opentracing.util.GlobalTracer;
 import java.security.Principal;
 import javax.servlet.ServletRequest;
 import javax.servlet.ServletResponse;
 import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
 import net.bytebuddy.asm.Advice;
+import net.bytebuddy.implementation.bytecode.assign.Assigner;
 
 public class Servlet2Advice {
+  public static final String SERVLET_SPAN = "datadog.servlet.span";
 
   @Advice.OnMethodEnter(suppress = Throwable.class)
   public static Scope startSpan(
-      @Advice.This final Object servlet, @Advice.Argument(0) final ServletRequest req) {
+      @Advice.This final Object servlet,
-    if (GlobalTracer.get().activeSpan() != null || !(req instanceof HttpServletRequest)) {
+      @Advice.Argument(0) final ServletRequest req,
+      @Advice.Argument(value = 1, readOnly = false, typing = Assigner.Typing.DYNAMIC)
+          ServletResponse resp) {
+    final Object spanAttr = req.getAttribute(SERVLET_SPAN);
+    if (!(req instanceof HttpServletRequest) || spanAttr != null) {
       // Tracing might already be applied by the FilterChain.  If so ignore this.
       return null;
     }
 
+    if (resp instanceof HttpServletResponse) {
+      resp = new StatusSavingHttpServletResponseWrapper((HttpServletResponse) resp);
+    }
+
     final HttpServletRequest httpServletRequest = (HttpServletRequest) req;
     final SpanContext extractedContext =
         GlobalTracer.get()
@@ -35,6 +47,7 @@ public class Servlet2Advice {
     final Scope scope =
         GlobalTracer.get()
             .buildSpan("servlet.request")
+            .ignoreActiveSpan()
             .asChildOf(extractedContext)
             .withTag("span.origin.type", servlet.getClass().getName())
             .startActive(true);
@@ -47,6 +60,8 @@ public class Servlet2Advice {
     if (scope instanceof TraceScope) {
       ((TraceScope) scope).setAsyncPropagation(true);
     }
+
+    req.setAttribute(SERVLET_SPAN, span);
     return scope;
   }
 
@@ -68,9 +83,18 @@ public class Servlet2Advice {
     }
 
     if (scope != null) {
-      DECORATE.onResponse(scope.span(), response);
+      final Span span = scope.span();
-      DECORATE.onError(scope.span(), throwable);
+      DECORATE.onResponse(span, response);
-      DECORATE.beforeFinish(scope.span());
+      if (throwable != null) {
+        if (response instanceof StatusSavingHttpServletResponseWrapper
+            && ((StatusSavingHttpServletResponseWrapper) response).status
+                == HttpServletResponse.SC_OK) {
+          // exception was thrown but status code wasn't set
+          Tags.HTTP_STATUS.set(span, 500);
+        }
+        DECORATE.onError(span, throwable);
+      }
+      DECORATE.beforeFinish(span);
 
       if (scope instanceof TraceScope) {
         ((TraceScope) scope).setAsyncPropagation(false);

dd-java-agent/instrumentation/servlet-2/src/main/java/datadog/trace/instrumentation/servlet2/Servlet2Decorator.java

@@ -43,13 +43,18 @@ public class Servlet2Decorator
 
   @Override
   protected Integer peerPort(final HttpServletRequest httpServletRequest) {
+    // HttpServletResponse doesn't have accessor for remote port.
     return null;
   }
 
   @Override
   protected Integer status(final ServletResponse httpServletResponse) {
-    // HttpServletResponse doesn't have accessor for status code.
+    if (httpServletResponse instanceof StatusSavingHttpServletResponseWrapper) {
-    return null;
+      return ((StatusSavingHttpServletResponseWrapper) httpServletResponse).status;
+    } else {
+      // HttpServletResponse doesn't have accessor for status code.
+      return null;
+    }
   }
 
   @Override

dd-java-agent/instrumentation/servlet-2/src/main/java/datadog/trace/instrumentation/servlet2/StatusSavingHttpServletResponseWrapper.java

@@ -0,0 +1,37 @@
+package datadog.trace.instrumentation.servlet2;
+
+import java.io.IOException;
+import javax.servlet.http.HttpServletResponse;
+import javax.servlet.http.HttpServletResponseWrapper;
+
+public class StatusSavingHttpServletResponseWrapper extends HttpServletResponseWrapper {
+  public int status = 200;
+
+  public StatusSavingHttpServletResponseWrapper(final HttpServletResponse response) {
+    super(response);
+  }
+
+  @Override
+  public void sendError(final int status) throws IOException {
+    this.status = status;
+    super.sendError(status);
+  }
+
+  @Override
+  public void sendError(final int status, final String message) throws IOException {
+    this.status = status;
+    super.sendError(status, message);
+  }
+
+  @Override
+  public void setStatus(final int status) {
+    this.status = status;
+    super.setStatus(status);
+  }
+
+  @Override
+  public void setStatus(final int status, final String message) {
+    this.status = status;
+    super.setStatus(status, message);
+  }
+}

dd-java-agent/instrumentation/servlet-2/src/test/groovy/JettyServlet2Test.groovy

@@ -1,197 +1,116 @@
-import datadog.trace.agent.test.AgentTestRunner
+import datadog.trace.agent.test.asserts.TraceAssert
-import datadog.trace.agent.test.utils.OkHttpUtils
+import datadog.trace.agent.test.base.HttpServerTest
-import datadog.trace.agent.test.utils.PortUtils
 import datadog.trace.api.DDSpanTypes
-import datadog.trace.api.DDTags
+import datadog.trace.instrumentation.servlet2.Servlet2Decorator
-import okhttp3.Credentials
+import io.opentracing.tag.Tags
-import okhttp3.Interceptor
+import javax.servlet.http.HttpServletRequest
-import okhttp3.OkHttpClient
-import okhttp3.Request
-import okhttp3.Response
-import org.eclipse.jetty.http.HttpHeaders
-import org.eclipse.jetty.http.security.Constraint
-import org.eclipse.jetty.security.ConstraintMapping
-import org.eclipse.jetty.security.ConstraintSecurityHandler
-import org.eclipse.jetty.security.HashLoginService
-import org.eclipse.jetty.security.LoginService
-import org.eclipse.jetty.security.authentication.BasicAuthenticator
 import org.eclipse.jetty.server.Server
+import org.eclipse.jetty.server.handler.ErrorHandler
 import org.eclipse.jetty.servlet.ServletContextHandler
 
-class JettyServlet2Test extends AgentTestRunner {
+import static datadog.trace.agent.test.base.HttpServerTest.ServerEndpoint.AUTH_REQUIRED
+import static datadog.trace.agent.test.base.HttpServerTest.ServerEndpoint.ERROR
+import static datadog.trace.agent.test.base.HttpServerTest.ServerEndpoint.EXCEPTION
+import static datadog.trace.agent.test.base.HttpServerTest.ServerEndpoint.REDIRECT
+import static datadog.trace.agent.test.base.HttpServerTest.ServerEndpoint.SUCCESS
 
-  OkHttpClient client = OkHttpUtils.clientBuilder().addNetworkInterceptor(new Interceptor() {
+class JettyServlet2Test extends HttpServerTest<Servlet2Decorator> {
-    @Override
-    Response intercept(Interceptor.Chain chain) throws IOException {
-      def response = chain.proceed(chain.request())
-      TEST_WRITER.waitForTraces(1)
-      return response
-    }
-  })
-    .build()
 
-  int port
+  private static final CONTEXT = "ctx"
   private Server jettyServer
-  private ServletContextHandler servletContext
 
-  def setup() {
+  @Override
-    port = PortUtils.randomOpenPort()
+  void startServer(int port) {
     jettyServer = new Server(port)
-    servletContext = new ServletContextHandler()
+    jettyServer.connectors.each { it.resolveNames = true } // get localhost instead of 127.0.0.1
-    servletContext.contextPath = "/ctx"
+    ServletContextHandler servletContext = new ServletContextHandler(null, "/$CONTEXT")
+    servletContext.errorHandler = new ErrorHandler() {
+      protected void handleErrorPage(HttpServletRequest request, Writer writer, int code, String message) throws IOException {
+        Throwable th = (Throwable) request.getAttribute("javax.servlet.error.exception")
+        writer.write(th ? th.message : message)
+      }
+    }
 
-    ConstraintSecurityHandler security = setupAuthentication(jettyServer)
+    // FIXME: Add tests for security/authentication.
+//    ConstraintSecurityHandler security = setupAuthentication(jettyServer)
+//    servletContext.setSecurityHandler(security)
 
-    servletContext.setSecurityHandler(security)
+    servletContext.addServlet(TestServlet2.Sync, SUCCESS.path)
-    servletContext.addServlet(TestServlet2.Sync, "/sync")
+    servletContext.addServlet(TestServlet2.Sync, ERROR.path)
-    servletContext.addServlet(TestServlet2.Sync, "/auth/sync")
+    servletContext.addServlet(TestServlet2.Sync, EXCEPTION.path)
+    servletContext.addServlet(TestServlet2.Sync, REDIRECT.path)
+    servletContext.addServlet(TestServlet2.Sync, AUTH_REQUIRED.path)
 
     jettyServer.setHandler(servletContext)
     jettyServer.start()
   }
 
-  def cleanup() {
+  @Override
+  void stopServer() {
     jettyServer.stop()
     jettyServer.destroy()
   }
 
-  def "test #path servlet call (auth: #auth, distributed tracing: #distributedTracing)"() {
+  @Override
-    setup:
+  URI buildAddress() {
-    def requestBuilder = new Request.Builder()
+    return new URI("http://localhost:$port/$CONTEXT/")
-      .url("http://localhost:$port/ctx/$path")
-      .get()
-    if (distributedTracing) {
-      requestBuilder.header("x-datadog-trace-id", "123")
-      requestBuilder.header("x-datadog-parent-id", "456")
-    }
-    if (auth) {
-      requestBuilder.header(HttpHeaders.AUTHORIZATION, Credentials.basic("user", "password"))
-    }
-    def response = client.newCall(requestBuilder.build()).execute()
-
-    expect:
-    response.body().string().trim() == expectedResponse
-
-    assertTraces(1) {
-      trace(0, 1) {
-        span(0) {
-          if (distributedTracing) {
-            traceId "123"
-            parentId "456"
-          } else {
-            parent()
-          }
-          serviceName "ctx"
-          operationName "servlet.request"
-          resourceName "GET /ctx/$path"
-          spanType DDSpanTypes.HTTP_SERVER
-          errored false
-          tags {
-            "http.url" "http://localhost:$port/ctx/$path"
-            "http.method" "GET"
-            "span.kind" "server"
-            "component" "java-web-servlet"
-            "peer.hostname" "127.0.0.1"
-            "peer.ipv4" "127.0.0.1"
-            "span.origin.type" "TestServlet2\$Sync"
-            "servlet.context" "/ctx"
-            if (auth) {
-              "$DDTags.USER_NAME" "user"
-            }
-            defaultTags(distributedTracing)
-          }
-        }
-      }
-    }
-
-    where:
-    path        | expectedResponse | auth  | distributedTracing
-    "sync"      | "Hello Sync"     | false | false
-    "auth/sync" | "Hello Sync"     | true  | false
-    "sync"      | "Hello Sync"     | false | true
-    "auth/sync" | "Hello Sync"     | true  | true
   }
 
-  def "test #path error servlet call"() {
+  @Override
-    setup:
+  Servlet2Decorator decorator() {
-    def request = new Request.Builder()
+    return Servlet2Decorator.DECORATE
-      .url("http://localhost:$port/ctx/$path?error=true")
-      .get()
-      .build()
-    def response = client.newCall(request).execute()
-
-    expect:
-    response.body().string().trim() != expectedResponse
-
-    assertTraces(1) {
-      trace(0, 1) {
-        span(0) {
-          serviceName "ctx"
-          operationName "servlet.request"
-          resourceName "GET /ctx/$path"
-          spanType DDSpanTypes.HTTP_SERVER
-          errored true
-          parent()
-          tags {
-            "http.url" "http://localhost:$port/ctx/$path"
-            "http.method" "GET"
-            "span.kind" "server"
-            "component" "java-web-servlet"
-            "peer.hostname" "127.0.0.1"
-            "peer.ipv4" "127.0.0.1"
-            "span.origin.type" "TestServlet2\$Sync"
-            "servlet.context" "/ctx"
-            errorTags(RuntimeException, "some $path error")
-            defaultTags()
-          }
-        }
-      }
-    }
-
-    where:
-    path   | expectedResponse
-    "sync" | "Hello Sync"
   }
 
-  def "test #path non-throwing-error servlet call"() {
+  @Override
-    // This doesn't actually detect the error because we can't get the status code via the old servlet API.
+  String expectedServiceName() {
-    setup:
+    CONTEXT
-    def request = new Request.Builder()
+  }
-      .url("http://localhost:$port/ctx/$path?non-throwing-error=true")
-      .get()
-      .build()
-    def response = client.newCall(request).execute()
 
-    expect:
+  @Override
-    response.body().string().trim() != expectedResponse
+  String expectedOperationName() {
+    return "servlet.request"
+  }
 
-    assertTraces(1) {
+  @Override
-      trace(0, 1) {
+  boolean testNotFound() {
-        span(0) {
+    false
-          serviceName "ctx"
+  }
-          operationName "servlet.request"
+
-          resourceName "GET /ctx/$path"
+  // parent span must be cast otherwise it breaks debugging classloading (junit loads it early)
-          spanType DDSpanTypes.HTTP_SERVER
+  void serverSpan(TraceAssert trace, int index, String traceID = null, String parentID = null, String method = "GET", ServerEndpoint endpoint = SUCCESS) {
-          errored false
+    trace.span(index) {
-          parent()
+      serviceName expectedServiceName()
-          tags {
+      operationName expectedOperationName()
-            "http.url" "http://localhost:$port/ctx/$path"
+      resourceName endpoint.status == 404 ? "404" : "$method ${endpoint.resolve(address).path}"
-            "http.method" "GET"
+      spanType DDSpanTypes.HTTP_SERVER
-            "span.kind" "server"
+      errored endpoint.errored
-            "component" "java-web-servlet"
+      if (parentID != null) {
-            "peer.hostname" "127.0.0.1"
+        traceId traceID
-            "peer.ipv4" "127.0.0.1"
+        parentId parentID
-            "span.origin.type" "TestServlet2\$Sync"
+      } else {
-            "servlet.context" "/ctx"
+        parent()
-            defaultTags()
+      }
-          }
+      tags {
+        "servlet.context" "/$CONTEXT"
+        "span.origin.type" TestServlet2.Sync.name
+
+        defaultTags(true)
+        "$Tags.COMPONENT.key" serverDecorator.component()
+        if (endpoint.errored) {
+          "$Tags.ERROR.key" endpoint.errored
+          "error.msg" { it == null || it == EXCEPTION.body }
+          "error.type" { it == null || it == Exception.name }
+          "error.stack" { it == null || it instanceof String }
         }
+        "$Tags.HTTP_STATUS.key" endpoint.status
+        "$Tags.HTTP_URL.key" "${endpoint.resolve(address)}"
+        "$Tags.PEER_HOSTNAME.key" "localhost"
+        // No peer port
+        "$Tags.PEER_HOST_IPV4.key" "127.0.0.1"
+        "$Tags.HTTP_METHOD.key" method
+        "$Tags.SPAN_KIND.key" Tags.SPAN_KIND_SERVER
       }
     }
-
-    where:
-    path   | expectedResponse
-    "sync" | "Hello Sync"
   }
 
   /**
@@ -204,26 +123,26 @@ class JettyServlet2Test extends AgentTestRunner {
    * @param jettyServer server to attach login service
    * @return SecurityHandler that can be assigned to servlet
    */
-  private ConstraintSecurityHandler setupAuthentication(Server jettyServer) {
+//  private ConstraintSecurityHandler setupAuthentication(Server jettyServer) {
-    ConstraintSecurityHandler security = new ConstraintSecurityHandler()
+//    ConstraintSecurityHandler security = new ConstraintSecurityHandler()
-
+//
-    Constraint constraint = new Constraint()
+//    Constraint constraint = new Constraint()
-    constraint.setName("auth")
+//    constraint.setName("auth")
-    constraint.setAuthenticate(true)
+//    constraint.setAuthenticate(true)
-    constraint.setRoles("role")
+//    constraint.setRoles("role")
-
+//
-    ConstraintMapping mapping = new ConstraintMapping()
+//    ConstraintMapping mapping = new ConstraintMapping()
-    mapping.setPathSpec("/auth/*")
+//    mapping.setPathSpec("/auth/*")
-    mapping.setConstraint(constraint)
+//    mapping.setConstraint(constraint)
-
+//
-    security.setConstraintMappings(mapping)
+//    security.setConstraintMappings(mapping)
-    security.setAuthenticator(new BasicAuthenticator())
+//    security.setAuthenticator(new BasicAuthenticator())
-
+//
-    LoginService loginService = new HashLoginService("TestRealm",
+//    LoginService loginService = new HashLoginService("TestRealm",
-      "src/test/resources/realm.properties")
+//      "src/test/resources/realm.properties")
-    security.setLoginService(loginService)
+//    security.setLoginService(loginService)
-    jettyServer.addBean(loginService)
+//    jettyServer.addBean(loginService)
-
+//
-    security
+//    security
-  }
+//  }
 }

dd-java-agent/instrumentation/servlet-2/src/test/groovy/ServletTestInstrumentation.java

@@ -0,0 +1,28 @@
+import static net.bytebuddy.matcher.ElementMatchers.named;
+
+import com.google.auto.service.AutoService;
+import datadog.trace.agent.test.base.HttpServerTestAdvice;
+import datadog.trace.agent.tooling.Instrumenter;
+import net.bytebuddy.agent.builder.AgentBuilder;
+
+@AutoService(Instrumenter.class)
+public class ServletTestInstrumentation implements Instrumenter {
+
+  @Override
+  public AgentBuilder instrument(final AgentBuilder agentBuilder) {
+    return agentBuilder
+        // Jetty 7.0
+        .type(named("org.eclipse.jetty.server.HttpConnection"))
+        .transform(
+            new AgentBuilder.Transformer.ForAdvice()
+                .advice(
+                    named("handleRequest"), HttpServerTestAdvice.ServerEntryAdvice.class.getName()))
+        // Jetty 7.latest
+        .type(named("org.eclipse.jetty.server.AbstractHttpConnection"))
+        .transform(
+            new AgentBuilder.Transformer.ForAdvice()
+                .advice(
+                    named("headerComplete"),
+                    HttpServerTestAdvice.ServerEntryAdvice.class.getName()));
+  }
+}

dd-java-agent/instrumentation/servlet-2/src/test/groovy/TestServlet2.groovy

@@ -1,21 +1,37 @@
+import datadog.trace.agent.test.base.HttpServerTest
 import groovy.servlet.AbstractHttpServlet
-
 import javax.servlet.http.HttpServletRequest
 import javax.servlet.http.HttpServletResponse
 
+import static datadog.trace.agent.test.base.HttpServerTest.ServerEndpoint.ERROR
+import static datadog.trace.agent.test.base.HttpServerTest.ServerEndpoint.EXCEPTION
+import static datadog.trace.agent.test.base.HttpServerTest.ServerEndpoint.REDIRECT
+import static datadog.trace.agent.test.base.HttpServerTest.ServerEndpoint.SUCCESS
+
 class TestServlet2 {
 
   static class Sync extends AbstractHttpServlet {
     @Override
-    void doGet(HttpServletRequest req, HttpServletResponse resp) {
+    protected void service(HttpServletRequest req, HttpServletResponse resp) {
-      if (req.getParameter("error") != null) {
+      req.getRequestDispatcher()
-        throw new RuntimeException("some sync error")
+      HttpServerTest.ServerEndpoint endpoint = HttpServerTest.ServerEndpoint.forPath(req.servletPath)
+      HttpServerTest.controller(endpoint) {
+        resp.contentType = "text/plain"
+        switch (endpoint) {
+          case SUCCESS:
+            resp.status = endpoint.status
+            resp.writer.print(endpoint.body)
+            break
+          case REDIRECT:
+            resp.sendRedirect(endpoint.body)
+            break
+          case ERROR:
+            resp.sendError(endpoint.status, endpoint.body)
+            break
+          case EXCEPTION:
+            throw new Exception(endpoint.body)
+        }
       }
-      if (req.getParameter("non-throwing-error") != null) {
-        resp.sendError(500, "some sync error")
-        return
-      }
-      resp.writer.print("Hello Sync")
     }
   }
 }

dd-java-agent/instrumentation/servlet-3/src/test/groovy/JettyServlet3Test.groovy

@@ -43,7 +43,7 @@ abstract class JettyServlet3Test extends AbstractServlet3Test<ServletContextHand
     servletContext.errorHandler = new ErrorHandler() {
       protected void handleErrorPage(HttpServletRequest request, Writer writer, int code, String message) throws IOException {
         Throwable th = (Throwable) request.getAttribute("javax.servlet.error.exception")
-        writer.write(th.message)
+        writer.write(th ? th.message : message)
       }
     }
 //    setupAuthentication(jettyServer, servletContext)

dd-java-agent/instrumentation/servlet-3/src/test/groovy/TestServlet3.groovy

@@ -22,13 +22,15 @@ class TestServlet3 {
         resp.contentType = "text/plain"
         switch (endpoint) {
           case SUCCESS:
-          case ERROR:
             resp.status = endpoint.status
             resp.writer.print(endpoint.body)
             break
           case REDIRECT:
             resp.sendRedirect(endpoint.body)
             break
+          case ERROR:
+            resp.sendError(endpoint.status, endpoint.body)
+            break
           case EXCEPTION:
             throw new Exception(endpoint.body)
         }

dd-java-agent/instrumentation/servlet-3/src/test/groovy/TomcatServlet3Test.groovy

@@ -125,7 +125,7 @@ class ErrorHandlerValve extends ErrorReportValve {
       return
     }
     try {
-      response.writer.print(t.cause.message)
+      response.writer.print(t ? t.cause.message : response.message)
     } catch (IOException e) {
       e.printStackTrace()
     }

dd-java-agent/instrumentation/vertx/src/test/groovy/VertxRxServerTest.groovy

@@ -1,157 +0,0 @@
-import datadog.trace.agent.test.AgentTestRunner
-import datadog.trace.agent.test.utils.OkHttpUtils
-import datadog.trace.agent.test.utils.PortUtils
-import datadog.trace.api.DDSpanTypes
-import io.netty.handler.codec.http.HttpResponseStatus
-import io.opentracing.tag.Tags
-import io.vertx.core.Vertx
-import okhttp3.OkHttpClient
-import okhttp3.Request
-import spock.lang.Shared
-
-class VertxRxServerTest extends AgentTestRunner {
-
-  @Shared
-  OkHttpClient client = OkHttpUtils.client()
-
-  @Shared
-  int port
-  @Shared
-  Vertx server
-
-  def setupSpec() {
-    port = PortUtils.randomOpenPort()
-    server = VertxRxWebTestServer.start(port)
-  }
-
-  def cleanupSpec() {
-    server.close()
-  }
-
-  def "test server request/response"() {
-    setup:
-    def request = new Request.Builder()
-      .url("http://localhost:$port/proxy")
-      .header("x-datadog-trace-id", "123")
-      .header("x-datadog-parent-id", "456")
-      .get()
-      .build()
-    def response = client.newCall(request).execute()
-
-    expect:
-    response.code() == 200
-    response.body().string() == "Hello World"
-
-    and:
-    assertTraces(2) {
-      trace(0, 2) {
-        span(0) {
-          serviceName "unnamed-java-app"
-          operationName "netty.request"
-          resourceName "GET /test"
-          childOf(trace(1).get(1))
-          spanType DDSpanTypes.HTTP_SERVER
-          errored false
-          tags {
-            "$Tags.COMPONENT.key" "netty"
-            "$Tags.HTTP_METHOD.key" "GET"
-            "$Tags.HTTP_STATUS.key" 200
-            "$Tags.HTTP_URL.key" "http://localhost:$port/test"
-            "$Tags.PEER_HOSTNAME.key" "localhost"
-            "$Tags.PEER_HOST_IPV4.key" "127.0.0.1"
-            "$Tags.PEER_PORT.key" Integer
-            "$Tags.SPAN_KIND.key" Tags.SPAN_KIND_SERVER
-            defaultTags(true)
-          }
-        }
-        span(1) {
-          childOf span(0)
-          assert span(1).operationName.endsWith('.tracedMethod')
-        }
-      }
-      trace(1, 2) {
-        span(0) {
-          serviceName "unnamed-java-app"
-          operationName "netty.request"
-          resourceName "GET /proxy"
-          traceId "123"
-          parentId "456"
-          spanType DDSpanTypes.HTTP_SERVER
-          errored false
-          tags {
-            "$Tags.COMPONENT.key" "netty"
-            "$Tags.HTTP_METHOD.key" "GET"
-            "$Tags.HTTP_STATUS.key" 200
-            "$Tags.HTTP_URL.key" "http://localhost:$port/proxy"
-            "$Tags.PEER_HOSTNAME.key" "localhost"
-            "$Tags.PEER_HOST_IPV4.key" "127.0.0.1"
-            "$Tags.PEER_PORT.key" Integer
-            "$Tags.SPAN_KIND.key" Tags.SPAN_KIND_SERVER
-            defaultTags(true)
-          }
-        }
-        span(1) {
-          serviceName "unnamed-java-app"
-          operationName "netty.client.request"
-          resourceName "GET /test"
-          childOf(span(0))
-          spanType DDSpanTypes.HTTP_CLIENT
-          errored false
-          tags {
-            "$Tags.COMPONENT.key" "netty-client"
-            "$Tags.HTTP_METHOD.key" "GET"
-            "$Tags.HTTP_STATUS.key" 200
-            "$Tags.HTTP_URL.key" "http://localhost:$port/test"
-            "$Tags.PEER_HOSTNAME.key" "localhost"
-            "$Tags.PEER_HOST_IPV4.key" "127.0.0.1"
-            "$Tags.PEER_PORT.key" Integer
-            "$Tags.SPAN_KIND.key" Tags.SPAN_KIND_CLIENT
-            defaultTags()
-          }
-        }
-      }
-    }
-  }
-
-  def "test #responseCode response handling"() {
-    setup:
-    def request = new Request.Builder().url("http://localhost:$port/$path").get().build()
-    def response = client.newCall(request).execute()
-
-    expect:
-    response.code() == responseCode.code()
-
-    and:
-    assertTraces(1) {
-      trace(0, 1) {
-        span(0) {
-          serviceName "unnamed-java-app"
-          operationName "netty.request"
-          resourceName name
-          spanType DDSpanTypes.HTTP_SERVER
-          errored error
-          tags {
-            "$Tags.COMPONENT.key" "netty"
-            "$Tags.HTTP_METHOD.key" "GET"
-            "$Tags.HTTP_STATUS.key" responseCode.code()
-            "$Tags.HTTP_URL.key" "http://localhost:$port/$path"
-            "$Tags.PEER_HOSTNAME.key" "localhost"
-            "$Tags.PEER_HOST_IPV4.key" "127.0.0.1"
-            "$Tags.PEER_PORT.key" Integer
-            "$Tags.SPAN_KIND.key" Tags.SPAN_KIND_SERVER
-            if (error) {
-              tag("error", true)
-            }
-            defaultTags()
-          }
-        }
-      }
-    }
-
-    where:
-    responseCode                             | name         | path          | error
-    HttpResponseStatus.OK                    | "GET /"      | ""            | false
-    HttpResponseStatus.NOT_FOUND             | "404"        | "doesnt-exit" | false
-    HttpResponseStatus.INTERNAL_SERVER_ERROR | "GET /error" | "error"       | true
-  }
-}

dd-java-agent/instrumentation/vertx/src/test/groovy/VertxServerTest.groovy

@@ -1,157 +0,0 @@
-import datadog.trace.agent.test.AgentTestRunner
-import datadog.trace.agent.test.utils.OkHttpUtils
-import datadog.trace.agent.test.utils.PortUtils
-import datadog.trace.api.DDSpanTypes
-import io.netty.handler.codec.http.HttpResponseStatus
-import io.opentracing.tag.Tags
-import io.vertx.core.Vertx
-import okhttp3.OkHttpClient
-import okhttp3.Request
-import spock.lang.Shared
-
-class VertxServerTest extends AgentTestRunner {
-
-  @Shared
-  OkHttpClient client = OkHttpUtils.client()
-
-  @Shared
-  int port
-  @Shared
-  Vertx server
-
-  def setupSpec() {
-    port = PortUtils.randomOpenPort()
-    server = VertxWebTestServer.start(port)
-  }
-
-  def cleanupSpec() {
-    server.close()
-  }
-
-  def "test server request/response"() {
-    setup:
-    def request = new Request.Builder()
-      .url("http://localhost:$port/proxy")
-      .header("x-datadog-trace-id", "123")
-      .header("x-datadog-parent-id", "456")
-      .get()
-      .build()
-    def response = client.newCall(request).execute()
-
-    expect:
-    response.code() == 200
-    response.body().string() == "Hello World"
-
-    and:
-    assertTraces(2) {
-      trace(0, 2) {
-        span(0) {
-          serviceName "unnamed-java-app"
-          operationName "netty.request"
-          resourceName "GET /test"
-          childOf(trace(1).get(1))
-          spanType DDSpanTypes.HTTP_SERVER
-          errored false
-          tags {
-            "$Tags.COMPONENT.key" "netty"
-            "$Tags.HTTP_METHOD.key" "GET"
-            "$Tags.HTTP_STATUS.key" 200
-            "$Tags.HTTP_URL.key" "http://localhost:$port/test"
-            "$Tags.PEER_HOSTNAME.key" "localhost"
-            "$Tags.PEER_HOST_IPV4.key" "127.0.0.1"
-            "$Tags.PEER_PORT.key" Integer
-            "$Tags.SPAN_KIND.key" Tags.SPAN_KIND_SERVER
-            defaultTags(true)
-          }
-        }
-        span(1) {
-          childOf span(0)
-          assert span(1).operationName.endsWith('.tracedMethod')
-        }
-      }
-      trace(1, 2) {
-        span(0) {
-          serviceName "unnamed-java-app"
-          operationName "netty.request"
-          resourceName "GET /proxy"
-          traceId "123"
-          parentId "456"
-          spanType DDSpanTypes.HTTP_SERVER
-          errored false
-          tags {
-            "$Tags.COMPONENT.key" "netty"
-            "$Tags.HTTP_METHOD.key" "GET"
-            "$Tags.HTTP_STATUS.key" 200
-            "$Tags.HTTP_URL.key" "http://localhost:$port/proxy"
-            "$Tags.PEER_HOSTNAME.key" "localhost"
-            "$Tags.PEER_HOST_IPV4.key" "127.0.0.1"
-            "$Tags.PEER_PORT.key" Integer
-            "$Tags.SPAN_KIND.key" Tags.SPAN_KIND_SERVER
-            defaultTags(true)
-          }
-        }
-        span(1) {
-          serviceName "unnamed-java-app"
-          operationName "netty.client.request"
-          resourceName "GET /test"
-          childOf(span(0))
-          spanType DDSpanTypes.HTTP_CLIENT
-          errored false
-          tags {
-            "$Tags.COMPONENT.key" "netty-client"
-            "$Tags.HTTP_METHOD.key" "GET"
-            "$Tags.HTTP_STATUS.key" 200
-            "$Tags.HTTP_URL.key" "http://localhost:$port/test"
-            "$Tags.PEER_HOSTNAME.key" "localhost"
-            "$Tags.PEER_HOST_IPV4.key" "127.0.0.1"
-            "$Tags.PEER_PORT.key" Integer
-            "$Tags.SPAN_KIND.key" Tags.SPAN_KIND_CLIENT
-            defaultTags()
-          }
-        }
-      }
-    }
-  }
-
-  def "test #responseCode response handling"() {
-    setup:
-    def request = new Request.Builder().url("http://localhost:$port/$path").get().build()
-    def response = client.newCall(request).execute()
-
-    expect:
-    response.code() == responseCode.code()
-
-    and:
-    assertTraces(1) {
-      trace(0, 1) {
-        span(0) {
-          serviceName "unnamed-java-app"
-          operationName "netty.request"
-          resourceName name
-          spanType DDSpanTypes.HTTP_SERVER
-          errored error
-          tags {
-            "$Tags.COMPONENT.key" "netty"
-            "$Tags.HTTP_METHOD.key" "GET"
-            "$Tags.HTTP_STATUS.key" responseCode.code()
-            "$Tags.HTTP_URL.key" "http://localhost:$port/$path"
-            "$Tags.PEER_HOSTNAME.key" "localhost"
-            "$Tags.PEER_HOST_IPV4.key" "127.0.0.1"
-            "$Tags.PEER_PORT.key" Integer
-            "$Tags.SPAN_KIND.key" Tags.SPAN_KIND_SERVER
-            if (error) {
-              tag("error", true)
-            }
-            defaultTags()
-          }
-        }
-      }
-    }
-
-    where:
-    responseCode                             | name         | path          | error
-    HttpResponseStatus.OK                    | "GET /"      | ""            | false
-    HttpResponseStatus.NOT_FOUND             | "404"        | "doesnt-exit" | false
-    HttpResponseStatus.INTERNAL_SERVER_ERROR | "GET /error" | "error"       | true
-  }
-}

dd-java-agent/instrumentation/vertx/src/test/groovy/client/VertxHttpClientTest.groovy

@@ -1,3 +1,5 @@
+package client
+
 import datadog.trace.agent.test.base.HttpClientTest
 import datadog.trace.instrumentation.netty41.client.NettyHttpClientDecorator
 import io.vertx.core.Vertx

dd-java-agent/instrumentation/vertx/src/test/groovy/client/VertxRxCircuitBreakerWebClientTest.groovy

@@ -0,0 +1,74 @@
+package client
+
+import datadog.trace.agent.test.base.HttpClientTest
+import datadog.trace.instrumentation.netty41.client.NettyHttpClientDecorator
+import io.vertx.circuitbreaker.CircuitBreakerOptions
+import io.vertx.core.VertxOptions
+import io.vertx.core.http.HttpMethod
+import io.vertx.ext.web.client.HttpResponse
+import io.vertx.reactivex.circuitbreaker.CircuitBreaker
+import io.vertx.reactivex.core.Future
+import io.vertx.reactivex.core.Vertx
+import io.vertx.reactivex.ext.web.client.WebClient
+import spock.lang.Shared
+import spock.lang.Timeout
+
+import java.util.concurrent.CompletableFuture
+
+@Timeout(10)
+class VertxRxCircuitBreakerWebClientTest extends HttpClientTest<NettyHttpClientDecorator> {
+
+  @Shared
+  Vertx vertx = Vertx.vertx(new VertxOptions())
+  @Shared
+  WebClient client = WebClient.create(vertx)
+  @Shared
+  CircuitBreaker breaker = CircuitBreaker.create("my-circuit-breaker", vertx,
+    new CircuitBreakerOptions()
+      .setTimeout(-1) // Disable the timeout otherwise it makes each test take this long.
+  )
+
+  @Override
+  int doRequest(String method, URI uri, Map<String, String> headers, Closure callback) {
+    def request = client.request(HttpMethod.valueOf(method), uri.port, uri.host, "$uri")
+    headers.each { request.putHeader(it.key, it.value) }
+    Future<HttpResponse> result = breaker.execute { command ->
+      request.rxSend().doOnSuccess {
+        command.complete(it)
+      }.doOnError {
+        command.fail(it)
+      }.subscribe()
+    }
+
+    def future = new CompletableFuture<Integer>()
+    result.setHandler {
+      callback?.call()
+      if (it.succeeded()) {
+        future.complete(it.result().statusCode())
+      } else {
+        future.completeExceptionally(it.cause())
+      }
+    }
+    return future.get()
+  }
+
+  @Override
+  NettyHttpClientDecorator decorator() {
+    return NettyHttpClientDecorator.DECORATE
+  }
+
+  @Override
+  String expectedOperationName() {
+    return "netty.client.request"
+  }
+
+  @Override
+  boolean testRedirects() {
+    false
+  }
+
+  @Override
+  boolean testConnectionFailure() {
+    false
+  }
+}

dd-java-agent/instrumentation/vertx/src/test/groovy/client/VertxRxWebClientTest.groovy

@@ -1,3 +1,5 @@
+package client
+
 import datadog.trace.agent.test.base.HttpClientTest
 import datadog.trace.instrumentation.netty41.client.NettyHttpClientDecorator
 import io.vertx.core.VertxOptions

dd-java-agent/instrumentation/vertx/src/test/groovy/server/NettyServerTestInstrumentation.java

@@ -0,0 +1,22 @@
+package server;
+
+import static net.bytebuddy.matcher.ElementMatchers.named;
+
+import com.google.auto.service.AutoService;
+import datadog.trace.agent.test.base.HttpServerTestAdvice;
+import datadog.trace.agent.tooling.Instrumenter;
+import net.bytebuddy.agent.builder.AgentBuilder;
+
+@AutoService(Instrumenter.class)
+public class NettyServerTestInstrumentation implements Instrumenter {
+
+  @Override
+  public AgentBuilder instrument(final AgentBuilder agentBuilder) {
+    return agentBuilder
+        .type(named("io.netty.handler.codec.ByteToMessageDecoder"))
+        .transform(
+            new AgentBuilder.Transformer.ForAdvice()
+                .advice(
+                    named("channelRead"), HttpServerTestAdvice.ServerEntryAdvice.class.getName()));
+  }
+}

dd-java-agent/instrumentation/vertx/src/test/groovy/server/VertxHttpServerTest.groovy

@@ -0,0 +1,128 @@
+package server
+
+import datadog.trace.agent.test.asserts.ListWriterAssert
+import datadog.trace.agent.test.base.HttpServerTest
+import datadog.trace.instrumentation.netty41.server.NettyHttpServerDecorator
+import groovy.transform.stc.ClosureParams
+import groovy.transform.stc.SimpleType
+import io.vertx.core.AbstractVerticle
+import io.vertx.core.DeploymentOptions
+import io.vertx.core.Future
+import io.vertx.core.Vertx
+import io.vertx.core.VertxOptions
+import io.vertx.core.json.JsonObject
+import io.vertx.ext.web.Router
+import spock.lang.Shared
+
+import java.util.concurrent.CompletableFuture
+
+import static datadog.trace.agent.test.base.HttpServerTest.ServerEndpoint.ERROR
+import static datadog.trace.agent.test.base.HttpServerTest.ServerEndpoint.EXCEPTION
+import static datadog.trace.agent.test.base.HttpServerTest.ServerEndpoint.REDIRECT
+import static datadog.trace.agent.test.base.HttpServerTest.ServerEndpoint.SUCCESS
+
+class VertxHttpServerTest extends HttpServerTest<NettyHttpServerDecorator> {
+  public static final String CONFIG_HTTP_SERVER_PORT = "http.server.port"
+
+  @Shared
+  Vertx server
+
+  @Override
+  void startServer(int port) {
+    server = Vertx.vertx(new VertxOptions()
+    // Useful for debugging:
+    // .setBlockedThreadCheckInterval(Integer.MAX_VALUE)
+      .setClusterPort(port))
+    final CompletableFuture<Void> future = new CompletableFuture<>()
+    server.deployVerticle(verticle().name,
+      new DeploymentOptions()
+        .setConfig(new JsonObject().put(CONFIG_HTTP_SERVER_PORT, port))
+        .setInstances(3)) { res ->
+      if (!res.succeeded()) {
+        throw new RuntimeException("Cannot deploy server Verticle", res.cause())
+      }
+      future.complete(null)
+    }
+
+    future.get()
+  }
+
+  protected Class<io.vertx.reactivex.core.AbstractVerticle> verticle() {
+    return VertxWebTestServer
+  }
+
+  @Override
+  void stopServer() {
+    server.close()
+  }
+
+  @Override
+  NettyHttpServerDecorator decorator() {
+    return NettyHttpServerDecorator.DECORATE
+  }
+
+  @Override
+  String expectedOperationName() {
+    "netty.request"
+  }
+
+  @Override
+  boolean testExceptionBody() {
+    false
+  }
+
+  static class VertxWebTestServer extends AbstractVerticle {
+
+    @Override
+    void start(final Future<Void> startFuture) {
+      final int port = config().getInteger(CONFIG_HTTP_SERVER_PORT)
+      final Router router = Router.router(vertx)
+
+      router.route(SUCCESS.path).handler { ctx ->
+        controller(SUCCESS) {
+          ctx.response().setStatusCode(SUCCESS.status).end(SUCCESS.body)
+        }
+      }
+      router.route(REDIRECT.path).handler { ctx ->
+        controller(REDIRECT) {
+          ctx.response().setStatusCode(REDIRECT.status).putHeader("location", REDIRECT.body)
+        }
+      }
+      router.route(ERROR.path).handler { ctx ->
+        controller(ERROR) {
+          ctx.response().setStatusCode(ERROR.status).end(ERROR.body)
+        }
+      }
+      router.route(EXCEPTION.path).handler { ctx ->
+        controller(EXCEPTION) {
+          throw new Exception(EXCEPTION.body)
+        }
+      }
+
+      vertx.createHttpServer()
+        .requestHandler { router.accept(it) }
+        .listen(port) { startFuture.complete() }
+    }
+  }
+
+  void cleanAndAssertTraces(
+    final int size,
+    @ClosureParams(value = SimpleType, options = "datadog.trace.agent.test.asserts.ListWriterAssert")
+    @DelegatesTo(value = ListWriterAssert, strategy = Closure.DELEGATE_FIRST)
+    final Closure spec) {
+    // If this is failing, make sure HttpServerTestAdvice is applied correctly.
+    TEST_WRITER.waitForTraces(size * 2)
+
+    // Netty closes the parent span before the controller returns, so we need to manually reorder it.
+    TEST_WRITER.each {
+      def controllerSpan = it.find {
+        it.operationName == "controller"
+      }
+      if (controllerSpan) {
+        it.remove(controllerSpan)
+        it.add(controllerSpan)
+      }
+    }
+    super.cleanAndAssertTraces(size, spec)
+  }
+}

dd-java-agent/instrumentation/vertx/src/test/groovy/server/VertxRxCircuitBreakerHttpServerTest.groovy

@@ -0,0 +1,98 @@
+package server
+
+import datadog.trace.agent.test.base.HttpServerTest
+import io.vertx.circuitbreaker.CircuitBreakerOptions
+import io.vertx.reactivex.circuitbreaker.CircuitBreaker
+import io.vertx.reactivex.core.AbstractVerticle
+import io.vertx.reactivex.ext.web.Router
+
+import static datadog.trace.agent.test.base.HttpServerTest.ServerEndpoint.ERROR
+import static datadog.trace.agent.test.base.HttpServerTest.ServerEndpoint.EXCEPTION
+import static datadog.trace.agent.test.base.HttpServerTest.ServerEndpoint.REDIRECT
+import static datadog.trace.agent.test.base.HttpServerTest.ServerEndpoint.SUCCESS
+
+class VertxRxCircuitBreakerHttpServerTest extends VertxHttpServerTest {
+
+  @Override
+  protected Class<AbstractVerticle> verticle() {
+    return VertxRxCircuitBreakerWebTestServer
+  }
+
+  static class VertxRxCircuitBreakerWebTestServer extends AbstractVerticle {
+
+    @Override
+    void start(final io.vertx.core.Future<Void> startFuture) {
+      final int port = config().getInteger(CONFIG_HTTP_SERVER_PORT)
+      final Router router = Router.router(super.@vertx)
+      final CircuitBreaker breaker =
+        CircuitBreaker.create(
+          "my-circuit-breaker",
+          super.@vertx,
+          new CircuitBreakerOptions()
+            .setTimeout(-1) // Disable the timeout otherwise it makes each test take this long.
+        )
+
+      router.route(SUCCESS.path).handler { ctx ->
+        def result = breaker.execute { future ->
+          future.complete(SUCCESS)
+        }
+        result.setHandler {
+          if (it.failed()) {
+            throw it.cause()
+          }
+          HttpServerTest.ServerEndpoint endpoint = it.result()
+          controller(endpoint) {
+            ctx.response().setStatusCode(endpoint.status).end(endpoint.body)
+          }
+        }
+      }
+      router.route(REDIRECT.path).handler { ctx ->
+        def result = breaker.execute { future ->
+          future.complete(REDIRECT)
+        }
+        result.setHandler {
+          if (it.failed()) {
+            throw it.cause()
+          }
+          HttpServerTest.ServerEndpoint endpoint = it.result()
+          controller(endpoint) {
+            ctx.response().setStatusCode(endpoint.status).putHeader("location", endpoint.body)
+          }
+        }
+      }
+      router.route(ERROR.path).handler { ctx ->
+        def result = breaker.execute { future ->
+          future.complete(ERROR)
+        }
+        result.setHandler {
+          if (it.failed()) {
+            throw it.cause()
+          }
+          HttpServerTest.ServerEndpoint endpoint = it.result()
+          controller(endpoint) {
+            ctx.response().setStatusCode(endpoint.status).end(endpoint.body)
+          }
+        }
+      }
+      router.route(EXCEPTION.path).handler { ctx ->
+        def result = breaker.execute { future ->
+          future.fail(new Exception(EXCEPTION.body))
+        }
+        result.setHandler {
+          try {
+            def cause = it.cause()
+            controller(EXCEPTION) {
+              throw cause
+            }
+          } catch (Exception ex) {
+            ctx.response().setStatusCode(EXCEPTION.status).end(ex.message)
+          }
+        }
+      }
+
+      super.@vertx.createHttpServer()
+        .requestHandler { router.accept(it) }
+        .listen(port) { startFuture.complete() }
+    }
+  }
+}

dd-java-agent/instrumentation/vertx/src/test/groovy/server/VertxRxHttpServerTest.groovy

@@ -0,0 +1,53 @@
+package server
+
+
+import io.vertx.core.Future
+import io.vertx.reactivex.core.AbstractVerticle
+import io.vertx.reactivex.ext.web.Router
+
+import static datadog.trace.agent.test.base.HttpServerTest.ServerEndpoint.ERROR
+import static datadog.trace.agent.test.base.HttpServerTest.ServerEndpoint.EXCEPTION
+import static datadog.trace.agent.test.base.HttpServerTest.ServerEndpoint.REDIRECT
+import static datadog.trace.agent.test.base.HttpServerTest.ServerEndpoint.SUCCESS
+
+class VertxRxHttpServerTest extends VertxHttpServerTest {
+
+  @Override
+  protected Class<AbstractVerticle> verticle() {
+    return VertxRxWebTestServer
+  }
+
+  static class VertxRxWebTestServer extends AbstractVerticle {
+
+    @Override
+    void start(final Future<Void> startFuture) {
+      final int port = config().getInteger(CONFIG_HTTP_SERVER_PORT)
+      final Router router = Router.router(super.@vertx)
+
+      router.route(SUCCESS.path).handler { ctx ->
+        controller(SUCCESS) {
+          ctx.response().setStatusCode(SUCCESS.status).end(SUCCESS.body)
+        }
+      }
+      router.route(REDIRECT.path).handler { ctx ->
+        controller(REDIRECT) {
+          ctx.response().setStatusCode(REDIRECT.status).putHeader("location", REDIRECT.body)
+        }
+      }
+      router.route(ERROR.path).handler { ctx ->
+        controller(ERROR) {
+          ctx.response().setStatusCode(ERROR.status).end(ERROR.body)
+        }
+      }
+      router.route(EXCEPTION.path).handler { ctx ->
+        controller(EXCEPTION) {
+          throw new Exception(EXCEPTION.body)
+        }
+      }
+
+      super.@vertx.createHttpServer()
+        .requestHandler { router.accept(it) }
+        .listen(port) { startFuture.complete() }
+    }
+  }
+}

dd-java-agent/instrumentation/vertx/src/test/java/VertxRxWebTestServer.java

@@ -1,116 +0,0 @@
-import datadog.trace.api.Trace;
-import io.vertx.circuitbreaker.CircuitBreakerOptions;
-import io.vertx.core.DeploymentOptions;
-import io.vertx.core.Future;
-import io.vertx.core.Vertx;
-import io.vertx.core.VertxOptions;
-import io.vertx.core.json.JsonObject;
-import io.vertx.reactivex.circuitbreaker.CircuitBreaker;
-import io.vertx.reactivex.core.AbstractVerticle;
-import io.vertx.reactivex.core.buffer.Buffer;
-import io.vertx.reactivex.ext.web.Router;
-import io.vertx.reactivex.ext.web.RoutingContext;
-import io.vertx.reactivex.ext.web.client.WebClient;
-import java.util.Optional;
-import java.util.concurrent.CompletableFuture;
-import java.util.concurrent.ExecutionException;
-
-public class VertxRxWebTestServer extends AbstractVerticle {
-  public static final String CONFIG_HTTP_SERVER_PORT = "http.server.port";
-
-  public static Vertx start(final int port) throws ExecutionException, InterruptedException {
-    /* This is highly against Vertx ideas, but our tests are synchronous
-    so we have to make sure server is up and running */
-    final CompletableFuture<Void> future = new CompletableFuture<>();
-
-    final Vertx vertx = Vertx.vertx(new VertxOptions().setClusterPort(port));
-
-    vertx.deployVerticle(
-        VertxRxWebTestServer.class.getName(),
-        new DeploymentOptions()
-            .setConfig(new JsonObject().put(CONFIG_HTTP_SERVER_PORT, port))
-            .setInstances(3),
-        res -> {
-          if (!res.succeeded()) {
-            throw new RuntimeException("Cannot deploy server Verticle", res.cause());
-          }
-          future.complete(null);
-        });
-
-    future.get();
-
-    return vertx;
-  }
-
-  @Override
-  public void start(final Future<Void> startFuture) {
-    //    final io.vertx.reactivex.core.Vertx vertx = new io.vertx.reactivex.core.Vertx(this.vertx);
-    final WebClient client = WebClient.create(vertx);
-
-    final int port = config().getInteger(CONFIG_HTTP_SERVER_PORT);
-
-    final Router router = Router.router(vertx);
-    final CircuitBreaker breaker =
-        CircuitBreaker.create(
-            "my-circuit-breaker",
-            vertx,
-            new CircuitBreakerOptions()
-                .setMaxFailures(5) // number of failure before opening the circuit
-                .setTimeout(2000) // consider a failure if the operation does not succeed in time
-                //        .setFallbackOnFailure(true) // do we call the fallback on failure
-                .setResetTimeout(10000) // time spent in open state before attempting to re-try
-            );
-
-    router
-        .route("/")
-        .handler(
-            routingContext -> {
-              routingContext.response().putHeader("content-type", "text/html").end("Hello World");
-            });
-    router
-        .route("/error")
-        .handler(
-            routingContext -> {
-              routingContext.response().setStatusCode(500).end();
-            });
-    router
-        .route("/proxy")
-        .handler(
-            routingContext -> {
-              breaker.execute(
-                  ctx -> {
-                    client
-                        .get(port, "localhost", "/test")
-                        .rxSendBuffer(
-                            Optional.ofNullable(routingContext.getBody()).orElse(Buffer.buffer()))
-                        .subscribe(
-                            response -> {
-                              routingContext
-                                  .response()
-                                  .setStatusCode(response.statusCode())
-                                  .end(response.body());
-                            });
-                  });
-            });
-    router
-        .route("/test")
-        .handler(
-            routingContext -> {
-              tracedMethod();
-              routingContext.next();
-            })
-        .blockingHandler(RoutingContext::next)
-        .handler(
-            routingContext -> {
-              routingContext.response().putHeader("content-type", "text/html").end("Hello World");
-            });
-
-    vertx
-        .createHttpServer()
-        .requestHandler(router::accept)
-        .listen(port, h -> startFuture.complete());
-  }
-
-  @Trace
-  private void tracedMethod() {}
-}

dd-java-agent/instrumentation/vertx/src/test/java/VertxWebTestServer.java

@@ -1,107 +0,0 @@
-import static datadog.trace.agent.test.AgentTestRunner.blockUntilChildSpansFinished;
-
-import datadog.trace.api.Trace;
-import io.vertx.core.AbstractVerticle;
-import io.vertx.core.DeploymentOptions;
-import io.vertx.core.Future;
-import io.vertx.core.Vertx;
-import io.vertx.core.VertxOptions;
-import io.vertx.core.buffer.Buffer;
-import io.vertx.core.http.HttpClient;
-import io.vertx.core.json.JsonObject;
-import io.vertx.ext.web.Router;
-import io.vertx.ext.web.RoutingContext;
-import java.util.Optional;
-import java.util.concurrent.CompletableFuture;
-import java.util.concurrent.ExecutionException;
-
-public class VertxWebTestServer extends AbstractVerticle {
-  public static final String CONFIG_HTTP_SERVER_PORT = "http.server.port";
-
-  public static Vertx start(final int port) throws ExecutionException, InterruptedException {
-    /* This is highly against Vertx ideas, but our tests are synchronous
-    so we have to make sure server is up and running */
-    final CompletableFuture<Void> future = new CompletableFuture<>();
-
-    final Vertx vertx = Vertx.vertx(new VertxOptions().setClusterPort(port));
-
-    vertx.deployVerticle(
-        VertxWebTestServer.class.getName(),
-        new DeploymentOptions()
-            .setConfig(new JsonObject().put(CONFIG_HTTP_SERVER_PORT, port))
-            .setInstances(3),
-        res -> {
-          if (!res.succeeded()) {
-            throw new RuntimeException("Cannot deploy server Verticle", res.cause());
-          }
-          future.complete(null);
-        });
-
-    future.get();
-
-    return vertx;
-  }
-
-  @Override
-  public void start(final Future<Void> startFuture) {
-    final HttpClient client = vertx.createHttpClient();
-
-    final int port = config().getInteger(CONFIG_HTTP_SERVER_PORT);
-
-    final Router router = Router.router(vertx);
-
-    router
-        .route("/")
-        .handler(
-            routingContext -> {
-              routingContext.response().putHeader("content-type", "text/html").end("Hello World");
-            });
-    router
-        .route("/error")
-        .handler(
-            routingContext -> {
-              routingContext.response().setStatusCode(500).end();
-            });
-    router
-        .route("/proxy")
-        .handler(
-            routingContext -> {
-              client
-                  .get(
-                      port,
-                      "localhost",
-                      "/test",
-                      response -> {
-                        response.bodyHandler(
-                            buffer -> {
-                              routingContext
-                                  .response()
-                                  .setStatusCode(response.statusCode())
-                                  .end(buffer);
-                            });
-                        blockUntilChildSpansFinished(1);
-                      })
-                  .end(Optional.ofNullable(routingContext.getBody()).orElse(Buffer.buffer()));
-            });
-    router
-        .route("/test")
-        .handler(
-            routingContext -> {
-              tracedMethod();
-              routingContext.next();
-            })
-        .blockingHandler(RoutingContext::next)
-        .handler(
-            routingContext -> {
-              routingContext.response().putHeader("content-type", "text/html").end("Hello World");
-            });
-
-    vertx
-        .createHttpServer()
-        .requestHandler(router::accept)
-        .listen(port, h -> startFuture.complete());
-  }
-
-  @Trace
-  private void tracedMethod() {}
-}

dd-java-agent/instrumentation/vertx/vertx.gradle

@@ -5,21 +5,6 @@ ext {
 
 apply from: "${rootDir}/gradle/java.gradle"
 
-muzzle {
-  pass {
-    group = "io.vertx"
-    module = "vertx-web"
-    versions = "[4.1.0.Final,)"
-    assertInverse = true
-  }
-  pass {
-    group = "io.netty"
-    module = "netty"
-    versions = "[4.1.0.Final,)"
-    assertInverse = true
-  }
-}
-
 apply plugin: 'org.unbroken-dome.test-sets'
 
 testSets {

dd-java-agent/testing/src/main/groovy/datadog/trace/agent/test/base/HttpServerTest.groovy

@@ -48,12 +48,14 @@ abstract class HttpServerTest<DECORATOR extends HttpServerDecorator> extends Age
 
   def setupSpec() {
     startServer(port)
+    println "Http server started at: http://localhost:$port/"
   }
 
   abstract void startServer(int port)
 
   def cleanupSpec() {
     stopServer()
+    println "Http server stopped at: http://localhost:$port/"
   }
 
   abstract void stopServer()
@@ -70,11 +72,15 @@ abstract class HttpServerTest<DECORATOR extends HttpServerDecorator> extends Age
     true
   }
 
+  boolean testExceptionBody() {
+    true
+  }
+
   enum ServerEndpoint {
     SUCCESS("success", 200, "success"),
+    REDIRECT("redirect", 302, null),
     ERROR("error", 500, "controller error"),
     EXCEPTION("exception", 500, "controller exception"),
-    REDIRECT("redirect", 302, null),
     NOT_FOUND("notFound", 404, "not found"),
     AUTH_REQUIRED("authRequired", 200, null),
 
@@ -94,6 +100,10 @@ abstract class HttpServerTest<DECORATOR extends HttpServerDecorator> extends Age
       return "/$path"
     }
 
+    String rawPath() {
+      return path
+    }
+
     URI resolve(URI address) {
       return address.resolve(path)
     }
@@ -113,10 +123,9 @@ abstract class HttpServerTest<DECORATOR extends HttpServerDecorator> extends Age
 
   static <T> T controller(ServerEndpoint endpoint, Closure<T> closure) {
     if (endpoint == NOT_FOUND) {
-      closure()
+      return closure()
-    } else {
-      runUnderTrace("controller", closure)
     }
+    return runUnderTrace("controller", closure)
   }
 
   def "test success with #count requests"() {
@@ -204,7 +213,9 @@ abstract class HttpServerTest<DECORATOR extends HttpServerDecorator> extends Age
 
     expect:
     response.code() == EXCEPTION.status
-    response.body().string() == EXCEPTION.body
+    if (testExceptionBody()) {
+      assert response.body().string() == EXCEPTION.body
+    }
 
     and:
     cleanAndAssertTraces(1) {

dd-java-agent/testing/src/main/groovy/datadog/trace/agent/test/base/HttpServerTestAdvice.java

@@ -1,6 +1,7 @@
 package datadog.trace.agent.test.base;
 
 import datadog.trace.api.DDTags;
+import datadog.trace.context.TraceScope;
 import io.opentracing.Scope;
 import io.opentracing.Tracer;
 import io.opentracing.noop.NoopScopeManager;
@@ -24,10 +25,13 @@ public abstract class HttpServerTestAdvice {
       if (tracer.activeSpan() != null) {
         return NoopScopeManager.NoopScope.INSTANCE;
       } else {
-        return tracer
+        final Scope scope =
-            .buildSpan("TEST_SPAN")
+            tracer
-            .withTag(DDTags.RESOURCE_NAME, "ServerEntry")
+                .buildSpan("TEST_SPAN")
-            .startActive(true);
+                .withTag(DDTags.RESOURCE_NAME, "ServerEntry")
+                .startActive(true);
+        ((TraceScope) scope).setAsyncPropagation(true);
+        return scope;
       }
     }