fix null

Author: vandonr

dd-java-agent/instrumentation/vertx/vertx-web/vertx-web-3.4/src/main/java/datadog/trace/instrumentation/vertx_3_4/server/RouteUpdateHelper.java

@@ -24,6 +24,9 @@ public static void updateRouteFromContext(
     Route currentRoute;
     try {
       currentRoute = routingContext.currentRoute();
+      if (currentRoute == null) {
+        return;
+      }
     } catch (final RuntimeException ignored) {
       // Vert.x can call RouteState.matches before currentRoute is set on the context.
       return;

dd-java-agent/instrumentation/vertx/vertx-web/vertx-web-3.4/src/test/java/server/RouteHandlerWrapperTest.java

@@ -102,6 +102,21 @@ void updateRouteIgnoresUnavailableCurrentRouteFallback() {
     verifyNoMoreInteractions(parentSpan, handlerSpan);
   }
 
+  @Test
+  void updateRouteIgnoresNullCurrentRouteFallback() {
+    TestRoutingContext context = new TestRoutingContext("/items/123", "GET");
+    AgentSpan parentSpan = mock(AgentSpan.class);
+    AgentSpan handlerSpan = mock(AgentSpan.class);
+
+    assertDoesNotThrow(
+        () ->
+            RouteUpdateHelper.updateRouteFromMatchedRoute(
+                context.instance(), new Object(), parentSpan, handlerSpan));
+
+    context.verifyUnset("dd." + Tags.HTTP_ROUTE);
+    verifyNoMoreInteractions(parentSpan, handlerSpan);
+  }
+
   private static final class TestRoutingContext implements InvocationHandler {
     private final RoutingContext instance;
     private final HttpServerRequest request;

dd-java-agent/instrumentation/vertx/vertx-web/vertx-web-4.0/src/main/java/datadog/trace/instrumentation/vertx_4_0/server/RouteUpdateHelper.java

@@ -24,6 +24,9 @@ public static void updateRouteFromContext(
     Route currentRoute;
     try {
       currentRoute = routingContext.currentRoute();
+      if (currentRoute == null) {
+        return;
+      }
     } catch (final RuntimeException ignored) {
       // Vert.x can call RouteState.matches before currentRoute is set on the context.
       return;

dd-java-agent/instrumentation/vertx/vertx-web/vertx-web-4.0/src/test/java/server/RouteHandlerWrapperTest.java

@@ -105,6 +105,21 @@ void updateRouteIgnoresUnavailableCurrentRouteFallback() {
     verifyNoMoreInteractions(parentSpan, handlerSpan);
   }
 
+  @Test
+  void updateRouteIgnoresNullCurrentRouteFallback() {
+    TestRoutingContext context = new TestRoutingContext("/items/123", HttpMethod.GET);
+    AgentSpan parentSpan = mock(AgentSpan.class);
+    AgentSpan handlerSpan = mock(AgentSpan.class);
+
+    assertDoesNotThrow(
+        () ->
+            RouteUpdateHelper.updateRouteFromMatchedRoute(
+                context.instance(), new Object(), parentSpan, handlerSpan));
+
+    context.verifyUnset("dd." + Tags.HTTP_ROUTE);
+    verifyNoMoreInteractions(parentSpan, handlerSpan);
+  }
+
   private static final class TestRoutingContext implements InvocationHandler {
     private final RoutingContext instance;
     private final HttpServerRequest request;