Rename x-datadog-sent-timestamp to x-datadog-start-time

Author: nhulston

dd-java-agent/instrumentation/aws-java-eventbridge-2.0/src/main/java/datadog/trace/instrumentation/aws/v2/eventbridge/EventBridgeInterceptor.java

@@ -31,7 +31,7 @@ public class EventBridgeInterceptor implements ExecutionInterceptor {
           .putIfAbsent("DatadogSpan", () -> new ExecutionAttribute<>("DatadogSpan"));
 
   private static final String DATADOG_KEY = "_datadog";
-  private static final String SENT_TIMESTAMP_KEY = "x-datadog-sent-timestamp";
+  private static final String SENT_TIMESTAMP_KEY = "x-datadog-start-time";
   private static final String BUS_NAME_KEY = "x-datadog-bus-name";
 
   @Override

dd-java-agent/instrumentation/aws-java-eventbridge-2.0/src/test/groovy/EventBridgeClientTest.groovy

@@ -170,7 +170,7 @@ class EventBridgeClientTest extends AgentTestRunner {
     assert traceContext["x-datadog-parent-id"] != null
     assert traceContext["x-datadog-parent-id"].toString().isNumber()
     assert traceContext["x-datadog-sampling-priority"] == "1"
-    assert traceContext["x-datadog-sent-timestamp"] != null
+    assert traceContext["x-datadog-start-time"] != null
     assert traceContext["x-datadog-bus-name"] != null
 
     assert messageBody["source"] == "com.example"
@@ -215,7 +215,7 @@ class EventBridgeClientTest extends AgentTestRunner {
     assert traceContext["x-datadog-trace-id"].toString().isNumber()
     assert traceContext["x-datadog-parent-id"].toString().isNumber()
     assert traceContext["x-datadog-sampling-priority"] == "1"
-    assert traceContext["x-datadog-sent-timestamp"] != null
+    assert traceContext["x-datadog-start-time"] != null
     assert traceContext["x-datadog-bus-name"] != null
 
     assert messageBody["source"] == "com.example"
@@ -374,7 +374,7 @@ class EventBridgeClientTest extends AgentTestRunner {
     assert detail["nested"]["nested_again"]["key2"] == 42
     assert detail["array"] == [1, 2, 3]
     assert detail["_datadog"] != null
-    assert detail["_datadog"]["x-datadog-sent-timestamp"] != null
+    assert detail["_datadog"]["x-datadog-start-time"] != null
     assert detail["_datadog"]["x-datadog-bus-name"] != null
   }
 
@@ -454,7 +454,7 @@ class EventBridgeClientTest extends AgentTestRunner {
     assert emptyDetailBody["detail"]["_datadog"] != null  // Datadog context should be injected
     assert emptyDetailBody["detail"]["_datadog"]["x-datadog-trace-id"] != null
     assert emptyDetailBody["detail"]["_datadog"]["x-datadog-parent-id"] != null
-    assert emptyDetailBody["detail"]["_datadog"]["x-datadog-sent-timestamp"] != null
+    assert emptyDetailBody["detail"]["_datadog"]["x-datadog-start-time"] != null
     assert emptyDetailBody["detail"]["_datadog"]["x-datadog-bus-name"] != null
   }