Fix invalid SQSHelper usage in AWS async client instrumentation (#3266)

* Fix invalid SQSHelper usage in AWS async client instrumentation

* Fix invalid SQSHelper usage in AWS async client instrumentation

Author: JonasKunz

CHANGELOG.asciidoc

@@ -31,13 +31,15 @@ Use subheadings with the "=====" level for adding notes for unreleased changes:
 
 === Unreleased
 
-[float]
-===== Features
-* Added virtual thread support - {pull}#3239[#3239]
-
 [float]
 ===== Bug fixes
 * Fixed Micrometer histograms to be correctly exported with non-cumulative bucket counts - {pull}3264[#3264]
+* Fixed SQS NoClassDefFoundError in AWS SDK instrumentation for async clients - {pull}3266[#3266]
+
+[float]
+===== Refactorings
+* Replaced thread-local IO buffers with pooled ones for virtual thread friendliness - {pull}#3239[#3239]
+
 
 [[release-notes-1.x]]
 === Java Agent version 1.x

apm-agent-plugins/apm-aws-sdk/apm-aws-sdk-2-plugin/src/main/java/co/elastic/apm/agent/awssdk/v2/BaseAsyncClientHandlerInstrumentation.java

@@ -80,19 +80,23 @@ public static TransformingAsyncResponseHandler<?> enterDoExecute(@Advice.Argumen
             SdkRequest sdkRequest = clientExecutionParams.getInput();
             URI uri = clientConfiguration.option(SdkClientOption.ENDPOINT);
             Span<?> span = null;
+            boolean isSqs = false;
             if ("S3".equalsIgnoreCase(awsService)) {
                 span = S3Helper.getInstance().startSpan(sdkRequest, uri, executionContext);
             } else if ("DynamoDb".equalsIgnoreCase(awsService)) {
                 span = DynamoDbHelper.getInstance().startSpan(sdkRequest, uri, executionContext);
             } else if ("Sqs".equalsIgnoreCase(awsService)) {
+                isSqs = true;
                 span = SQSHelper.getInstance().startSpan(sdkRequest, uri, executionContext);
             }
 
             if (span != null) {
                 span.withSync(false).activate();
             }
             try {
-                SQSHelper.getInstance().modifyRequestObject(tracer.currentContext(), clientExecutionParams, executionContext);
+                if (isSqs) {
+                    SQSHelper.getInstance().modifyRequestObject(tracer.currentContext(), clientExecutionParams, executionContext);
+                }
             } finally {
                 if (span != null) {
                     span.deactivate();