Set thread information on transaction from OpenTelemetry attributes

CHANGELOG.md

@@ -10,6 +10,7 @@
 - Session Replay: Do not capture current replay for cached events from the past ([#4474](https://github.com/getsentry/sentry-java/pull/4474))
 - Session Replay: Correctly capture Dialogs and non full-sized windows ([#4354](https://github.com/getsentry/sentry-java/pull/4354))
 - Session Replay: Fix inconsistent `segment_id` ([#4471](https://github.com/getsentry/sentry-java/pull/4471))
+- Set thread information on transaction from OTEL attributes ([#4478](https://github.com/getsentry/sentry-java/pull/4478))
 
 ## 8.13.2
 

sentry-opentelemetry/sentry-opentelemetry-core/src/main/java/io/sentry/opentelemetry/SentrySpanExporter.java

@@ -12,6 +12,7 @@
 import io.opentelemetry.sdk.trace.export.SpanExporter;
 import io.opentelemetry.semconv.HttpAttributes;
 import io.opentelemetry.semconv.incubating.ProcessIncubatingAttributes;
+import io.opentelemetry.semconv.incubating.ThreadIncubatingAttributes;
 import io.sentry.Baggage;
 import io.sentry.DateUtils;
 import io.sentry.DefaultSpanFactory;
@@ -339,6 +340,7 @@ private void transferSpanDetails(
     setOtelInstrumentationInfo(span, sentryTransaction);
     setOtelSpanKind(span, sentryTransaction);
     transferSpanDetails(sentrySpanMaybe, sentryTransaction);
+    maybeTransferOtelThreadAttributes(span, sentryTransaction);
 
     scopesToUse.configureScope(
         ScopeType.CURRENT,
@@ -347,6 +349,19 @@ private void transferSpanDetails(
     return sentryTransaction;
   }
 
+  private void maybeTransferOtelThreadAttributes(
+      final @NotNull SpanData span, final @NotNull ITransaction sentryTransaction) {
+    final @NotNull Attributes attributes = span.getAttributes();
+    final @Nullable Long threadId = attributes.get(ThreadIncubatingAttributes.THREAD_ID);
+    if (threadId != null) {
+      sentryTransaction.setData(ThreadIncubatingAttributes.THREAD_ID.getKey(), threadId);
+    }
+    final @Nullable String threadName = attributes.get(ThreadIncubatingAttributes.THREAD_NAME);
+    if (threadName != null) {
+      sentryTransaction.setData(ThreadIncubatingAttributes.THREAD_NAME.getKey(), threadName);
+    }
+  }
+
   private List<SpanNode> findCompletedRootNodes(final @NotNull List<SpanNode> grouped) {
     final @NotNull Predicate<SpanNode> isRootPredicate =
         (node) -> {