fix spring-webflux cast to PathPattern throws ClassCastException

Signed-off-by: wangzhancheng <[email protected]>
open-telemetry · Oct 13, 2022 · 70e9d51 · 70e9d51
1 parent 7104290
commit 70e9d51
Showing 1 changed file with 8 additions and 2 deletions.
diff --git a/...a/io/opentelemetry/javaagent/instrumentation/spring/webflux/server/WebfluxSingletons.java b/...a/io/opentelemetry/javaagent/instrumentation/spring/webflux/server/WebfluxSingletons.java
@@ -41,9 +41,15 @@ public static Instrumenter<Object, Void> instrumenter() {
 
   public static HttpRouteGetter<ServerWebExchange> httpRouteGetter() {
     return (context, exchange) -> {
-      PathPattern bestPattern =
+      Object bestPatternObj =
           exchange.getAttribute(HandlerMapping.BEST_MATCHING_PATTERN_ATTRIBUTE);
-      return bestPattern == null ? null : bestPattern.getPatternString();
+      if (bestPatternObj == null) {
+        return null;
+      }
+      if (bestPatternObj instanceof PathPattern) {
+        return ((PathPattern) bestPatternObj).getPatternString();
+      }
+      return bestPatternObj.toString();
     };
   }