Fix structured concurrency test on jdk 25 (#13936)

Author: laurit

instrumentation/executors/javaagent/src/main/java/io/opentelemetry/javaagent/instrumentation/executors/StructuredTaskScopeInstrumentation.java

@@ -6,6 +6,7 @@
 package io.opentelemetry.javaagent.instrumentation.executors;
 
 import static net.bytebuddy.matcher.ElementMatchers.named;
+import static net.bytebuddy.matcher.ElementMatchers.namedOneOf;
 import static net.bytebuddy.matcher.ElementMatchers.takesArgument;
 
 import io.opentelemetry.context.Context;
@@ -24,7 +25,10 @@ public class StructuredTaskScopeInstrumentation implements TypeInstrumentation {
 
   @Override
   public ElementMatcher<TypeDescription> typeMatcher() {
-    return named("java.util.concurrent.StructuredTaskScope");
+    return namedOneOf(
+        "java.util.concurrent.StructuredTaskScope",
+        // since jdk 25-ea+24
+        "java.util.concurrent.StructuredTaskScopeImpl");
   }
 
   @Override

instrumentation/executors/jdk21-testing/src/test/java/io/opentelemetry/javaagent/instrumentation/executors/StructuredTaskScopeTest.java

@@ -21,9 +21,24 @@ class StructuredTaskScopeTest {
   @RegisterExtension
   static final InstrumentationExtension testing = AgentInstrumentationExtension.create();
 
+  @SuppressWarnings({
+    "unchecked",
+    "rawtypes"
+  }) // type arguments for StructuredTaskScope change between jdk 21 and 25
   @Test
   void multipleForkJoin() throws Exception {
-    StructuredTaskScope<Object> taskScope = new StructuredTaskScope.ShutdownOnFailure();
+    StructuredTaskScope tmp;
+    try {
+      // since jdk 25-ea+24
+      tmp = (StructuredTaskScope) StructuredTaskScope.class.getMethod("open").invoke(null);
+    } catch (NoSuchMethodException exception) {
+      tmp =
+          Class.forName("java.util.concurrent.StructuredTaskScope$ShutdownOnFailure")
+              .asSubclass(StructuredTaskScope.class)
+              .getConstructor()
+              .newInstance();
+    }
+    StructuredTaskScope taskScope = tmp;
 
     Callable<String> callable1 =
         () -> {