comment and sleep

Author: fandreuz

sdk-extensions/autoconfigure/src/test/java/io/opentelemetry/sdk/autoconfigure/AutoConfiguredOpenTelemetrySdkTest.java

@@ -714,6 +714,8 @@ void test() throws Exception {
                           }
                           return null;
                         });
+                // Give Thread 2 some time to try obtaining the mutex and getting blocked
+                Thread.sleep(500);
                 return invocation.callRealMethod();
               });