revert a change sent in another pr

Author: devhl-labs

modules/openapi-generator/src/test/java/org/openapitools/codegen/DefaultCodegenTest.java

@@ -752,8 +752,8 @@ public Boolean call() throws Exception {
             });
 
             assertFalse(call1.get());
-            // assertTrue(call2.get());
-            // assertTrue(call3.get());
+            assertTrue(call2.get());
+            assertTrue(call3.get());
         } finally {
             executor.shutdown();
         }