fix test

testsuite/integration-tests/src/test/java/org/jboss/resteasy/test/response/resource/CompletionStageResponseResource.java

@@ -123,7 +123,7 @@ public CompletionStage<String> exceptionDelay(@Context HttpRequest req) {
             new Runnable() {
                public void run() {
                   try {
-                     Thread.sleep(3000L); // make sure that response will be created after end-point method ends
+                     Thread.sleep(1500L); // make sure that response will be created after end-point method ends
                   } catch (InterruptedException e) {
                      throw new RuntimeException(e);
                   }