Throwable intermediateCause = new RuntimeException("Intermediate problem", rootCause);
        GsaConfigException exception = new GsaConfigException("Top level GSA error", intermediateCause);

        assertNotNull(exception);
        assertEquals("Top level GSA error", exception.getMessage());

        // Check first level cause
        assertNotNull(exception.getCause());

     */
    @Nonnull
    Map<String, String> systemProperties();

    /**
     * Returns the top-level directory of the Maven invocation.
     * This is typically the directory containing the POM file being executed.
     *
     * @return the top-level directory path
     */
    @Nonnull
    Path topDirectory();

    /**

Another big feature required by APIs is <abbr title="reading and converting to Python data">parsing</abbr> data from incoming requests.

Webargs is a tool that was made to provide that on top of several frameworks, including Flask.

It uses Marshmallow underneath to do the data validation. And it was created by the same developers.

It's a great tool and I have used it a lot too, before having **FastAPI**.

            isFocusList = false;
            $boxElement.css("display", "none");
            listNum = 0;
          },

          resize: function() {
            $boxElement.css("top", $textArea.offset().top + $textArea.height() + 6);
            $boxElement.css("left", $textArea.offset().left);
            $boxElement.css("height", "auto");
            $boxElement.css("width", "auto");

     * Returns a boolean indicating if the project is the top level project for
     * this reactor build.  The top level project may be different from the
     * {@code rootDirectory}, especially if a subtree of the project is being
     * built, either because Maven has been launched in a subdirectory or using
     * a {@code -f} option.
     *
     * @return {@code true} if the project is the top level project for this build
     */

st pt="dropdown",bt="ArrowUp",vt="ArrowDown",yt="click.bs.dropdown.data-api",wt="keydown.bs.dropdown.data-api",At="show",Et='[data-bs-toggle="dropdown"]:not(.disabled):not(:disabled)',Ct=`${Et}.show`,Tt=".dropdown-menu",kt=p()?"top-end":"top-start",St=p()?"top-start":"top-end",Lt=p()?"bottom-end":"bottom-start",Ot=p()?"bottom-start":"bottom-end",It=p()?"left-start":"right-start",Dt=p()?"right-start":"left-start",Nt={autoClose:!0,boundary:"clippingParents",display:"dynamic",offset:[0,2],popperCon...

				}
			}
		}
	}

	selectFrom := func(idx int) error {
		select {
		case <-ctxDone:
			return ctx.Err()
		case entry, ok := <-in[idx]:
			if !ok {
				top[idx] = nil
				nDone++
			} else {
				top[idx] = &entry
			}
		}
		return nil
	}
	// Populate all...
	for i := range in {
		if err := selectFrom(i); err != nil {
			return err
		}
	}
	last := ""

        Exception middleCause = new IllegalStateException("Middle cause", rootCause);
        DataStoreException exception = new DataStoreException("Top level error", middleCause);

        assertNotNull(exception);
        assertEquals("Top level error", exception.getMessage());
        assertEquals(middleCause, exception.getCause());
        assertEquals(rootCause, exception.getCause().getCause());
    }

        // Test nested exception chain
        Exception rootCause = new IllegalStateException("Root cause");
        Exception middleCause = new RuntimeException("Middle cause", rootCause);
        String message = "Top level error";

        SearchQueryException exception = new SearchQueryException(message, middleCause);

        assertEquals(message, exception.getMessage());
        assertEquals(middleCause, exception.getCause());

- Favour a working external library if appropriate.  There are many examples of OkHttp libraries that can sit on top or hook in via existing APIs.
- Get working code on a personal branch with tests before you submit a PR.
- OkHttp is a small and light dependency.  Don't introduce new dependencies or major new functionality.