type FlagSet struct {
}

func (f *FlagSet) failf(format string, a ...interface{}) {
	f.usage()
}

func (f *FlagSet) usage() {
	if f == commandLine {
		panic(3)
	}
}

func NewFlagSet() *FlagSet {
	f := &FlagSet{}
	f.setErrorHandling(true)
	return f
}

func (f *FlagSet) setErrorHandling(b bool) {
	f.failf("DIE")

	// fs.Visit will correctly visit the flags that have been set.

	failf := func(format string, a ...any) (*flag.Flag, []string, error) {
		return f, args, fmt.Errorf(format, a...)
	}

	if fv, ok := f.Value.(boolFlag); ok && fv.IsBoolFlag() { // special case: doesn't need an arg
		if hasValue {
			if err := fs.Set(name, value); err != nil {
				return failf("invalid boolean value %q for -%s: %v", value, name, err)
			}
		} else {

			w.Header().Set("Content-Type", "application/octet-stream")

			failf := func(s string, args ...any) {
				w.Header().Set("Content-Type", "text/plain; charset=utf-8")
				w.Header().Set("X-Go-Pprof", "1")
				http.Error(w, fmt.Sprintf(s, args...), http.StatusInternalServerError)
			}
			records, err := f(r)
			if err != nil {
				failf("failed to get records: %v", err)
				return
			}

// errParse is returned by Set if a flag's value fails to parse, such as with an invalid integer for Int.
// It then gets wrapped through failf to provide more information.
var errParse = errors.New("parse error")

// errRange is returned by Set if a flag's value is out of range.
// It then gets wrapped through failf to provide more information.
var errRange = errors.New("value out of range")

Laura Kassovic <******@****.***> 1701107622 -0800

                doLast {
                    def fail1 = new TestResolutionProviderException('resolution1')
                    def fail2 = new TestResolutionProviderException('resolution2')
                    throw new org.gradle.internal.exceptions.DefaultMultiCauseException('failure', fail1, fail2)
                }
            }
        """

        when:
        fails 'myTask'

        then:

apiVersion: release-notes/v2
kind: feature
area: extensibility
issue: []
releaseNotes:
  - |

Laura Kassovic <******@****.***> 1701107622 -0800

kidddddddddddddddddddddd <******@****.***> 1673408742 +0800

    Failed tests:
        Test example.MyFailingTest#fail (Task: :secondTest)
        Test example.MyFailingTest#fail2 (Task: :secondTest)
        Test example.MyFailingTest#fail (Task: :test)
        Test example.MyFailingTest#fail2 (Task: :test)"""

        when:
        launchTests { TestLauncher testLauncher ->
            testLauncher.withJvmTestMethods("example.MyFailingTest", "fail")
        }

        then: