return new DefaultCancellationTokenSource();
    }

    public static void close() {
        singletonRegistry.close();
    }

    /**
     * Resets the state of connector services. Meant to be used only for testing!
     */
    public static void reset() {
        singletonRegistry.close();
        singletonRegistry = new ConnectorServiceRegistry();
    }

        when:
        runTask { withSystemProperties('unrelated' : 'value') }

        then:
        hasNoSystemProperty('mySystemProperty')
    }

    def "Calling withSystemProperties(null) resets to default behavior"() {
        when:
        runTask {
            withSystemProperties('unrelated' : 'value')
            withSystemProperties(null)
        }

        then:

	c.initBlock = append(c.initBlock, leftEncode(uint64(len(S)*8))...)
	c.initBlock = append(c.initBlock, S...)
	c.Write(bytepad(c.initBlock, c.rate))
	return &c
}

// Reset resets the hash to initial state.
func (c *cshakeState) Reset() {
	c.state.Reset()
	c.Write(bytepad(c.initBlock, c.rate))
}

// Clone returns copy of a cSHAKE context within its current state.
func (c *cshakeState) Clone() ShakeHash {

		d := make([]byte, s.outputLen, 64)
		klmd(s.function, &a, d, s.buf)
		return append(b, d[:s.outputLen]...)
	default:
		panic("sha3: unknown function")
	}
}

// Reset resets the Hash to its initial state.
func (s *asmState) Reset() {
	for i := range s.a {
		s.a[i] = 0
	}
	s.resetBuf()
	s.state = spongeAbsorbing
}

// Size returns the number of bytes Sum will return.

     * resolution as if they were defined by the endorsing module itself.
     *
     * @since 6.0
     */
    void endorseStrictVersions();

    /**
     * Resets the {@link #isEndorsingStrictVersions()} state of this dependency.
     *
     * @since 6.0
     */
    void doNotEndorseStrictVersions();

    /**

		ready(sweep.g, 0, true)
	}
	unlock(&sweep.lock)
	return false
}

// gcResetMarkState resets global state prior to marking (concurrent
// or STW) and resets the stack scan state of all Gs.
//
// This is safe to do without the world stopped because any Gs created
// during or after this will start out in the reset state.
//
// gcResetMarkState must be called on the system stack because it acquires

type modSumStatus struct {
	used, dirty bool
}

// Reset resets globals in the modfetch package, so previous loads don't affect
// contents of go.sum files.
func Reset() {
	GoSumFile = ""
	WorkspaceGoSumFiles = nil

	// Uses of lookupCache and downloadCache both can call checkModSum,
	// which in turn sets the used bit on goSum.status for modules.
	// Reset them so used can be computed properly.

	if f.pass != nil {
		n = strings.Replace(f.pass.name, " ", "_", -1)
	}
	f.Warnl(f.Entry.Pos, "\t%s\t%s%s\t%s", n, key, value, f.Name)
}

// unCacheLine removes v from f's constant cache "line" for aux,
// resets v.InCache when it is found (and removed),
// and returns whether v was found in that line.
func (f *Func) unCacheLine(v *Value, aux int64) bool {
	vv := f.constants[aux]
	for i, cv := range vv {
		if v == cv {

			continue
		}
		if k == tmpKey {
			// delete the element
			s[i] = s[len(s)-1]
			s = s[:len(s)-1]
			removed = true
			break
		}
	}
	// resets the slices to nil so that we can do DeepEqual in unit tests.
	if len(s) == 0 {
		return nil, removed
	}
	return s, removed
}

// RemovePod subtracts pod information from this NodeInfo.

	resetGlobalConfig()
	// Reset global endpoints.
	resetGlobalEndpoints()
	// Reset global isErasure flag.
	resetGlobalIsErasure()
	// Reset global heal state
	resetGlobalHealState()
	// Reset globalIAMSys to `nil`
	resetGlobalIAMSys()
}

// Configure the server for the test run.
func newTestConfig(bucketLocation string, obj ObjectLayer) (err error) {
	// Initialize server config.