/**
     * Use a WeakHashMap here, so the keys (Class objects) can be garbage collected.
     * This approach prevents permgen space overflows due to retention of discarded
     * classloaders.
     */
    private static final Map<Class<?>, WeakReference<ClassMap>> CLASS_MAPS = new WeakHashMap<>();

    static final int EOF = -1;

    static final char PROPERTY_START = '.';

//     If there is no such field, the character data is discarded.
//
//   - If the XML element contains comments, they are accumulated in
//     the first struct field that has tag ",comment".  The struct
//     field may have type []byte or string. If there is no such
//     field, the comments are discarded.
//
//   - If the XML element contains a sub-element whose name matches

	// The handler ignores records whose level is lower.
	// It is called early, before any arguments are processed,
	// to save effort if the log event should be discarded.
	// If called from a Logger method, the first argument is the context
	// passed to that method, or context.Background() if nil was passed
	// or the method does not take a context.

	// - the optional extra bit is shifted away in step 3 below.
	// - the high-order 1 is omitted in "normal" representation;
	// - the low-order 1 will be used during rounding then discarded.
	exp := alen - blen
	var a2, b2 nat
	a2 = a2.set(a)
	b2 = b2.set(b)
	if shift := Msize2 - exp; shift > 0 {
		a2 = a2.shl(a2, uint(shift))
	} else if shift < 0 {
		b2 = b2.shl(b2, uint(-shift))
	}

        if (invalidatedRoot != root) {
            LOGGER.info("Some of the file system contents retained in the virtual file system are on file systems that Gradle doesn't support watching. " +
                "The relevant state was discarded to ensure changes to these locations are properly detected. " +
                "You can override this by explicitly enabling file system watching.");
        }
        return invalidatedRoot;
    }

        given:
        gradle.attachSettings(state1)

        when:
        gradle.attachSettings(state2)

        then:
        1 * state1.close()
    }

    def "closes settings when discarded"() {
        def state = Mock(SettingsState)

        given:
        gradle.attachSettings(state)

        when:
        gradle.resetState()

        then:
        1 * state.close()
    }

// this may not be true in some fonts or if the string contains combining
// characters.
//
// If [DiscardEmptyColumns] is set, empty columns that are terminated
// entirely by vertical (or "soft") tabs are discarded. Columns
// terminated by horizontal (or "hard") tabs are not affected by
// this flag.
//
// If a Writer is configured to filter HTML, HTML tags and entities
// are passed through. The widths of tags and entities are

		}
	}
	return b.buf[b.r : b.r+n], err
}

// Discard skips the next n bytes, returning the number of bytes discarded.
//
// If Discard skips fewer than n bytes, it also returns an error.
// If 0 <= n <= b.Buffered(), Discard is guaranteed to succeed without
// reading from the underlying io.Reader.
func (b *Reader) Discard(n int) (discarded int, err error) {
	if n < 0 {
		return 0, ErrNegativeCount
	}

	if h.store != nil {
		h.storeCtxCancel()
	}

	// Set logch to nil and close it.
	// This will block all Send operations,
	// and finish the existing ones.
	// All future ones will be discarded.
	h.logChMu.Lock()
	xioutil.SafeClose(h.logCh)
	h.logCh = nil
	h.logChMu.Unlock()

	if h.producer != nil {
		h.producer.Close()
		h.client.Close()
	}

	// Wait for messages to be sent...

     * Theoretically, a service could accept the write and then redirect to another page that polls for the success of that write.
     */
    def "non method preserving redirects on write result in discarded write"() {
        given:
        httpBuildCacheServer.cacheDir.createDir("redirect")
        httpBuildCacheServer.addResponder { req, res ->
            if (req.method == "PUT") {