Method setFlags

app/src/main/java/com/sun/mail/imap/IMAPFolder.java:1405–1445

Set the specified flags for the given array of messages.

(Message[] msgs, Flags flag, boolean value)

     * Set the specified flags for the given array of messages.
     */
    @Override
    public synchronized void setFlags(Message[] msgs, Flags flag, boolean value)
			throws MessagingException {
	checkOpened();
	checkFlags(flag); // validate flags

	if (msgs.length == 0) // boundary condition
	    return;

	synchronized(messageCacheLock) {
	    try {
		IMAPProtocol p = getProtocol();
		if (p.hasCapability("X-UIDONLY") ||
				(p.hasCapability("UIDPLUS") &&
						Boolean.parseBoolean(System.getProperty("fairemail.uid_command")))) {
			// Verizon
			FetchProfile fp = new FetchProfile();
			fp.add(UIDFolder.FetchProfileItem.UID);
			fetch(msgs, fp);

			UIDSet[] uids = Utility.toUIDSet(msgs);
			if (uids == null)
				return;
			Response[] r = p.command("UID STORE " + UIDSet.toString(uids) +
					" " + (value ? '+' : '-') + "FLAGS " + p.createFlagList(new Flags(flag)), null);
			p.notifyResponseHandlers(r);
			p.handleResult(r[r.length - 1]);
			return;
		}
		MessageSet[] ms = Utility.toMessageSetSorted(msgs, null);
		if (ms == null)
		    throw new MessageRemovedException(
					"Messages have been removed");
		p.storeFlags(ms, flag, value);
	    } catch (ConnectionException cex) {
		throw new FolderClosedException(this, cex.getMessage());
	    } catch (ProtocolException pex) {
		throw new MessagingException(pex.getMessage(), pex);
	    }
	}
    }

    /**
     * Set the specified flags for the given range of message numbers.