Improved VANISHED handling

app/src/main/java/com/sun/mail/imap/IMAPFolder.java

@@ -3635,6 +3635,22 @@ public class IMAPFolder extends Folder implements UIDFolder, ResponseHandler {
 	    // response
 
 	    // "VANISHED" SP ["(EARLIER)"] SP known-uids
+		ir.readAtomStringList(); // Skip EARLIER
+		String uids = ir.readAtom();
+		UIDSet[] uidset = UIDSet.parseUIDSets(uids);
+		List<Message> msgs = new ArrayList<>();
+		for (long uid : UIDSet.toArray(uidset)) {
+			Message m = uidTable.get(uid);
+			if (m != null && m.getMessageNumber() > 0) {
+				realTotal--;
+				messageCache.expungeMessage(m.getMessageNumber());
+				msgs.add(m);
+			}
+		}
+		if (!msgs.isEmpty() &&
+				doExpungeNotification && hasMessageCountListener)
+			notifyMessageRemovedListeners(true, msgs.toArray(new Message[0]));
+/*
 	    String[] s = ir.readAtomStringList();
 	    if (s == null) {	// no (EARLIER)
 		String uids = ir.readAtom();
@@ -3651,7 +3667,7 @@ public class IMAPFolder extends Folder implements UIDFolder, ResponseHandler {
 		    notifyMessageRemovedListeners(true, msgs);
 		}
 	    } // else if (EARLIER), ignore
-
+*/
 	} else if (ir.keyEquals("FETCH")) {
 	    assert ir instanceof FetchResponse : "!ir instanceof FetchResponse";
 	    Message msg = processFetchResponse((FetchResponse)ir);