return oldKey;
      }
    }

    int predecessor = lastInInsertionOrder;
    int keyHash = Hashing.smearedHash(key);
    int keyEntry = findEntryByKey(key, keyHash);
    if (force) {
      if (keyEntry != ABSENT) {
        predecessor = prevInInsertionOrder[keyEntry];
        removeEntryKeyHashKnown(keyEntry, keyHash);
      }
    } else {
      checkArgument(keyEntry == ABSENT, "Key already present: %s", key);

					<defaultUsername>${packaging.fess.user}</defaultUsername>
					<defaultGroupname>${packaging.fess.group}</defaultGroupname>
					<!--
					<keyname>${gpg.key}</keyname>
					<keypath>${gpg.keyring}</keypath>
					<keyPassphrase>
						<passphrase>${gpg.passphrase}</passphrase>
					</keyPassphrase>
					-->
					<mappings>
						<!-- app -->
						<mapping>