Question

我正面临图书馆打ack的问题。当我将Android Studio升级到4.1，将Gradle升级到6.5时，出现如下异常：

  Caused by: java.lang.AssertionError
    at org.jivesoftware.smack.AbstractXMPPConnection.sendStanza(AbstractXMPPConnection.java:686)
    at com.app.modules.rnxmpp.service.XmppServiceSmackImpl.sendStanza(XmppServiceSmackImpl.java:713)
    at com.app.modules.rnxmpp.RNXMPPModule.sendStanza(RNXMPPModule.java:189)

在4.1和Gradle 6.0.1之前，代码没有错误，也没有崩溃。这仅在我更新Studio和Gradle时发生。

错误是由smack库中的代码引起的

//org.jivesoftware.smack.AbstractXMPPConnection
     @Override
    public void sendStanza(Stanza stanza) throws NotConnectedException, InterruptedException {
        Objects.requireNonNull(stanza, "Stanza must not be null");
        assert (stanza instanceof Message || stanza instanceof Presence || stanza instanceof IQ);

        throwNotConnectedExceptionIfAppropriate();
        switch (fromMode) {
        case OMITTED:
            stanza.setFrom((Jid) null);
            break;
        case USER:
            stanza.setFrom(getUser());
            break;
        case UNCHANGED:
        default:
            break;
        }
        // Invoke interceptors for the new stanza that is about to be sent. Interceptors may modify
        // the content of the stanza.
        firePacketInterceptors(stanza);
        sendStanzaInternal(stanza);
    }

库文件AbstractXMPPConnection中有一个断言调用

当我调用此函数时，我崩溃了，上面的堆栈跟踪记录显示在日志中。有人知道这里会发生什么吗？ Android Studio版本：4.1 gradle https://services.gradle.org/distributions/gradle-6.5-bin.zip // smack库

 implementation "org.igniterealtime.smack:smack-android-extensions:4.3.0"
implementation "org.igniterealtime.smack:smack-tcp:4.3.0"
implementation "org.igniterealtime.smack:smack-extensions:4.3.0"
implementation 'org.igniterealtime.smack:smack-sasl-provided:4.1.9'

Answer 1

我有同样的问题。我正在使用MultipleRecipientManager

问题是我没有DomainBareJid，并且调用了sendToIndividualRecipients（...）方法。

 public static void send(XMPPConnection connection, Stanza packet, Collection<? extends Jid> to, Collection<? extends Jid> cc, Collection<? extends Jid> bcc,
        Jid replyTo, Jid replyRoom, boolean noReply) throws NoResponseException, XMPPErrorException, FeatureNotSupportedException, NotConnectedException, InterruptedException {
    // Check if *only* 'to' is set and contains just *one* entry, in this case extended stanzas addressing is not
    // required at all and we can send it just as normal stanza without needing to add the extension element
    if (to != null && to.size() == 1 && (cc == null || cc.isEmpty()) && (bcc == null || bcc.isEmpty()) && !noReply
                    && StringUtils.isNullOrEmpty(replyTo) && StringUtils.isNullOrEmpty(replyRoom)) {
        Jid toJid = to.iterator().next();
        packet.setTo(toJid);
        connection.sendStanza(packet);
        return;
    }
    DomainBareJid serviceAddress = getMultipleRecipientServiceAddress(connection);
    if (serviceAddress != null) {
        // Send packet to target users using multiple recipient service provided by the server
        sendThroughService(connection, packet, to, cc, bcc, replyTo, replyRoom, noReply,
                serviceAddress);
    }
    else {
        // Server does not support XEP-33 so try to send the packet to each recipient
        if (noReply || replyTo != null ||
                replyRoom != null) {
            // Some specified XEP-33 features were requested so throw an exception alerting
            // the user that this features are not available
            throw new FeatureNotSupportedException("Extended Stanza Addressing");
        }
        // Send the packet to each individual recipient
        sendToIndividualRecipients(connection, packet, to, cc, bcc);
    }
}

内部类PacketCopy将作为节发送。

connection.sendStanza(new PacketCopy(packet.toXML(null)));

但是AbstractXMPPConnection断言检查失败。因为PacketCopy不能从消息，状态或IQ扩展。

public void sendStanza(Stanza stanza) throws NotConnectedException, InterruptedException {
    Objects.requireNonNull(stanza, "Stanza must not be null");
    assert (stanza instanceof Message || stanza instanceof Presence || stanza instanceof IQ);

    throwNotConnectedExceptionIfAppropriate();
    switch (fromMode) {
    case OMITTED:
        stanza.setFrom((Jid) null);
        break;
    case USER:
        stanza.setFrom(getUser());
        break;
    case UNCHANGED:
    default:
        break;
    }
    // Invoke interceptors for the new stanza that is about to be sent. Interceptors may modify
    // the content of the stanza.
    firePacketInterceptors(stanza);
    sendStanzaInternal(stanza);
}

我的解决方案：在更新ejabberd docker映像之前，我忘记启用了mod_multicast模块。启用mod_multicast模块之后。我有一个DomainBareJid，并且将发送正确的节类型（在我的情况下为Message）。

更新到Android Studio 4.1时出现java.lang.AssertionError

1 个答案: