Google: Jetty ALPN/NPN没有正确配置

Question

在使用Google列出主题的同时，我的web应用程序运行在tomcat上。

public static List<String> listTopics(GcpCredentials gcCredentials, String project) throws GCPException, IOException
{
    List<String> topics = new ArrayList<>();
    TopicAdminClient client = getTopicClient(gcCredentials);
    ProjectName projectName = ProjectName.create(project);
    ListTopicsPagedResponse response = client.listTopics(projectName);
    for (Topic topic :response.iterateAll())
    {
        topics.add(topic.getNameAsTopicName().getTopic());
    }
    return topics;
}`

例外：

java.lang.IllegalArgumentException: Jetty /NPN没有正确配置。 在io.grpc.netty.GrpcSslContexts.selectApplicationProtocolConfig(GrpcSslContexts.java:174) at io.grpc.netty.GrpcSslContexts.configure(GrpcSslContexts.java:151) at io.grpc.netty.GrpcSslContexts.configure(GrpcSslContexts.java:139) at io.grpc.netty.GrpcSslContexts.forClient(GrpcSslContexts.java:109) at io.grpc.netty.NettyChannelBuilder.createProtocolNegotiatorByType(NettyChannelBuilder.java:335) at io.grpc.netty.NettyChannelBuilder.createProtocolNegotiator(NettyChannelBuilder.java:308)在io.grpc.netty.NettyChannelBuilder$NettyTransportFactory$DynamicNettyTransportParams.getProtocolNegotiator(NettyChannelBuilder.java:499) at io.grpc.netty.NettyChannelBuilder$NettyTransportFactory.newClientTransport(NettyChannelBuilder.java:448) at io.grpc.internal.CallCredentialsApplyingTransportFactory.newClientTransport(CallCredentialsApplyingTransportFactory.java:61) at io.grpc.internal.InternalSubchannel.startNewTransport(InternalSubchannel.java:209) at io.grpc.internal.InternalSubchannel.obtainActiveTransport(InternalSubchannel.java:186) at io.grpc.internal.ManagedChannelImpl$SubchannelImplImpl.obtainActiveTransport(ManagedChannelImpl.java:806)在io.grpc.internal.GrpcUtil.getTransportFromPickResult(GrpcUtil.java:568) at io.grpc.internal.DelayedClientTransport.reprocess(DelayedClientTransport.java:296) at io.grpc.internal.ManagedChannelImpl$LbHelperImpl$5.run(ManagedChannelImpl.java:724) at io.grpc.internal.ChannelExecutor.drain(ChannelExecutor.java:87) at io.grpc.internal.ManagedChannelImpl$LbHelperImpl.runSerialized(ManagedChannelImpl.java:715) at io.grpc.internal.ManagedChannelImpl$NameResolverListenerImpl.onUpdate(ManagedChannelImpl.java:752)在io.grpc.internal.DnsNameResolver$1.run(DnsNameResolver.java:174) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at java.lang.Thread.run(Thread.java:745)

Answer 1

我在Netty版本4.1.15中观察到了这个问题，但在4.1.13.Final中没有。检查您的传递依赖项。即Spring Boot引用Netty。

我在POM中添加了什么，以使它与扳手API版本0.22.0-beta一起工作：

<properties> <v.netty>4.1.13.Final</v.netty> </properties> ... <dependencyManagement> <dependencies> <dependency> <groupId>io.netty</groupId> <artifactId>netty-codec</artifactId> <version>${v.netty}</version> </dependency> <dependency> <groupId>io.netty</groupId> <artifactId>netty-codec-http</artifactId> <version>${v.netty}</version> </dependency> <dependency> <groupId>io.netty</groupId> <artifactId>netty-codec-http2</artifactId> <version>${v.netty}</version> </dependency> <dependency> <groupId>io.netty</groupId> <artifactId>netty-handler</artifactId> <version>${v.netty}</version> </dependency> <dependency> <groupId>io.netty</groupId> <artifactId>netty-common</artifactId> <version>${v.netty}</version> </dependency> <dependency> <groupId>io.netty</groupId> <artifactId>netty-handler-proxy</artifactId> <version>${v.netty}</version> </dependency> <dependency> <groupId>io.netty</groupId> <artifactId>netty-transport</artifactId> <version>${v.netty}</version> </dependency> <dependency> <groupId>io.netty</groupId> <artifactId>netty-resolver</artifactId> <version>${v.netty}</version> </dependency> <dependency> <groupId>io.netty</groupId> <artifactId>netty-codec-socks</artifactId> <version>${v.netty}</version> </dependency> <dependency> <groupId>io.netty</groupId> <artifactId>netty-buffer</artifactId> <version>${v.netty}</version> </dependency> </dependencies> </dependencyManagement>

如果问题仍然存在，或者不是选项，请使用适当的引导路径条目运行JVM，例如：

java -Xbootclasspath/p:/tmp/alpn-boot-8.1.11.v20170118.jar -cp ...

确保将/tmp/alpn-boot-8.1.11.v20170118.jar替换为与JVM版本匹配的alpn jar位置，如下页所示：https://www.eclipse.org/jetty/documentation/9.4.x/alpn-chapter.html

Answer 2

在github上有一个可能的解决方案："配置SSL时出现异常："Jetty /NPN没有正确配置。“

所建议的步骤，引自上述文件：

1)编辑/usr/local/Cellar/tomcat/8.5.3/libexec/bin/catalina.sh catalina.sh

2)在第103行中，添加以下CATALINA_OPTS="-javaagent:/Library/Tomcat/lib/jetty-alpn-agent-2.0.6.jar“

3)重新启动tomcat ../bin/快门.bin./bin/startup.sh