Facing NoSuchMethodError für io.netty.util.AttributeKey.valueOf() -Methode mit grpc und protobuf Hallo Welt Beispiel

Question

Nach dem Ausführen GreetingServerTest.java Tests, die ich weiter unten Fehler bin immer. Ich verwende grpc 1.1.0-SNAPSHOT Bibliotheken und zu versuchen, grundlegendes Helloword Beispiel grpc dort git Repo gegeben zu implementieren. Kann jemand bitte vorschlagen, welche Bibliotheken ich vermisse oder es gibt noch etwas, was ich tun muss.

java.lang.NoSuchMethodError: io.netty.util.AttributeKey.valueOf(Ljava/lang/Class;Ljava/lang/String;)Lio/netty/util/AttributeKey; 
at io.grpc.netty.Utils.<clinit>(Utils.java:87) 
at io.grpc.netty.NettyServer.allocateSharedGroups(NettyServer.java:187) 
at io.grpc.netty.NettyServer.start(NettyServer.java:116) 
at io.grpc.internal.ServerImpl.start(ServerImpl.java:156) 
at io.grpc.internal.ServerImpl.start(ServerImpl.java:83) 
at com.xyz.communication.datacollection.GrpcServerTest.test(GrpcServerTest.java:23) 

pom.xml

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> 
<modelVersion>4.0.0</modelVersion> 
<groupId>org.springframework.samples</groupId> 
<artifactId>InternodeCommunication</artifactId> 
<version>0.0.1-SNAPSHOT</version> 

<properties> 
    <java.version>1.8</java.version> 
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> 
    <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding> 

    <!-- Spring --> 
    <spring-framework.version>4.3.1.RELEASE</spring-framework.version> 

    <!-- Logging --> 
    <logback.version>1.0.13</logback.version> 
    <slf4j.version>1.7.5</slf4j.version> 

    <!-- Kundera JPA --> 
    <kundera-version>3.4</kundera-version> 

    <!-- Hibernate jpa --> 
    <hibernate.version>4.2.1.Final</hibernate.version> 


    <!-- Test --> 
    <junit.version>4.12</junit.version> 
    <grpc.version>1.1.0-SNAPSHOT</grpc.version> 
    <!-- Generic properties --> 
</properties> 

<dependencies> 
    <!-- Spring and Transactions --> 
    <dependency> 
     <groupId>org.springframework</groupId> 
     <artifactId>spring-context</artifactId> 
     <version>${spring-framework.version}</version> 
    </dependency> 

    <!-- Hibernate --> 
    <dependency> 
     <groupId>org.hibernate</groupId> 
     <artifactId>hibernate-entitymanager</artifactId> 
     <version>${hibernate.version}</version> 
    </dependency> 
    <!-- kafka --> 
    <!-- https://mvnrepository.com/artifact/org.apache.kafka/kafka_2.10 --> 
    <dependency> 
     <groupId>org.apache.kafka</groupId> 
     <artifactId>kafka_2.10</artifactId> 
     <version>0.10.0.0</version> 
     <exclusions> 
      <exclusion> 
       <groupId>org.slf4j</groupId> 
       <artifactId>slf4j-log4j12</artifactId> 
      </exclusion> 
      <exclusion> 
       <groupId>log4j</groupId> 
       <artifactId>log4j</artifactId> 
      </exclusion> 
     </exclusions> 

    </dependency> 
    <dependency> 
     <groupId>com.xyz</groupId> 
     <artifactId>Common</artifactId> 
     <version>0.0.1-SNAPSHOT</version> 
    </dependency> 
    <dependency> 
     <groupId>com.google.guava</groupId> 
     <artifactId>guava</artifactId> 
     <version>18.0</version> 
    </dependency> 
    <dependency> 
     <groupId>io.netty</groupId> 
     <artifactId>netty-all</artifactId> 
     <version>4.1.5.Final</version> 
    </dependency> 
    <dependency> 
     <groupId>com.google.protobuf</groupId> 
     <artifactId>protobuf-java</artifactId> 
     <version>3.0.0</version> 
    </dependency> 
    <dependency> 
     <groupId>io.grpc</groupId> 
     <artifactId>grpc-netty</artifactId> 
     <version>${grpc.version}</version> 
    </dependency> 
    <dependency> 
     <groupId>io.grpc</groupId> 
     <artifactId>grpc-protobuf</artifactId> 
     <version>${grpc.version}</version> 
    </dependency> 
    <dependency> 
     <groupId>io.grpc</groupId> 
     <artifactId>grpc-stub</artifactId> 
     <version>${grpc.version}</version> 
    </dependency> 
    <!-- https://mvnrepository.com/artifact/io.grpc/grpc-all --> 
    <!-- https://mvnrepository.com/artifact/io.netty/netty-codec --> 
    <!-- https://mvnrepository.com/artifact/io.netty/netty-all --> 




    <!-- Test Artifacts --> 
    <dependency> 
     <groupId>org.springframework</groupId> 
     <artifactId>spring-test</artifactId> 
     <version>${spring-framework.version}</version> 
     <scope>test</scope> 
    </dependency> 
    <dependency> 
     <groupId>junit</groupId> 
     <artifactId>junit</artifactId> 
     <version>${junit.version}</version> 
    </dependency> 
    <dependency> 
     <groupId>com.xyz</groupId> 
     <artifactId>Common</artifactId> 
     <version>0.0.1-SNAPSHOT</version> 
     <type>test-jar</type> 
     <scope>test</scope> 
    </dependency> 

</dependencies> 
<build> 
    <extensions> 
     <extension> 
      <groupId>kr.motd.maven</groupId> 
      <artifactId>os-maven-plugin</artifactId> 
      <version>1.4.1.Final</version> 
     </extension> 
    </extensions> 
    <plugins> 
     <plugin> 
      <groupId>org.xolstice.maven.plugins</groupId> 
      <artifactId>protobuf-maven-plugin</artifactId> 
      <version>0.5.0</version> 
      <configuration> 
       <!-- The version of protoc must match protobuf-java. If you don't depend 
        on protobuf-java directly, you will be transitively depending on the protobuf-java 
        version that grpc depends on. --> 
       <protocArtifact>com.google.protobuf:protoc:3.0.0:exe:${os.detected.classifier}</protocArtifact> 
       <pluginId>grpc-java</pluginId> 
       <pluginArtifact>io.grpc:protoc-gen-grpc-java:1.1.0-SNAPSHOT:exe:${os.detected.classifier}</pluginArtifact> 
      </configuration> 
      <executions> 
       <execution> 
        <goals> 
         <goal>compile</goal> 
         <goal>compile-custom</goal> 
        </goals> 
       </execution> 
      </executions> 
     </plugin> 
    </plugins> 
</build> 

hello_world.proto Datei

syntax = "proto3"; 
option java_multiple_files = true; 
package com.xyz.communication.example; 
message HelloRequest { 
string name = 1; 
} 
message HelloResponse { 
    string greeting = 1; 
} 
service GreetingService { 
    rpc greeting(HelloRequest) returns (HelloResponse); 
} 

GreetingServerTest.java

@ContextConfiguration("/communication-test-beans.xml") 
@RunWith(SpringJUnit4ClassRunner.class) 
public class GrpcServerTest { 
    @Test 
    public void test() throws IOException, InterruptedException { 
     io.grpc.Server server = ServerBuilder.forPort(8080).addService(new GrpcServerImpl().bindService()).build(); 
     server.start(); 
     server.awaitTermination(); 
    } 
} 

class GrpcServerImpl extends GreetingServiceGrpc.GreetingServiceImplBase { 
    @Override 
    public void greeting(HelloRequest request, StreamObserver<HelloResponse> responseObserver) { 
     HelloResponse response = HelloResponse.newBuilder().setGreeting("Hello " + request.getName()).build(); 
     responseObserver.onNext(response); 
     responseObserver.onCompleted(); 
    } 

    @Override 
    public ServerServiceDefinition bindService() { 
     return super.bindService(); 
    } 
} 

Answer 1

Es könnte mehrere Versionen von Netty jar in Ihnen Klassenpfad während der Laufzeit sein. Verwenden Sie den folgenden Befehl, um den Abhängigkeitsbaum zu überprüfen.

Oder Ihr Container bietet das netty Glas möglicherweise mit der Version von Glas kollidieren Sie Verpackung mit Ihrer Anwendung.

Answer 2

Hier ist, was für mich gearbeitet. Ich musste io.netty und com.google schattieren.

<relocation> 
 
     <pattern>io.netty</pattern> 
 
     <shadedPattern>myshade.io.netty</shadedPattern> 
 
    </relocation> 
 
    <relocation> 
 
     <pattern>com.google</pattern> 
 
     <shadedPattern>myshade.com.google</shadedPattern> 
 
    </relocation>