NullPointerException at org.apache.cxf.jaxrs.client.AbstractClient.setupOutInterceptorChain, gdy używam cloudera-manager-api

Question

Dostaję klastry przez cloudera-manager-api.

Używam wtyczki odcień Maven.

Istnieje another question relating to null pointer exceptions, ale to nie rozwiązuje mojego konkretnego problemu. Wygląda na problem zależności, ponieważ jeśli uruchomię aplikację w moim IDE, działa dobrze.

Po uruchomieniu samodzielnie pakowanego słoika nie działa, co może być przyczyną braku zależności?

źródłem jest poniżej

String host = HOST_PREFIX + args[0]; 
    String command = args[1]; 

    RootResourceV10 apiRoot = new ClouderaManagerClientBuilder() 
      .withHost(host).withPort(7180) 
      .withUsernamePassword(ADMIN, ADMIN).build().getRootV10(); 

    if (apiRoot == null) { 
     System.exit(0); 
    } 

    ClustersResourceV10 clusterResource = apiRoot.getClustersResource(); 


    try { 

     if (command.equals(START)) { 

      System.out.println("starting.."); 

      ApiCommand cmd = apiRoot.getClustersResource().startCommand(
        "cluster" 
        ); 
      while (cmd.isActive()) { 
       cmd = apiRoot.getCommandsResource() 
         .readCommand(cmd.getId()); 
      } 
     } else { 
      System.out.println("stopping.."); 

      ApiCommand cmdstop = apiRoot.getClustersResource().stopCommand(
        "cluster" 
        ); 
      while (cmdstop.isActive()) { 
       cmdstop = apiRoot.getCommandsResource().readCommand(
         cmdstop.getId()); 
      } 

     } 
    } catch (NullPointerException e) { 
     e.printStackTrace(); 
    } 

} 

Komunikat o błędzie jest poniżej {

java.lang.NullPointerException 
     at org.apache.cxf.jaxrs.client.AbstractClient.setupOutInterceptorChain(AbstractClient.java:850) 
     at org.apache.cxf.jaxrs.client.AbstractClient.createMessage(AbstractClient.java:900) 
     at org.apache.cxf.jaxrs.client.ClientProxyImpl.doChainedInvocation(ClientProxyImpl.java:522) 
     at org.apache.cxf.jaxrs.client.ClientProxyImpl.invoke(ClientProxyImpl.java:206) 
     at com.sun.proxy.$Proxy23.startCommand(Unknown Source) 
     at com.worksap.company.cloudera.cluster.manage.ClusterManager.main(ClusterManager.java:48) 

pom.xml jest poniżej

<?xml version="1.0" encoding="UTF-8"?> 
<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>jp.co.ltd</groupId> 
    <artifactId>cluster-manager</artifactId> 
    <version>1.0.0-SNAPSHOT</version> 
    <packaging>jar</packaging> 

    <repositories> 
     <repository> 
      <id>cdh.repo</id> 
      <url>https://repository.cloudera.com/artifactory/cloudera-repos</url> 
      <name>Cloudera Repository</name> 
     </repository> 
    </repositories> 

    <properties> 
     <cxf.version>2.7.5</cxf.version> 
     <guava.version>14.0</guava.version> 
     <jackson2.version>2.1.0</jackson2.version> 
     <joda.version>2.1</joda.version> 
     <junit.version>4.11</junit.version> 
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> 
     <test.redirectToFile>true</test.redirectToFile> 
     <privateClassPath>com.cloudera.api.shaded</privateClassPath> 
    </properties> 

    <dependencies> 
     <dependency> 
      <groupId>com.fasterxml.jackson.core</groupId> 
      <artifactId>jackson-databind</artifactId> 
      <version>2.2.0</version> 
     </dependency> 
     <dependency> 
      <groupId>com.cloudera.api</groupId> 
      <artifactId>cloudera-manager-api</artifactId> 
      <version>5.4.0</version> 
     </dependency> 
     <dependency> 
      <groupId>org.apache.cxf</groupId> 
      <artifactId>cxf-rt-transports-http</artifactId> 
      <version>${cxf.version}</version> 
     </dependency> 
     <dependency> 
      <groupId>org.apache.cxf</groupId> 
      <artifactId>cxf-rt-frontend-jaxrs</artifactId> 
      <version>${cxf.version}</version> 
     </dependency> 
     <dependency>  
      <groupId>commons-lang</groupId> 
      <artifactId>commons-lang</artifactId> 
      <version>2.6</version> 
     </dependency> 
     <dependency> 
      <groupId>org.slf4j</groupId> 
      <artifactId>slf4j-api</artifactId> 
      <version>1.7.8</version> 
     </dependency> 
     <dependency> 
      <groupId>log4j</groupId> 
      <artifactId>log4j</artifactId> 
      <version>1.2.17</version> 
     </dependency> 

    </dependencies> 
    <build> 
     <plugins> 
      <plugin> 
       <groupId>org.apache.maven.plugins</groupId> 
       <artifactId>maven-shade-plugin</artifactId> 
       <version>2.1</version> 
       <executions> 
        <execution> 
         <phase>package</phase> 
         <goals> 
          <goal>shade</goal> 
         </goals> 
         <configuration> 
          <minimizeJar>false</minimizeJar> 
          <createDependencyReducedPom>false</createDependencyReducedPom> 
          <transformers> 
           <transformer 
            implementation="org.apache.maven.plugins.shade.resource.AppendingTransformer"> 
            <resource>META-INF/spring.handlers</resource> 
           </transformer> 
           <transformer 
            implementation="org.apache.maven.plugins.shade.resource.AppendingTransformer"> 
            <resource>META-INF/spring.schemas</resource> 
           </transformer> 
           <transformer 
            implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer"> 
            <mainClass>com.worksap.company.sample.spark.batch.SparkSample</mainClass> 
           </transformer> 
          </transformers> 
          <shadedArtifactAttached>true</shadedArtifactAttached> 
          <shadedClassifierName>jar-with-dependencies</shadedClassifierName> 
          <configuration> 
           <filters> 
            <filter> 
             <artifact>*:*</artifact> 
             <excludes> 
              <exclude>META-INF/*.SF</exclude> 
              <exclude>META-INF/*.DSA</exclude> 
              <exclude>META-INF/*.RSA</exclude> 
             </excludes> 
            </filter> 
           </filters> 
           <!-- Additional configuration. --> 
          </configuration> 
         </configuration> 
        </execution> 
       </executions> 
      </plugin> 
      <plugin> 
       <artifactId>maven-assembly-plugin</artifactId> 
       <version>2.5.2</version> 
      </plugin> 
      <plugin> 
       <groupId>org.apache.maven.plugins</groupId> 
       <artifactId>maven-compiler-plugin</artifactId> 
       <version>3.2</version> 
       <configuration> 
        <source>1.6</source> 
        <target>1.6</target> 
        <compilerArguments> 
         <extdirs>lib</extdirs> 
        </compilerArguments> 
       </configuration> 
      </plugin> 
     </plugins> 
    </build> 
</project> 

Answer 1

wpadłem na ten sam problem i znaleźć rozwiązanie to:

https://cwiki.apache.org/confluence/display/CXF20DOC/Bundling+CXF+into+single+jar+with+Maven+shade+plugin

CXF używa plików bus-extensions.txt do łączenia modułów, muszą one być zawarte w słoiku. Dodaj to do sekcji transformatorów:

<transformer implementation="org.apache.maven.plugins.shade.resource.AppendingTransformer"> 
    <resource>META-INF/cxf/bus-extensions.txt</resource> 
</transformer>