EmbeddedCassandraServer获得“ java.lang.reflect.InvocationTargetException”

Question

我使用Cassandra-Unit 3.1.3.2进行单元测试。

以下是我的代码段

EmbeddedCassandraServerHelper.startEmbeddedCassandra(EmbeddedCassandraServerHelper.CASSANDRA_RNDPORT_YML_FILE);
    appConfig.setCassandraPort(EmbeddedCassandraServerHelper.getNativeTransportPort());
    appConfig.setCassandraSession(Cluster.builder().addContactPoints(InetAddress.getByName("localhost").getHostAddress())
        .withPort(54567).build().connect());
    CqlSchemaInitializer cqlSchemaInitializer = new CqlSchemaInitializer(Arrays.asList("create_keyspace.cql"));
    cqlSchemaInitializer.initialize(appConfig.getCassandraSession());
    appConfig.setCassandraLodgingCommerceContentDao(new CassandraLodgingCommerceContentDao(appConfig.getCassandraSession()));

appConfig只是具有setter / getter的pojo。 我收到以下错误，

引起原因：sun.reflect.NativeConstructorAccessorImpl.newInstance0（Native方法）处的java.lang.reflect.InvocationTargetException 45）at com.datastax.driver.core.NettyUtil.newEventLoopGroupInstance（NettyUtil.java:134）上的java.lang.reflect.Constructor.newInstance（Constructor.java:408）... 35更多原因：java.lang。否。 。（MultithreadEventExecutorGroup.java:64）在io.netty.channel.MultithreadEventLoopGroup。（MultithreadEventLoopGroup.java:49）在io.netty.channel.epoll.EpollEventLoopGroup。（EpollEventLoopGroup.java:93）在io.netty.channel.epoll .EpollEventL io.netty.channel.epoll.EpollEventLoopGroup。（EpollEventLoopGroup.java:61）上的oopGroup。（EpollEventLoopGroup.java:80）...另外40个

Answer 1

添加以下依赖项后，它得到解决

<dependency>
<groupId>io.netty</groupId>
<artifactId>netty-all</artifactId>
<version>4.0.44.Final</version>