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就是具有setter / getter的pojo。我得到以下错误，

引起：java.lang.reflect.InvocationTargetException at sun.reflect.NativeConstructorAccessorImpl.newInstance0（本机方法）在 sun.reflect.NativeConstructorAccessorImpl.newInstance（NativeConstructorAccessorImpl.java:62）在 sun.reflect.DelegatingConstructorAccessorImpl.newInstance（DelegatingConstructorAccessorImpl.java:45） at java.lang.reflect.Constructor.newInstance（Constructor.java:408）在 com.datastax.driver.core.NettyUtil.newEventLoopGroupInstance（NettyUtil.java:134） ... 35更多引起：java.lang.NoSuchFieldError： DEFAULT_MAX_PENDING_TASKS at io.netty.channel.epoll.EpollEventLoop。（EpollEventLoop.java:84）在 io.netty.channel.epoll.EpollEventLoopGroup.newChild（EpollEventLoopGroup.java:114）在 io.netty.util.concurrent.MultithreadEventExecutorGroup。（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.EpollEventLoopGroup。（EpollEventLoopGroup.java:80）在 io.netty.channel.epoll.EpollEventLoopGroup。（EpollEventLoopGroup.java:61） ......还有40多个

Answer 1

添加以下依赖项后，它已解决

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

EmbeddedCassandraServer获取＆＃34; java.lang.reflect.InvocationTargetException＆＃34;

1 个答案: