Jdbc.sink.error 发生意外错误：java.lang.NoClassDefFoundError：无法初始化类 io.confluence.connect.jdbc.sink.JdbcSinkConfig

Question

尝试在汇合平台中添加接收器连接器，但出现错误

手动安装连接器--confluence-hub install confluenceinc/kafka-connect-jdbc:10.7.6

{
"class": "io.confluent.connect.jdbc.JdbcSinkConnector",
"type": "sink",
"version": "10.7.6"
},
{
"class": "io.confluent.connect.jdbc.JdbcSourceConnector",
"type": "source",
"version": "10.7.6"
}

源连接器工作正常，Confluence UI 没有给出任何错误。

我本地使用的是Confluence 10.7.4.--confluence版本v3.2.1

Java版-- openjdk 11.0.22 2024-01-16 OpenJDK 运行时环境 OpenLogic-OpenJDK (build 11.0.22+7-adhoc.admin.jdk11u) OpenJDK 64 位服务器虚拟机 OpenLogic-OpenJDK（内部版本 11.0.22+7-adhoc.admin.jdk11u，混合模式）

连接日志出错

ERROR Uncaught exception in REST call to /connector plugins/io.confluent.connect.jdbc.JdbcSinkConnector/config/validate (org.apache.kafka.connect.runtime.rest.errors.ConnectExceptionMapper:64)
java.util.concurrent.ExecutionException: java.lang.ExceptionInInitializerError
at org.apache.kafka.connect.util.ConvertingFutureCallback.result(ConvertingFutureCallback.java:123)
at org.apache.kafka.connect.util.ConvertingFutureCallback.get(ConvertingFutureCallback.java:115)
at org.apache.kafka.connect.runtime.rest.resources.ConnectorPluginsResource.validateConfigs(ConnectorPluginsResource.java:109)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:566)
at org.glassfish.jersey.server.model.internal.ResourceMethodInvocationHandlerFactory.lambda$static$0(ResourceMethodInvocationHandlerFactory.java:52)
at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher$1.run(AbstractJavaResourceMethodDispatcher.java:134)
at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher.invoke(AbstractJavaResourceMethodDispatcher.java:177)
at org.glassfish.jersey.server.model.internal.JavaResourceMethodDispatcherProvider$TypeOutInvoker.doDispatch(JavaResourceMethodDispatcherProvider.java:219)
at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher.dispatch(AbstractJavaResourceMethodDispatcher.java:81)
at org.glassfish.jersey.server.model.ResourceMethodInvoker.invoke(ResourceMethodInvoker.java:475)
at org.glassfish.jersey.server.model.ResourceMethodInvoker.apply(ResourceMethodInvoker.java:397)
at org.glassfish.jersey.server.model.ResourceMethodInvoker.apply(ResourceMethodInvoker.java:81)
at org.glassfish.jersey.server.ServerRuntime$1.run(ServerRuntime.java:255)
at org.glassfish.jersey.internal.Errors$1.call(Errors.java:248)
at org.glassfish.jersey.internal.Errors$1.call(Errors.java:244)
at org.glassfish.jersey.internal.Errors.process(Errors.java:292)
at org.glassfish.jersey.internal.Errors.process(Errors.java:274)
at org.glassfish.jersey.internal.Errors.process(Errors.java:244)
at org.glassfish.jersey.process.internal.RequestScope.runInScope(RequestScope.java:265)
at org.glassfish.jersey.server.ServerRuntime.process(ServerRuntime.java:234)
at org.glassfish.jersey.server.ApplicationHandler.handle(ApplicationHandler.java:684)
at org.glassfish.jersey.servlet.WebComponent.serviceImpl(WebComponent.java:394)
at org.glassfish.jersey.servlet.WebComponent.service(WebComponent.java:346)
at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:358)
at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:311)
at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:205)
at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:799)
at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:554)
at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:233)
at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1624)
at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:233)
at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1440)
at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:188)
at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:505)
at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1594)
at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:186)
at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1355)
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
at org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:234)
at org.eclipse.jetty.server.handler.StatisticsHandler.handle(StatisticsHandler.java:181)
at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:127)
at org.eclipse.jetty.server.Server.handle(Server.java:516)
at org.eclipse.jetty.server.HttpChannel.lambda$handle$1(HttpChannel.java:487)
at org.eclipse.jetty.server.HttpChannel.dispatch(HttpChannel.java:732)
at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:479)
at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:277)
at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:311)
at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:105)
at org.eclipse.jetty.io.ChannelEndPoint$1.run(ChannelEndPoint.java:104)
at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.runTask(EatWhatYouKill.java:338)
at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:315)
at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.tryProduce(EatWhatYouKill.java:173)
at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.run(EatWhatYouKill.java:131)
at org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:409)
at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:883)
at org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.run(QueuedThreadPool.java:1034)
at java.base/java.lang.Thread.run(Thread.java:829)

Caused by: java.lang.ExceptionInInitializerError
at io.confluent.connect.jdbc.JdbcSinkConnector.config(JdbcSinkConnector.java:70)
at org.apache.kafka.connect.runtime.AbstractHerder.validateConnectorConfig(AbstractHerder.java:580)
at org.apache.kafka.connect.runtime.AbstractHerder.lambda$validateConnectorConfig$6(AbstractHerder.java:470)
at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
... 1 more

Caused by: org.apache.kafka.common.config.ConfigException: Invalid value insert for configuration insert.mode: Invalid enumerator
at io.confluent.connect.jdbc.sink.JdbcSinkConfig$EnumValidator.ensureValid(JdbcSinkConfig.java:658)
at org.apache.kafka.common.config.ConfigDef$ConfigKey.<init>(ConfigDef.java:1270)
at org.apache.kafka.common.config.ConfigDef.define(ConfigDef.java:159)
at org.apache.kafka.common.config.ConfigDef.define(ConfigDef.java:179)
at org.apache.kafka.common.config.ConfigDef.define(ConfigDef.java:218)
at io.confluent.connect.jdbc.sink.JdbcSinkConfig.<clinit>(JdbcSinkConfig.java:362)
... 8 more

有什么问题吗？

Answer 1

这是 Confluence JDBC 连接器中的一个错误。如果在土耳其语言环境中运行，它无法初始化自身。

错误就在这个方法:

    public static <E> EnumValidator in(E[] enumerators) {
      final List<String> canonicalValues = new ArrayList<>(enumerators.length);
      final Set<String> validValues = new HashSet<>(enumerators.length * 2);
      for (E e : enumerators) {
        canonicalValues.add(e.toString().toLowerCase());
        validValues.add(e.toString().toUpperCase());
        validValues.add(e.toString().toLowerCase());
      }
      return new EnumValidator(canonicalValues, validValues);
    }

问题是对

.toLowerCase()

和

.toUpperCase()

的调用没有指定它们执行大小写转换的区域设置。因此转换发生在默认区域设置中。对于

insert.mode

配置默认值，有效值为

InsertMode

枚举的名称（

INSERT

、

UPSERT

和

UPDATE

）加上这些值的小写值。在土耳其语语言环境中，这些是

ınsert

、

upsert

和

update

。

JdbcSinkConfig

类包含一些功能来检查配置的所有默认值是否有效。

insert.mode

参数是检查的配置值之一。

insert.mode

的默认值为

insert

。当然，在土耳其语言环境中，这不是有效值之一，因此会引发异常。

如果您可以选择使用英语语言环境而不是土耳其语语言环境，那么我希望一切顺利。如果没有，您正在等待 Confluence 修复此错误。