java.lang.NoClassDefFoundError : org/mule/api/ConnectionException when trying to use twitter connector 错误

Question

当我尝试在我的 mule 应用程序中使用 Twitter 连接器时出现以下错误。

我的依赖项(和我的耳朵)中已经有了 mule-core。实际上，我的依赖项看起来还不错..

    <dependency>
        <groupId>org.mule</groupId>
        <artifactId>mule-core</artifactId>
        <version>3.4.0</version>
        <type>jar</type>
        <scope>provided</scope>
    </dependency>
    <dependency>
        <groupId>org.mule.modules</groupId>
        <artifactId>mule-module-twitter</artifactId>
        <version>LATEST</version>
    </dependency>

等等等等

这是堆栈:

 Caused by: java.lang.NoClassDefFoundError: org/mule/api/ConnectionException
13:44:06,985 ERROR [stderr] ([].BATCH.stage1.02)    at org.mule.twitter.connectivity.TwitterConnectorConnectionFactory.makeObject(TwitterConnectorConnectionFactory.java:37)
13:44:06,985 ERROR [stderr] ([].BATCH.stage1.02)    at org.apache.commons.pool.impl.GenericKeyedObjectPool.borrowObject(GenericKeyedObjectPool.java:1220)
13:44:06,985 ERROR [stderr] ([].BATCH.stage1.02)    at org.mule.twitter.connectivity.TwitterConnectorConnectionManager.acquireConnection(TwitterConnectorConnectionManager.java:315)
13:44:06,986 ERROR [stderr] ([].BATCH.stage1.02)    at org.mule.twitter.connectivity.TwitterConnectorConnectionManager.acquireConnection(TwitterConnectorConnectionManager.java:34)
13:44:06,986 ERROR [stderr] ([].BATCH.stage1.02)    at org.mule.twitter.process.ManagedConnectionProcessInterceptor.execute(ManagedConnectionProcessInterceptor.java:60)
13:44:06,986 ERROR [stderr] ([].BATCH.stage1.02)    at org.mule.twitter.process.ManagedConnectionProcessInterceptor.execute(ManagedConnectionProcessInterceptor.java:21)
13:44:06,987 ERROR [stderr] ([].BATCH.stage1.02)    at org.mule.twitter.process.RetryProcessInterceptor.execute(RetryProcessInterceptor.java:69)
13:44:06,987 ERROR [stderr] ([].BATCH.stage1.02)    at org.mule.twitter.connectivity.ManagedConnectionProcessTemplate.execute(ManagedConnectionProcessTemplate.java:35)
13:44:06,987 ERROR [stderr] ([].BATCH.stage1.02)    at org.mule.twitter.processors.UpdateStatusMessageProcessor.process(UpdateStatusMessageProcessor.java:150)
13:44:06,988 ERROR [stderr] ([].BATCH.stage1.02)    at org.mule.execution.ExceptionToMessagingExceptionExecutionInterceptor.execute(ExceptionToMessagingExceptionExecutionInterceptor.java:27)
13:44:06,988 ERROR [stderr] ([].BATCH.stage1.02)    at org.mule.execution.MessageProcessorNotificationExecutionInterceptor.execute(MessageProcessorNotificationExecutionInterceptor.java:61)
13:44:06,988 ERROR [stderr] ([].BATCH.stage1.02)    at org.mule.execution.MessageProcessorExecutionTemplate.execute(MessageProcessorExecutionTemplate.java:47)
13:44:06,989 ERROR [stderr] ([].BATCH.stage1.02)    at org.mule.processor.chain.DefaultMessageProcessorChain.doProcess(DefaultMessageProcessorChain.java:95)
...
Caused by: java.lang.ClassNotFoundException: org.mule.api.ConnectionException

Answer 1

org.mule.api.ConnectionException 位于:

<dependency>
    <groupId>org.mule.modules</groupId>
    <artifactId>mule-module-devkit-support</artifactId>
    <version>3.4.0</version>
</dependency>

你的 POM 中有这种依赖吗？