[CAMEL-16377] camel-core - Recipient List EIP - Failed to create Producer for endpoint - NPE in ServicePool

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Information Provided
• Affects Version/s: 3.7.3
• Fix Version/s: 3.7.4, 3.10.0
• Component/s: camel-core
• Estimated Complexity: Unknown
• Assignee: Unassigned
• Reporter: Dmytro Chasovskyi
• Created: 19/Mar/21 12:04
• Updated: 19/Mar/21 13:55
• Resolved: 19/Mar/21 13:55

Description

Hi, this is more like a question.

I am switching from the 2.24 version to 3.7.3, and I am getting an error in the .recepietnList. StackOverflow question

The error itself:

CaughtExceptionType: org.apache.camel.FailedToCreateProducerException  CaughtExceptionMessage: Failed to create Producer for endpoint: direct:xyz. Reason: java.lang.NullPointerException  StackTrace: org.apache.camel.FailedToCreateProducerException: Failed to create Producer for endpoint: direct:xyz Reason: java.lang.NullPointerExceptionCaughtExceptionType: org.apache.camel.FailedToCreateProducerException  CaughtExceptionMessage: Failed to create Producer for endpoint: direct:xyz. Reason: java.lang.NullPointerException  StackTrace: org.apache.camel.FailedToCreateProducerException: Failed to create Producer for endpoint: direct:xyz. Reason: java.lang.NullPointerException at org.apache.camel.support.cache.DefaultProducerCache.acquireProducer(DefaultProducerCache.java:154) at org.apache.camel.processor.RecipientListProcessor.createProcessorExchangePairs(RecipientListProcessor.java:219) at org.apache.camel.processor.MulticastProcessor.process(MulticastProcessor.java:276) at org.apache.camel.processor.RecipientList.sendToRecipientList(RecipientList.java:222) at org.apache.camel.processor.RecipientList.process(RecipientList.java:185) at org.apache.camel.processor.Pipeline$PipelineTask.run(Pipeline.java:90) at org.apache.camel.impl.engine.DefaultReactiveExecutor$Worker.schedule(DefaultReactiveExecutor.java:148) at org.apache.camel.impl.engine.DefaultReactiveExecutor.scheduleMain(DefaultReactiveExecutor.java:60) at org.apache.camel.processor.Pipeline.process(Pipeline.java:147) at org.apache.camel.impl.engine.CamelInternalProcessor.process(CamelInternalProcessor.java:312) at org.apache.camel.component.seda.SedaConsumer.sendToConsumers(SedaConsumer.java:274) at org.apache.camel.component.seda.SedaConsumer.doRun(SedaConsumer.java:187) at org.apache.camel.component.seda.SedaConsumer.run(SedaConsumer.java:130) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1130) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:630) at java.base/java.lang.Thread.run(Thread.java:832)Caused by: java.lang.NullPointerException at org.apache.camel.support.cache.ServicePool$SinglePool.acquire(ServicePool.java:210) at org.apache.camel.support.cache.ServicePool$SinglePool.acquire(ServicePool.java:193) at org.apache.camel.support.cache.ServicePool.acquire(ServicePool.java:109) at org.apache.camel.support.cache.DefaultProducerCache.acquireProducer(DefaultProducerCache.java:125) ... 15 more

It looks like the behavior changed between versions. Is there a way how I can address it? I walked through the migration guide, search StackOverflow, but there is no progress. Any idea?