[CAMEL-18185] slack: npe when processing batch messages

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 3.14.4, 3.18.0
• Component/s: camel-core, camel-slack
• Estimated Complexity: Unknown
• Assignee: Claus Ibsen
• Reporter: Luca Burgazzoli
• Created: 10/Jun/22 23:10
• Updated: 20/Jun/22 16:35
• Resolved: 20/Jun/22 16:35

Description

Running a camel component to read from slack lead to the following error:

Exchange[854F138824ACA43-0000000000000003]. Caused by: [org.apache.camel.NoTypeConversionAvailableException - No type converter available to convert from type: null to the required type: java.io.InputStream with value null]
	at org.apache.camel.support.MessageSupport.getMandatoryBody(MessageSupport.java:125)
	at org.apache.camel.support.processor.UnmarshalProcessor.process(UnmarshalProcessor.java:58)
	at org.apache.camel.processor.errorhandler.RedeliveryErrorHandler$RedeliveryTask.doRun(RedeliveryErrorHandler.java:812)
	at org.apache.camel.processor.errorhandler.RedeliveryErrorHandler$RedeliveryTask.run(RedeliveryErrorHandler.java:720)
	at org.apache.camel.impl.engine.DefaultReactiveExecutor$Worker.schedule(DefaultReactiveExecutor.java:193)
	at org.apache.camel.impl.engine.DefaultReactiveExecutor.scheduleMain(DefaultReactiveExecutor.java:64)
	at org.apache.camel.processor.Pipeline.process(Pipeline.java:184)
	at org.apache.camel.impl.engine.CamelInternalProcessor.process(CamelInternalProcessor.java:398)
	at org.apache.camel.component.slack.SlackConsumer.processBatch(SlackConsumer.java:133)
	at org.apache.camel.component.slack.SlackConsumer.poll(SlackConsumer.java:87)
	at org.apache.camel.support.ScheduledPollConsumer.doRun(ScheduledPollConsumer.java:202)
	at org.apache.camel.support.ScheduledPollConsumer.run(ScheduledPollConsumer.java:116)
	at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
	at java.base/java.util.concurrent.FutureTask.runAndReset(FutureTask.java:305)
	at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:305)
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
	at java.base/java.lang.Thread.run(Thread.java:829)
Caused by: org.apache.camel.NoTypeConversionAvailableException: No type converter available to convert from type: null to the required type: java.io.InputStream with value null
	at org.apache.camel.impl.converter.CoreTypeConverterRegistry.mandatoryConvertTo(CoreTypeConverterRegistry.java:275)
	at org.apache.camel.support.MessageSupport.getMandatoryBody(MessageSupport.java:123)
	... 17 more

Issue Links

• is broken by: CAMEL-18210 camel-core - Pooled exchanges in batch consumer may use an exchange concurrently