Claus Ibsen created CAMEL-22491:
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Summary: camel-plc4j - NPE exception when cannot connect to remote
service
Key: CAMEL-22491
URL: https://issues.apache.org/jira/browse/CAMEL-22491
Project: Camel
Issue Type: Bug
Reporter: Claus Ibsen
Fix For: 4.16.0
If the remote service is offline then you have an ugly NPE exception
{code:java}
Caused by: java.lang.NullPointerException: Cannot invoke
"org.apache.plc4x.java.api.PlcConnection.readRequestBuilder()" because
"this.connection" is null at
org.apache.camel.component.plc4x.Plc4XEndpoint.buildPlcReadRequest(Plc4XEndpoint.java:204)
~[?:?] at
org.apache.camel.component.plc4x.Plc4XConsumer.startUnTriggered(Plc4XConsumer.java:103)
~[?:?] at
org.apache.camel.component.plc4x.Plc4XConsumer.doStart(Plc4XConsumer.java:85)
~[?:?] at
org.apache.camel.support.service.BaseService.start(BaseService.java:123)
~[camel-api-4.15.0-SNAPSHOT.jar:4.15.0-SNAPSHOT] at
org.apache.camel.support.service.ServiceHelper.startService(ServiceHelper.java:127)
~[camel-api-4.15.0-SNAPSHOT.jar:4.15.0-SNAPSHOT] at
org.apache.camel.support.EventDrivenPollingConsumer.doStart(EventDrivenPollingConsumer.java:289)
~[camel-support-4.15.0-SNAPSHOT.jar:4.15.0-SNAPSHOT] at
org.apache.camel.component.plc4x.Plc4XPollingConsumer.doStart(Plc4XPollingConsumer.java:57)
~[?:?] at
org.apache.camel.support.service.BaseService.start(BaseService.java:123)
~[camel-api-4.15.0-SNAPSHOT.jar:4.15.0-SNAPSHOT] at
org.apache.camel.support.service.ServiceHelper.startService(ServiceHelper.java:127)
~[camel-api-4.15.0-SNAPSHOT.jar:4.15.0-SNAPSHOT] at
org.apache.camel.impl.engine.InternalServiceManager.doAddService(InternalServiceManager.java:144)
~[camel-base-engine-4.15.0-SNAPSHOT.jar:4.15.0-SNAPSHOT] at
org.apache.camel.impl.engine.AbstractCamelContext.addService(AbstractCamelContext.java:1545)
~[camel-base-engine-4.15.0-SNAPSHOT.jar:4.15.0-SNAPSHOT] at
org.apache.camel.support.cache.ServicePool$SinglePool.acquire(ServicePool.java:215)
~[camel-support-4.15.0-SNAPSHOT.jar:4.15.0-SNAPSHOT] at
org.apache.camel.support.cache.ServicePool$SinglePool.acquire(ServicePool.java:197)
~[camel-support-4.15.0-SNAPSHOT.jar:4.15.0-SNAPSHOT] at
org.apache.camel.support.cache.ServicePool.acquire(ServicePool.java:116)
~[camel-support-4.15.0-SNAPSHOT.jar:4.15.0-SNAPSHOT] at
org.apache.camel.support.cache.PollingConsumerServicePool.acquire(PollingConsumerServicePool.java:28)
~[camel-support-4.15.0-SNAPSHOT.jar:4.15.0-SNAPSHOT] at
org.apache.camel.support.cache.DefaultConsumerCache.acquirePollingConsumer(DefaultConsumerCache.java:102)
~[camel-support-4.15.0-SNAPSHOT.jar:4.15.0-SNAPSHOT] {code}
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