Daniel Baldes created CAMEL-11609: ------------------------------------- Summary: camel-univocity-parsers: marshaller not thread safe Key: CAMEL-11609 URL: https://issues.apache.org/jira/browse/CAMEL-11609 Project: Camel Issue Type: Bug Components: camel-csv Affects Versions: 2.19.1 Reporter: Daniel Baldes
org.apache.camel.dataformat.univocity.Marshaller.java is not thread safe. When this.adaptheaders is true, this.headers is modified in the wirteRow() method. This can lead to ConcurrentModificationExceptions (see below) and jumbled headers, occasionally. I use a {{UnivocityCsvDataFormat}} for marshalling CSV in a route which is called in parallel. The DataFormat creates a Marshaller with adaptheaders == true when headers are not specified in the format. {code}java.util.ConcurrentModificationException: null at java.util.LinkedHashMap$LinkedHashIterator.nextNode(LinkedHashMap.java:719) at java.util.LinkedHashMap$LinkedKeyIterator.next(LinkedHashMap.java:742) at org.apache.camel.dataformat.univocity.Marshaller.writeRow(Marshaller.java:95) at org.apache.camel.dataformat.univocity.Marshaller.marshal(Marshaller.java:67) at org.apache.camel.dataformat.univocity.AbstractUniVocityDataFormat.marshal(AbstractUniVocityDataFormat.java:94) at org.apache.camel.processor.MarshalProcessor.process(MarshalProcessor.java:69) at org.apache.camel.management.InstrumentationProcessor.process(InstrumentationProcessor.java:77) at org.apache.camel.processor.RedeliveryErrorHandler.process(RedeliveryErrorHandler.java:541) at org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalProcessor.java:198) at org.apache.camel.processor.Pipeline.process(Pipeline.java:120) at org.apache.camel.processor.Pipeline.process(Pipeline.java:83) at org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalProcessor.java:198) at org.apache.camel.component.direct.DirectProducer.process(DirectProducer.java:62) at org.apache.camel.processor.SendDynamicProcessor$1.doInAsyncProducer(SendDynamicProcessor.java:124) at org.apache.camel.impl.ProducerCache.doInAsyncProducer(ProducerCache.java:436) at org.apache.camel.processor.SendDynamicProcessor.process(SendDynamicProcessor.java:119) at org.apache.camel.processor.RedeliveryErrorHandler.process(RedeliveryErrorHandler.java:541) at org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalProcessor.java:198) at org.apache.camel.processor.DelegateAsyncProcessor.process(DelegateAsyncProcessor.java:97) at org.apache.camel.processor.WireTapProcessor$1.call(WireTapProcessor.java:137) at org.apache.camel.processor.WireTapProcessor$1.call(WireTapProcessor.java:133) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at java.lang.Thread.run(Thread.java:748) {code} -- This message was sent by Atlassian JIRA (v6.4.14#64029)