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}
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