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https://issues.apache.org/activemq/browse/CAMEL-1565?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=51390#action_51390
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Claus Ibsen commented on CAMEL-1565:
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Raul, we will not backport a fix into Camel 1.4.x.
You have to use your own component or patch Camel yourself.
But the patch will make it into the existing 1.x line, that is 1.6.1
> Make camel-validation thread-safe
> ---------------------------------
>
> Key: CAMEL-1565
> URL: https://issues.apache.org/activemq/browse/CAMEL-1565
> Project: Apache Camel
> Issue Type: Bug
> Components: camel-core
> Affects Versions: 1.4.0
> Reporter: Raul Kripalani
>
> When a flow which contains a camel-validation endpoint is started, the XSD
> schemas are not loaded until the first request comes in and the
> camel-validation endpoint is first hit.
> If two requests come in simultaneously, the initialization will be performed
> twice, at the same time. It seems that SchemaFactory is not thread-safe, so
> this results in the following exception:
> 10:38:20,860 | ERROR - org.apache.camel.processor.DeadLetterChannel -
> org.apache.camel.processor.Logger - Failed delivery for exchangeId:
> ID-ATOS-B624
> E47AF0/3211-1240562892751/0-11. On delivery attempt: 0 caught:
> org.xml.sax.SAXException: FWK005 parse may not be called while parsing.
> org.xml.sax.SAXException: FWK005 parse may not be called while parsing.
> at
> com.sun.org.apache.xerces.internal.jaxp.validation.Util.toSAXException(Util.java:62)
> at
> com.sun.org.apache.xerces.internal.jaxp.validation.XMLSchemaFactory.newSchema(XMLSchemaFactory.java:214)
> at
> javax.xml.validation.SchemaFactory.newSchema(SchemaFactory.java:594)
> at
> org.apache.camel.processor.validation.ValidatingProcessor.createSchema(ValidatingProcessor.java:204)
> at
> org.apache.camel.processor.validation.ValidatingProcessor.getSchema(ValidatingProcessor.java:118)
> at
> org.apache.camel.processor.validation.ValidatingProcessor.process(ValidatingProcessor.java:54)
> at
> org.apache.camel.impl.ProcessorEndpoint.onExchange(ProcessorEndpoint.java:92)
> at
> org.apache.camel.impl.ProcessorEndpoint$1.process(ProcessorEndpoint.java:66)
> at
> org.apache.camel.impl.converter.AsyncProcessorTypeConverter$ProcessorToAsyncProcessorBridge.process(AsyncProcessorTypeConverter.java:43)
>
> .....
> For more info:
> http://www.nabble.com/Concurrency-Issue-with-camel-validation-td23213294.html
> Is it possible to backport the fix to 1.4?
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