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https://issues.apache.org/jira/browse/CAMEL-11000?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Andrea Cosentino resolved CAMEL-11000.
--------------------------------------
Resolution: Fixed
> Property 'accessExternalDTD' is not recognized by (all) Xerces
> --------------------------------------------------------------
>
> Key: CAMEL-11000
> URL: https://issues.apache.org/jira/browse/CAMEL-11000
> Project: Camel
> Issue Type: Bug
> Components: camel-validator
> Affects Versions: 2.17.5, 2.18.3
> Reporter: Bernard Ligny
> Assignee: Andrea Cosentino
> Fix For: 2.17.6, 2.18.4, 2.19.0
>
>
> When upgrading from v2.18.1 to 2.18.3, we encounter a (blocking) regression,
> preventing routes involving validator component to successfully start.
> Indeed, one of the recent validation-related changes is not fully compatible
> with all versions of Xerces. Especially when deployed on JBoss Wildlfy
> 10.1.0.Final :-(
> *Stack trace*:
> {code:java}
> Caused by: java.lang.IllegalStateException:
> org.xml.sax.SAXNotRecognizedException: Property
> 'http://javax.xml.XMLConstants/property/accessExternalDTD' is not recognized.
> at
> org.apache.camel.processor.validation.SchemaReader.createSchemaFactory(SchemaReader.java:181)
> at
> org.apache.camel.processor.validation.SchemaReader.getSchemaFactory(SchemaReader.java:152)
> at
> org.apache.camel.processor.validation.SchemaReader.createSchema(SchemaReader.java:192)
> at
> org.apache.camel.processor.validation.SchemaReader.loadSchema(SchemaReader.java:84)
> at
> org.apache.camel.component.validator.ValidatorEndpoint.createProducer(ValidatorEndpoint.java:119)
> at
> org.apache.camel.impl.ProducerCache.doGetProducer(ProducerCache.java:574)
> ... 78 more
> Caused by: org.xml.sax.SAXNotRecognizedException: Property
> 'http://javax.xml.XMLConstants/property/accessExternalDTD' is not recognized.
> at
> org.apache.xerces.jaxp.validation.XMLSchemaFactory.setProperty(XMLSchemaFactory.java:436)
> at __redirected.__SchemaFactory.setProperty(__SchemaFactory.java:143)
> at
> org.apache.camel.processor.validation.SchemaReader.createSchemaFactory(SchemaReader.java:178)
> ... 83 more
> {code}
> In particular, in the following code:
> {code:java}
> protected SchemaFactory createSchemaFactory() {
> ...
> try {
> factory.setProperty(XMLConstants.ACCESS_EXTERNAL_DTD, "");
> } catch (SAXException e) {
> LOG.error(e.getMessage(), e);
> throw new IllegalStateException(e);
> }
>
> }
> {code}
>
> Would it be possible to issue a simple warning, rather then raising an
> exception ?
> (>see Oracle recommandations:
> https://docs.oracle.com/javase/tutorial/jaxp/properties/error.html)
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