Validation block: conflict over Xerces xml-apis and jsr-173
javax.xml.XMLConstants
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Key: COCOON-1878
URL: http://issues.apache.org/jira/browse/COCOON-1878
Project: Cocoon
Type: Bug
Components: Blocks: Validation
Versions: 2.1.8, 2.1.9
Reporter: Ellis Pritchard
Priority: Minor
blocks/validation/java/org/apache/cocoon/components/validation/jaxp/JaxpSchemaParser.java
relies on the following constants defined in javax.xml.XMLConstants :
XMLConstants.RELAXNG_NS_URI
XMLConstants.W3C_XML_SCHEMA_NS_URI
XMLConstants.XML_DTD_NS_URI
These constants come from xml-apis-1.3.02.jar, which is part of Xerces; however
the official release of javax.xml.XMLConstants from Sun (e.g. jsr-173 [1]) does
not contain these constants, and therefore installing e.g. stax-api-1.0.1.jar,
which contains the official XML API, may create a build or run-time failure,
depending on the order that jars are loaded.
These constants should probably be obtained from elsewhere to avoid future
problems.
Work-around: disable validation block, or remove XMLConstants from offical jars.
[1] http://java.sun.com/webservices/docs/1.6/api/index.html
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