Performance: XMLSchemaValidator.findSchemaGrammar() called too often.
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Key: XERCESJ-1406
URL: https://issues.apache.org/jira/browse/XERCESJ-1406
Project: Xerces2-J
Issue Type: Improvement
Components: XML Schema 1.0 Structures
Affects Versions: 2.9.1
Reporter: Michael Glavassevich
On every startElement() call we attempt to look-up a SchemaGrammar which is
usually never read. In the best case it's already in the XMLGrammarPool, but
when we're processing a local elements with no namespace we're likely to end up
calling the EntityResolver over and over again (even when none is register we
always go through XMLEntityManager.resolveEntity()), attempting to load an
empty XMLInputSource with the schema loader and after all that returning null
back from the method. That's a lot of wasted time.
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