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From "Michael Glavassevich (JIRA)" <xerces-j-...@xml.apache.org>
Subject [jira] [Updated] (XERCESJ-1516) Delay loading of Eclipse PsychoPath classes until an XML Schema 1.1 processor is used.
Date Tue, 31 May 2011 03:16:47 GMT

     [ https://issues.apache.org/jira/browse/XERCESJ-1516?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Michael Glavassevich updated XERCESJ-1516:
------------------------------------------

    Description: 
An XSDTypeAlternativeTraverser is always created by the XSDHandler, regardless of whether
we're doing XML Schema 1.1 processing. This causes us to load Eclipse PsychoPath even when
it's not going to be used. By only creating an XSDTypeAlternativeTraverser in XML Schema 1.1
mode we can avoid loading PsychoPath classes in XML Schema 1.0 mode.

This should allow people to continue using Xerces' XML Schema 1.0 processor without having
to include PsychoPath on their class path. With Xerces-J 2.11.0 they would get the following
stack trace without the jar:

Exception in thread "main" java.lang.NoClassDefFoundError: org/eclipse/wst/xml/xpath2/processor/XPathParserException
  at org.apache.xerces.impl.xs.traversers.XSDHandler.createTraversers(Unknown Source)
  at org.apache.xerces.impl.xs.traversers.XSDHandler.prepareForTraverse(Unknown Source)
  at org.apache.xerces.impl.xs.traversers.XSDHandler.parseSchema(Unknown Source)
  ...

  was:
An XSDTypeAlternativeTraverser is always created by the XSDHandler, regardless of whether
we're doing XML Schema 1.1 processing. This causes us to load Eclipse PsychoPath even when
it's not going to be used. By only creating an XSDTypeAlternativeTraverser in XML Schema 1.1
mode we can avoid loading PsychoPath classes in XML Schema 1.0 mode.

This should allow people to continue using Xerces without having to include PsychoPath on
their class path. With Xerces-J 2.11.0 they would get the following stack trace without the
jar:

Exception in thread "main" java.lang.NoClassDefFoundError: org/eclipse/wst/xml/xpath2/processor/XPathParserException
  at org.apache.xerces.impl.xs.traversers.XSDHandler.createTraversers(Unknown Source)
  at org.apache.xerces.impl.xs.traversers.XSDHandler.prepareForTraverse(Unknown Source)
  at org.apache.xerces.impl.xs.traversers.XSDHandler.parseSchema(Unknown Source)
  ...


> Delay loading of Eclipse PsychoPath classes until an XML Schema 1.1 processor is used.
> --------------------------------------------------------------------------------------
>
>                 Key: XERCESJ-1516
>                 URL: https://issues.apache.org/jira/browse/XERCESJ-1516
>             Project: Xerces2-J
>          Issue Type: Improvement
>          Components: XML Schema 1.1 Structures
>    Affects Versions: 2.11.0
>            Reporter: Michael Glavassevich
>            Assignee: Michael Glavassevich
>            Priority: Minor
>
> An XSDTypeAlternativeTraverser is always created by the XSDHandler, regardless of whether
we're doing XML Schema 1.1 processing. This causes us to load Eclipse PsychoPath even when
it's not going to be used. By only creating an XSDTypeAlternativeTraverser in XML Schema 1.1
mode we can avoid loading PsychoPath classes in XML Schema 1.0 mode.
> This should allow people to continue using Xerces' XML Schema 1.0 processor without having
to include PsychoPath on their class path. With Xerces-J 2.11.0 they would get the following
stack trace without the jar:
> Exception in thread "main" java.lang.NoClassDefFoundError: org/eclipse/wst/xml/xpath2/processor/XPathParserException
>   at org.apache.xerces.impl.xs.traversers.XSDHandler.createTraversers(Unknown Source)
>   at org.apache.xerces.impl.xs.traversers.XSDHandler.prepareForTraverse(Unknown Source)
>   at org.apache.xerces.impl.xs.traversers.XSDHandler.parseSchema(Unknown Source)
>   ...

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