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https://issues.apache.org/jira/browse/XERCESJ-1683?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16931279#comment-16931279
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Mukul Gandhi commented on XERCESJ-1683:
---------------------------------------
I think that, without a sample XSD document that results in the mentioned
issue, the bug description should be considered to contain insufficient
information to attempt a fix.
Please provide the XSD document, that causes the mentioned issue, else this bug
report is liable to be resolved for insufficient information.
> NullPointerException in SymbolHash.get
> --------------------------------------
>
> Key: XERCESJ-1683
> URL: https://issues.apache.org/jira/browse/XERCESJ-1683
> Project: Xerces2-J
> Issue Type: Bug
> Components: SAX
> Reporter: Radu Coravu
> Priority: Major
>
> We use as XSModelImpl to iterate XML Schema components.
> One of our clients, on a schema that they did not provide obtained this NPE:
> {code}[ AWT-EventQueue-0 ] - java.lang.ArithmeticException: / by zero
> java.lang.ArithmeticException: / by zero
> at org.apache.xerces.util.SymbolHash.get(Unknown Source)
> at org.apache.xerces.impl.xs.XSModelImpl.getSubstitutionGroup(Unknown
> Source) {code}
> The NPE seams feasible if a SymbolHash with zero length is constructed and
> then queried for a value. Maybe this could be taken into account on your side.
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