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https://issues.apache.org/jira/browse/XERCESJ-1551?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Michael Glavassevich resolved XERCESJ-1551.
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Resolution: Incomplete
Pointing to a commit made years ago doesn't imply that there's an issue today.
Please provide an actual test case which demonstrates a problem with the
current code base.
> An incomplete fix for the NPE bugs in XSWildcardDecl.java
> ---------------------------------------------------------
>
> Key: XERCESJ-1551
> URL: https://issues.apache.org/jira/browse/XERCESJ-1551
> Project: Xerces2-J
> Issue Type: Bug
> Components: Other
> Reporter: Guangtai Liang
> Priority: Critical
> Labels: incomplete_fix, missing_fixes
> Original Estimate: 20m
> Remaining Estimate: 20m
>
> The fix revision 319317 was aimed to remove an NPE bug on the
> "fNamespaceList" in the method "getNsConstraintList" of the file
> "/xerces/java/trunk/src/org/apache/xerces/impl/xs/XSWildcardDecl.java" , but
> it is incomplete.
> Since the "fNamespaceList" is a class field and also could be null during the
> run-time execution, it should also be null-checked before being dereferenced
> in other methods (e.g., Line 1311 in the method "checkFacets").
> The buggy code locations are as bellows:
> Lines 91, 93, 103, and 105 of the method "allowNamespace";
> Line 137 of the method "isSubsetOf";
> Lines 379 and 383 of the method "performIntersectionWith"
> Lines 404, 410, and 411 of the method "areSame"
> Lines 488, 493, 497, 499, 501, and 502 of the method "toString";
>
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