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  1. Xerces2-J
  2. XERCESJ-1551

An incomplete fix for the NPE bugs in XSWildcardDecl.java

    Details

    • Type: Bug
    • Status: Resolved
    • Priority: Critical
    • Resolution: Incomplete
    • Affects Version/s: None
    • Fix Version/s: None
    • Component/s: Other

      Description

      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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            • Assignee:
              Unassigned
              Reporter:
              guangtai Guangtai Liang
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