Radu Coravu created XERCESJ-1578:
------------------------------------

             Summary: Stack overflow when validating schema with emtpy @href in 
<override>
                 Key: XERCESJ-1578
                 URL: https://issues.apache.org/jira/browse/XERCESJ-1578
             Project: Xerces2-J
          Issue Type: Bug
          Components: XML Schema 1.1 Structures
    Affects Versions: 2.11.0
            Reporter: Radu Coravu


When validating with XML Schema 1.1 support the following schema:

<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema"; 
elementFormDefault="qualified">
    <xs:include schemaLocation="testSimple.xsd"/>
    <xs:override schemaLocation=""/>
</xs:schema>


which references a very simple schema "testSimple.xsd":

<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema"; 
elementFormDefault="qualified"> </xs:schema>

I obtain a stack overflow:

java.lang.StackOverflowError
        at java.net.URLStreamHandler.setURL(URLStreamHandler.java:516)
        at java.net.URLStreamHandler.parseURL(URLStreamHandler.java:288)
        at sun.net.www.protocol.file.Handler.parseURL(Handler.java:50)
        at java.net.URL.<init>(URL.java:596)
        at java.net.URL.<init>(URL.java:464)
        at java.net.URL.<init>(URL.java:413)
        at ro.sync.util.URLUtil.clearUserInfo(URLUtil.java:434)
        at 
ro.sync.xml.catalogresolver.ExtendedCatalogResolver.debugResolve(ExtendedCatalogResolver.java:171)
        at 
ro.sync.xml.catalogresolver.ExtendedCatalogResolver.resolveEntity(ExtendedCatalogResolver.java:136)
        at 
ro.sync.xml.catalogresolver.CatalogEntityResolver.resolveEntity(CatalogEntityResolver.java:69)
        at 
ro.sync.xml.catalogresolver.DelegatingXMLEntityResolver.resolveEntity(DelegatingXMLEntityResolver.java:151)
        at 
org.apache.xerces.impl.XMLEntityManager.resolveEntity(XMLEntityManager.java:710)
        at org.apache.xerces.impl.xs.XMLSchemaLoader.resolveDocument(Unknown 
Source)
        at 
org.apache.xerces.impl.xs.traversers.XSDHandlerXerces.resolveSchemaSource(XSDHandler.java:2297)
        at 
org.apache.xerces.impl.xs.traversers.XSDHandlerXerces.constructTrees(XSDHandler.java:1163)
        at 
org.apache.xerces.impl.xs.traversers.XSDHandlerXerces.constructTrees(XSDHandler.java:1224)
        at 
org.apache.xerces.impl.xs.traversers.XSDHandlerXerces.constructTrees(XSDHandler.java:1224)
        at 
org.apache.xerces.impl.xs.traversers.XSDHandlerXerces.constructTrees(XSDHandler.java:1224)
        at 
org.apache.xerces.impl.xs.traversers.XSDHandlerXerces.constructTrees(XSDHandler.java:1224)
        at 
org.apache.xerces.impl.xs.traversers.XSDHandlerXerces.constructTrees(XSDHandler.java:1224)






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