Crash because of incorrect doctype

PROBLEM:

Application crashes because of bad url in doctype. NullPointerException is 
thrown.

RESULT:

There is attached file error.epub with wrong doctype in one file. When 
validating a warning "Unresolved external XML entity" is reported, but then an 
exception is thrown:

WARNING: OEBPS/error.xhtml: Unresolved external XML entity 
'http:/www.w3.org/TR/xhtml11/DTD/xhtml11.dtd'
Internal Server Error
java.lang.NullPointerException
    at sun.net.www.ParseUtil.toURI(ParseUtil.java:261)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:905)
    at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:836)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1172)
    at java.net.URL.openStream(URL.java:1010)
    at com.adobe.epubcheck.xml.XMLParser.resolveEntity(XMLParser.java:341)
    at com.sun.org.apache.xerces.internal.util.EntityResolverWrapper.resolveEntity(EntityResolverWrapper.java:107)
    at com.sun.org.apache.xerces.internal.impl.XMLEntityManager.resolveEntityAsPerStax(XMLEntityManager.java:1018)
    at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl$DTDDriver.dispatch(XMLDocumentScannerImpl.java:1192)
    at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl$DTDDriver.next(XMLDocumentScannerImpl.java:1090)
    at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl$PrologDriver.next(XMLDocumentScannerImpl.java:1003)
    at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(XMLDocumentScannerImpl.java:648)
    at com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.next(XMLNSDocumentScannerImpl.java:140)
    at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:511)
    at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:808)
    at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:737)
    at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(XMLParser.java:119)
    at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(AbstractSAXParser.java:1205)
    at com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl$JAXPSAXParser.parse(SAXParserImpl.java:522)
    at javax.xml.parsers.SAXParser.parse(SAXParser.java:395)
    at com.adobe.epubcheck.xml.XMLParser.process(XMLParser.java:291)
    at com.adobe.epubcheck.ops.OPSChecker.runChecks(OPSChecker.java:68)
    at com.adobe.epubcheck.opf.OPFChecker.checkItemContent(OPFChecker.java:266)
    at com.adobe.epubcheck.opf.OPFChecker.runChecks(OPFChecker.java:136)
    at com.adobe.epubcheck.ocf.OCFChecker.runChecks(OCFChecker.java:100)
    at com.adobe.epubcheck.api.EpubCheck.validate(EpubCheck.java:153)
    at com.adobe.epubcheck.web.EpubCheckServlet.doPost(EpubCheckServlet.java:77)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:637)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:291)
    at org.apache.coyote.http11.Http11AprProcessor.process(Http11AprProcessor.java:877)
    at org.apache.coyote.http11.Http11AprProtocol$Http11ConnectionHandler.process(Http11AprProtocol.java:594)
    at org.apache.tomcat.util.net.AprEndpoint$Worker.run(AprEndpoint.java:1675)
    at java.lang.Thread.run(Thread.java:662)

PLATFORM:

EpubCheck 1.2, Tomcat 6.0.33, JDK 1.6.0_26

ADDITIONAL INFO:

Broken file is attached.
Original issue reported on code.google.com by piotr.fu...@gmail.com on 10 Oct 2011 at 9:12
Attachments:
error.epub
jacshore / epubcheck

Crash because of incorrect doctype #129
