FULL PRODUCT VERSION :
java version "1.6.0"
Java(TM) SE Runtime Environment (build 1.6.0-b105)
Java HotSpot(TM) Client VM (build 1.6.0-b105, mixed mode, sharing)

ADDITIONAL OS VERSION INFORMATION :
Windows XP, Windows 200

A DESCRIPTION OF THE PROBLEM :
XMLStreamReader close the underlying stream when next method is called and the node type is "End Document".

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Read more than one XML from the same stream. (See source code)




EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
XMLStreamReader never close the underlying stream as says the documentation.
ACTUAL -
XMLStreamReader close the stream

ERROR MESSAGES/STACK TRACES THAT OCCUR :
Exception in thread "main" java.io.IOException: Stream closed
at java.util.zip.ZipInputStream.ensureOpen(ZipInputStream.java:44)
at java.util.zip.ZipInputStream.closeEntry(ZipInputStream.java:91)
at XMLStreamReaderBug.main(XMLStreamReaderBug.java:47)

REPRODUCIBILITY :
This bug can be reproduced always.

---------- BEGIN SOURCE ----------
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.zip.ZipEntry;
import java.util.zip.ZipInputStream;
import java.util.zip.ZipOutputStream;

import javax.xml.stream.XMLInputFactory;
import javax.xml.stream.XMLOutputFactory;
import javax.xml.stream.XMLStreamException;
import javax.xml.stream.XMLStreamReader;
import javax.xml.stream.XMLStreamWriter;

public class XMLStreamReaderBug {

private static String FILENAME = "XMLStreamReaderBug.zip";

public static void main(String[] args) throws IOException, XMLStreamException {

ZipOutputStream zos = new ZipOutputStream(
new FileOutputStream(FILENAME));

zos.putNextEntry(new ZipEntry("a.xml"));
writeXML(zos);
zos.closeEntry();

zos.putNextEntry(new ZipEntry("b.xml"));
writeXML(zos);
zos.closeEntry();

zos.close();

ZipInputStream zis = new ZipInputStream(
new FileInputStream(FILENAME));

for(ZipEntry entry = zis.getNextEntry();
entry != null;
entry = zis.getNextEntry()){

readXML(zis);

zis.closeEntry();
}
zis.close();
}

private static void writeXML(OutputStream os) throws XMLStreamException{
XMLOutputFactory outputFactory = XMLOutputFactory.newInstance();
XMLStreamWriter writer = outputFactory.createXMLStreamWriter(os);
writer.writeStartDocument();
writer.writeStartElement("test");
writer.writeCharacters("test");
writer.writeEndElement();
writer.writeEndDocument();
writer.close();
}

private static void readXML(InputStream is) throws XMLStreamException{

XMLInputFactory factory = XMLInputFactory.newInstance();
XMLStreamReader reader = factory.createXMLStreamReader(is);

for (int nodeType = reader.next();
nodeType != XMLStreamReader.END_DOCUMENT;
nodeType = reader.next()) {
//BUG: When nodeType == END_DOCUMENT -> Reader close stream
System.out.println(nodeType);
}
reader.close();
}

}
---------- END SOURCE ----------

CUSTOMER SUBMITTED WORKAROUND :
Overload Stream close method:
FileInputStream fis = new FileInputStream(FILENAME);
ZipInputStream zis = new ZipInputStream(fis){
public void close() throws IOException {
//Do nothing
}
};

//Do something

fis.close();