Bug in org.xml.sax???

Question

Hi,
we're doing this big project for school and it seems as if there is a bug in the sax-pargers (org.xml.sax).
I was writing tests and i wanted to fail a test so, i made shure there was a parse error in a certain xml-file. when i ran the test, the parse-error was detected, (i also got a [fatal error] - message at System.err). I then would like to delete the file immediately so the system would be in its initial state, but this didn't work.
I have to create a Runtime object, force garbage collection (.gc()), and then put the delete-operation in a while-loop until it succeeds.
Could it be, that when the parser encounters a fatal error, that it forgets to close the streams it opened to the file???
I've checked all my code and I don't have any streams opened to the file...

Answer 1

org.xml.sax.XMLReader has two parse functions:
1. void parse(InputSource input) //Parse an XML document.
2. void parse(String systemId) //Parse an XML document from a system identifier (URI).
Because you say you don't have any streams opened to the file, I guess you're using the second.
If you use the first, you have to pass an InputSource, which can be constructed several ways.
Try constructing it from a FileInputStream. Then you can close that stream yourself:import java.io.InputStream;
import java.io.File;
import java.io.FileInputStream;
import org.xml.sax.InputSource;
import org.xml.sax.XMLReader;
import org.xml.sax.helpers.DefaultHandler;
import org.xml.sax.helpers.XMLReaderFactory;
InputStream inputStream = new FileInputStream(new File("my_file.xml"));
try {
    XMLReader xr = XMLReaderFactory.createXMLReader();
    xr.setContentHandler(xmlHandler);
    xr.setErrorHandler(xmlHandler);
    xr.parse(new InputSource(inputStream));
} finally {
    inputStream.close();    // <-- WE'RE CLOSING IT HERE
}