Java Programming

I'm using a XMLReader object to Parse XML files. About 20000 XML documents need to be parsed, so the parse(...) method is called about 20000 times in a loop.
The XML string to be parsed are all about 2500 bytes long. Java 1.5 is used.

import java.io.StringReader;
import org.xml.sax.XMLReader;

private final XMLReader parser;
private StringReader stringReader;

public void myParseMethod(final String xml) {
try {
stringReader = new StringReader(xml);
parser.parse(new InputSource(stringReader));
stringReader.close();
} catch (final SAXParseException e) {
} catch (final SAXException e) {
} catch (final IOException e) {
}


Calling the method myParseMethod(final String xml) goes well till about 2000 times. Then the following exception is thrown:

java.lang.OutOfMemoryError: Java heap space
at java.io.BufferedWriter.<init>(Unknown Source)
at java.io.BufferedWriter.<init>(Unknown Source)
at java.io.PrintWriter.<init>(Unknown Source)
at java.io.PrintWriter.<init>(Unknown Source)
at com.sun.org.apache.xerces.internal.util.DefaultErrorHandler.<init>(Unknown Source)
at com.sun.org.apache.xerces.internal.impl.xs.XMLSchemaLoader.<init>(Unknown Source)
at com.sun.org.apache.xerces.internal.impl.xs.XMLSchemaLoader.<init>(Unknown Source)
at com.sun.org.apache.xerces.internal.impl.xs.XMLSchemaValidator.<init>(Unknown Source)
at com.sun.org.apache.xerces.internal.jaxp.validation.xs.InsulatedSchemaValidator.<init>(Unknown Source)
at com.sun.org.apache.xerces.internal.jaxp.validation.xs.SchemaImpl.newXNIValidator(Unknown Source)
at com.sun.org.apache.xerces.internal.jaxp.validation.XercesSchema._newValidatorHandler(Unknown Source)
at com.sun.org.apache.xerces.internal.jaxp.validation.XercesSchema.newValidatorHandler(Unknown Source)
at com.sun.org.apache.xerces.internal.parsers.JAXPConfiguration.configurePipeline(Unknown Source)
at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown Source)
at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown Source)
at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(Unknown Source)
at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(Unknown Source)


Many thanks for help,

Frank

Edited by: 863908 on Jun 6, 2011 8:09 AM

Edited by: 863908 on Jun 6, 2011 8:11 AM