Last updated on FEBRUARY 08, 2017
Applies to:
Oracle XML Developers Kit - Version 11.2.0.3 and laterInformation in this document applies to any platform.
***Checked for relevance on 07-Jun-2013***
Symptoms
The DocumentBuilderFactory created by JXDocumentBuilderFactory does not honor the setting setIgnoringComments(true). The code below will print a comment node if run with xmlparserv2.jar in the classpath.
Example code - XMLParserTest.java:
1. Compile the code using:
javac $ javac XMLParserTest.java
import java.io.*;
import javax.xml.parsers.*;
import org.w3c.dom.*;
import org.xml.sax.*;
public class XMLParserTest {
public static void main(String[] args)
throws ParserConfigurationException, SAXException, IOException {
DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
System.out.println("Factory=" + factory);
factory.setIgnoringComments(true);
DocumentBuilder builder = factory.newDocumentBuilder();
System.out.println("Builder=" + builder);
InputSource input = new InputSource(
new StringReader("<test><!-- comment --></test>"));
Document document = builder.parse(input);
dump(document.getChildNodes());
}
private static void dump(NodeList nodeList) {
for (int i = 0; i < nodeList.getLength(); i++) {
Node item = nodeList.item(i);
System.out.println("- Item:" + item.getNodeName() + "=" + item.getNodeValue());
dump(item.getChildNodes());
}
}
}
import javax.xml.parsers.*;
import org.w3c.dom.*;
import org.xml.sax.*;
public class XMLParserTest {
public static void main(String[] args)
throws ParserConfigurationException, SAXException, IOException {
DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
System.out.println("Factory=" + factory);
factory.setIgnoringComments(true);
DocumentBuilder builder = factory.newDocumentBuilder();
System.out.println("Builder=" + builder);
InputSource input = new InputSource(
new StringReader("<test><!-- comment --></test>"));
Document document = builder.parse(input);
dump(document.getChildNodes());
}
private static void dump(NodeList nodeList) {
for (int i = 0; i < nodeList.getLength(); i++) {
Node item = nodeList.item(i);
System.out.println("- Item:" + item.getNodeName() + "=" + item.getNodeValue());
dump(item.getChildNodes());
}
}
}
2. Run the code using:
java -cp .:$ORACLE_HOME/xdk/lib/xmlparserv2.jar XMLParserTest
Sample Output:
Factory=oracle.xml.jaxp.JXDocumentBuilderFactory@35d9dc39
Builder=oracle.xml.jaxp.JXDocumentBuilder@2a0ecd7e
- Item:test=null
- Item:#comment= comment
Cause
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