mishakharaba / xerces-for-android Goto Github PK

It would be nice to be able to download a packaged JAR instead of having to 
check out the source and build the jar.

What steps will reproduce the problem?

1. Adding xerces-for-android project in Build path of Android project
2. Calling the following code:
DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();


What is the expected output? What do you see instead?

The following exception is thrown (see the attachment for complete stack trace):

FATAL EXCEPTION: main
mf.javax.xml.parsers.FactoryConfigurationError: Provider 
com.sun.org.apache.xerces.internal.jaxp.DocumentBuilderFactoryImpl not found
   at mf.javax.xml.parsers.DocumentBuilderFactory.newInstance(DocumentBuilderFactory.java:146)


Please provide any additional information below.


Changing the string in line 144 in 
mf.javax.xml.parsers.DocumentBuilderFactory.java from:
"com.sun.org.apache.xerces.internal.jaxp.DocumentBuilderFactoryImpl"
to:
"mf.org.apache.xerces.jaxp.DocumentBuilderFactoryImpl"
solves the problem.

What steps will reproduce the problem?
I parse a XML file (RSS) of the form 

<?xml version="1.0" encoding="utf-8" ?>
<rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom" 
xmlns:rtl="http://www.rtl.be/rtltvi/dtds/rss-1.0.dtd">
    <channel>
        <item>
            <title>title</title>
            <link>url</link>
            <description></description>
            <pubDate short="04-10-2013">date</pubDate>
            <enclosure url="http://www.dns.com/4212514.jpg" length="0" type="image/jpeg" />

...



XPathExpression<Object> query = 
XPathFactory.instance().compile("/rss/channel/item");
List<Object> lst = query.evaluate(document);
    for(Object o: lst){
        if(o instanceof Element){
            Element current = (Element) o;
                for(Object oo: XPathFactory.instance().compile("./enclosure").evaluate(current)){
                }
}
}
}

If I tried to access to oo, it fails.
If I try to list Attributes, it fails.
If I use the query ./enclosure/@url, it fails

What is the expected output? What do you see instead?
To get the attribute's value

What version of the product are you using? On what operating system?
deport of today (2014 Oct 12)


Please provide any additional information below.
I think about a problem in the short tag handling ( open and close the tag < 
... />)

Obfuscated and minimized APK with xerces-for-android has a smaller file size of 
about 500KB. However, it throws run-time exception as some classes are loaded 
dynamically by their names.

What would be the correct ProGuard configuration for xerces-for-android?