Mustang b56 introduced the file META-INF/services/org. customer .xerces.xni.parser.XMLParserConfiguration in jre/lib/resources.jar with contents:

---%<---
com.sun.org. customer .xerces.internal.parsers.XIncludeAwareParserConfiguration
---%<---

This is illegal because the named class does *not* implement the named interface. Rather, if anything it implements something under com.sun.**. The change causes applications using a downloaded copy of Xerces to fail:

---%<---
import org. customer .xerces.parsers.SAXParser;
public class Main {
    public static void main(String[] args) {
        //System.setProperty("org. customer .xerces.xni.parser.XMLParserConfiguration", "org. customer .xerces.parsers.XML11Configuration");
        new SAXParser();
        System.out.println("OK");
    }
}
---%<---

produces (on my Fedora Core 4 Linux)

---%<---
$ java -showversion -cp .:xerces-2.6.2.jar Main
java version "1.6.0-ea"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.6.0-ea-b55)
Java HotSpot(TM) Client VM (build 1.6.0-ea-b55, mixed mode, sharing)

OK
---%<---
$ java -showversion -cp .:xerces-2.6.2.jar Main
java version "1.6.0-ea"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.6.0-ea-b56)
Java HotSpot(TM) Client VM (build 1.6.0-ea-b56, mixed mode, sharing)

Exception in thread "main" java.lang.ClassCastException: com.sun.org. customer .xerces.internal.parsers.XIncludeAwareParserConfiguration cannot be cast to org. customer .xerces.xni.parser.XMLParserConfiguration
	at org. customer .xerces.parsers.SAXParser.<init>(Unknown Source)
	at org. customer .xerces.parsers.SAXParser.<init>(Unknown Source)
	at Main.main(Main.java:5)
---%<---
Posted Date : 2005-10-18 19:21:58.0

If you uncomment the call to System.setProperty in the test case, it is OK. That is because we are asking ObjectFactory's search mechanism to use an explicit impl of this interface (in fact, the same as the fallback impl).

This bug was fixed. Files under META-INF/services have been removed.
Posted Date : 2005-12-08 16:27:47.0