RFR: JAXP in JDK8/7u40 : 8022548 : SPECJVM2008 has errors introduced in 7u40-b34

[Alan Bateman]

On 10/08/2013 00:55, huizhe wang wrote:
> :
>
> It's not using a standard interface.  It goes straight to the 
> implementation, here's how it's done:
>     class JDK15XML1_0Parser extends SAXParser {
>
>         JDK15XML1_0Parser() throws org.xml.sax.SAXException {
>
>             super(new DTDConfiguration());
>             // workaround for Java 1.5 beta 2 bugs
> com.sun.org.apache.xerces.internal.util.SecurityManager manager =
>                     new 
> com.sun.org.apache.xerces.internal.util.SecurityManager();
>             setProperty(Constants.XERCES_PROPERTY_PREFIX + 
> Constants.SECURITY_MANAGER_PROPERTY, manager);
>
>         }
>     }
>
> where:
> SAXParser is com.sun.org.apache.xerces.internal.parsers.SAXParser
> DTDConfiguration is 
> com.sun.org.apache.xerces.internal.parsers.DTDConfiguration
>
Okay, I see it now:

$ jdeps --verbose-level=class xom-1.2.10.jar |grep "JDK internal API"
       -> com.sun.org.apache.xerces.internal.parsers.DTDConfiguration 
JDK internal API (rt.jar)
       -> com.sun.org.apache.xerces.internal.parsers.SAXParser JDK 
internal API (rt.jar)
       -> com.sun.org.apache.xerces.internal.util.SecurityManager JDK 
internal API (rt.jar)
       -> 
com.sun.org.apache.xerces.internal.xni.parser.XMLParserConfiguration JDK 
internal API (rt.jar)

In that case, this is not really a bug, it's that XOM needs to realize 
that extending com.sun.org.apache.xerces.internal.** means they have a 
dependency on JDK internal classes so they can break at any time. Also 
as com.sun.org.apache.xerces.internal.** is on the restricted package 
list then I assume they have problems running with a security manager.

I wasn't aware that SPECjvm2008 uses XOM. Unless XOM is fixed then I can 
imagine this causing problems in the future, in particular if/when 
visibility of JDK internal classes is restricted.

-Alan