OpenSAML user discussion

["Prasanna Krishna" <>]

Hello -

To answer the question of Paul, yes I to start with having 
java.endorsed.dirs as shown below:

---
-verbose -Xdebug 
-Xrunjdwp:transport=dt_socket,address=8000,server=y,suspend=n 
-Dcom.ebay.jni.JniDirectory=C:\apache-tomcat-5.5.17\shared\lib 
-Djava.library.path=C:\apache-tomcat-5.5.17\shared\lib 
-Djava.endorsed.dirs="C:\apache-tomcat-5.5.17\common\endorsed" -classpath 
"C:\apache-tomcat-5.5.17\shared\lib\classes12-v10g.zip;C:\apache-tomcat-5.5.17\bin\bootstrap.jar" 
-Dcatalina.base="C:\apache-tomcat-5.5.17" 
-Dcatalina.home="C:\apache-tomcat-5.5.17"
---

I also tried having endorsed folder under jre/lib.

> From: Chad La Joie 
> <>
> Date: Fri, 13 Jul 2007 16:32:38 -0400
>
> The verbose output of the class loader has nothing to do with whether 
> classes are endorsed.  It just means that the class loader has loaded those 
> particular classes.  Sun's classes are probably used internally by some of 
> Sun's code.

Fine.  The reason I said the xerces/xalan were endorsed because when I 
removed these 2 from apache/common/endorsed and web-inf/lib, it complained 
as I mentioned earlier.  When I have these in respective folders, it 
wouldn't complain which means openSAML is able to find xerces/xalan from 
common/endorsed.

> Putting libraries in the WEB-INF/lib directory also doesn't endorse them 
> (in fact it can mess up and endorsement).

I tried both the ways.  The place where it is blowing off is the same.

I further closely monitored the path and it looks like it is blowing at

TransformerFactoryImpl.newTransformer() - Line 821
at ValidatorImpl.process(DOMSource, DOMResult) - no source
at ValidatorImpl.validate(Source,Result) - no source
at ValidatorImpl(Validator).validate(Source) - no source

> What documentation, for your servlet container are you following to do the 
> endorsement?

http://tomcat.apache.org/tomcat-5.5-doc/class-loader-howto.html - Section 
(Class Loader Definitions)

Regards
Prasanna Krishna

> Prasanna Krishna wrote:
> > Hello -
> >
> > Further to what I stated in my mail, I tried the following:
> >
> > I removed xercesImpl.jar (size:1196 KB) from apache/common/endorsed and 
> > also apache/..web-inf/lib to check if SUN's xerces is being picked up and 
> > whats the behavior.
> >
> > I got the fatal message from openSAML as
> >
> > ---
> >
> > OpenSAML requires an xml parser that supports JAXP 1.3 and DOM3.
> > The JVM is currently configured to use the Sun XML parser, which is known
> > to be buggy and can not be used with OpenSAML.  Please endorse a 
> > functional
> > JAXP library(ies) such as Xerces and Xalan.  For instructions on how to 
> > endorse
> > a new parser see 
> > http://java.sun.com/j2se/1.5.0/docs/guide/standards/index.html
> >
> > ---
> >
> > This looks to me that xerces is being properly endorsed when I place the 
> > same in endorsed folder.  So my question is why then I am finding 
> > com.sun.org.apache..... entries in my verbose output.
> >
> > The place where it blows of is
> > at ValidatorImpl.process(DOMSource, DOMResult)
> > at ValidatorImpl.validate(Source,Result)
> > at ValidatorImpl(Validator).validate(Source)
> >
> > Am I not adding any other required jar files to apache/web-inf/lib or am 
> > missing something in the process.
> >
> > Any input is greatly appreciated.
> >
> > Regards
> > Prasanna Krishna
> >
> > > From: "Prasanna Krishna" 
> > > <>
> > > Date: Fri, 13 Jul 2007 04:13:18 +0000
> > >
> > > Hi Chad -
> > >
> > > Probably I was not clear.
> > >
> > > When I said
> > >
> > > > > DefaultBootStrap.bootstrap but this time it wouldn't throw the 
> > > > > exception reported in this mail.
> > >
> > > I meant a similar thread where Perez found the exception
> > > https://mail.internet2.edu/wws/arc/mace-opensaml-users/2007-06/msg00019.html
> > >
> > >
> > > I was getting this exception but once I picked up the latest xalan & 
> > > xerces from apache site this exception no longer occurs but when I 'step 
> > > in' in eclipse at bootstrap() method, it drills down till a point where 
> > > validation of XML is being done.  Surprisingly though I have put an 
> > > exception block & printing stack trace nothing is reported (which earlier 
> > > was being reported when using older versions of xerces/xalan).
> > >
> > > I thought probably any of the libraries required may be missing but I 
> > > wouldn't find NoClassFound too in the console.
> > >
> > > When I said it doesn't do anything I meant, it skips all the statements 
> > > after bootstrap() statement in my method and comes out of the program 
> > > without reporting anything.
> > >
> > > The examples I pasted in my mail is to just provide an info that xerces & 
> > > xalan of apache endoresed folder are indeed being picked up.
> > >
> > > My assumption is, at few places classes from apache xerces being picked 
> > > up but at few other places classes from sun is picked up.
> > >
> > > Hope I could provide better info.
> > >
> > > Regards
> > > Prasanna Krishna
> > >
> > > > From: Chad La Joie 
> > > > <>
> > > > Date: Thu, 12 Jul 2007 23:07:57 -0400
> > > >
> > > > JAXP is an interface, Xerces + Xalan happen to provide one 
> > > > implementation (the only one which we know works).  Sun happens to ship 
> > > > a pre-alpha release of a really old version of Xerces which is the 
> > > > com.sun.org.apache.... classes.  These are horribly broken and fail on 
> > > > anything but the simplest of XML parsing use cases.
> > > >
> > > > If you see com.sun.org.apache...  classes being used then Apache 
> > > > released and maintained versions of Xerces and Xalan are not being used.
> > > >
> > > > At the moment you seem to be providing contradictory information.  You 
> > > > said that it "just doesn't do anything" and then "looks like it fails 
> > > > while validating".  Is there some error you are seeing that you didn't 
> > > > include?  The loading of classes that you included is not a problem in 
> > > > and of itself, the JVM will load thousands of classes as it runs.
> > > >
> > > >
> > > >  wrote:
> > > > > Hello -
> > > > >
> > > > > While working with openSAML I still have some problem at 
> > > > > DefaultBootStrap.bootstrap but this time it wouldn't throw the 
> > > > > exception reported in this mail.  It just doesn't do anything after 
> > > > > reaching a specific point in the stack.  But looks like it still fails 
> > > > > while validating the XML.
> > > > >
> > > > > Also I switched on the verbose and this is what I find:
> > > > > First few lines:
> > > > >
> > > > > [Opened C:\apache-tomcat-5.5.17\common\endorsed\xalan.jar]
> > > > > [Opened C:\apache-tomcat-5.5.17\common\endorsed\xercesImpl.jar]
> > > > > [Opened C:\Program Files\Java\jre1.5.0_07\lib\rt.jar]
> > > > > .....
> > > > >
> > > > > I find many classes loaded from xerces - An exmaple
> > > > > [Loaded org.apache.xerces.jaxp.SAXParserFactoryImpl from 
> > > > > C:\apache-tomcat-5.5.17\common\endorsed\xercesImpl.jar]
> > > > >
> > > > > I also find many classes loaded from xalan - An example
> > > > > [Loaded org.apache.xalan.processor.TransformerFactoryImpl from 
> > > > > C:\apache-tomcat-5.5.17\common\endorsed\xalan.jar]
> > > > >
> > > > > I also find many classes loaded from rt.jar that are related to xml 
> > > > > validation
> > > > > Ex:
> > > > > [Loaded 
> > > > > com.sun.org.apache.xerces.internal.jaxp.validation.ValidatorImpl from 
> > > > > C:\Program Files\Java\jre1.5.0_07\lib\rt.jar]
> > > > > [Loaded 
> > > > > com.sun.org.apache.xerces.internal.jaxp.validation.ValidatorImpl$1 from 
> > > > > C:\Program Files\Java\jre1.5.0_07\lib\rt.jar]
> > > > > [Loaded 
> > > > > com.sun.org.apache.xerces.internal.jaxp.validation.ValidatorImpl$2 from 
> > > > > C:\Program Files\Java\jre1.5.0_07\lib\rt.jar]
> > > > >
> > > > >
> > > > > Is this behavior correct?
> > > > > I read 
> > > > > http://www.ibm.com/developerworks/xml/library/x-javaxmlvalidapi.html 
> > > > > that jaxp is bundled with xerces.
> > > > >
> > > > > Am I missing something which needs to be resolved?
> > > > >
> > > > > I appreciate any help.
> >
> > _________________________________________________________________
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> --
> Chad La Joie             2052-C Harris Bldg
> OIS-Middleware           202.687.0124

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