OpenSAML user discussion

[Chad La Joie <>]

That's very odd.  I don't think I've made any changes to that code since 
Alpha 1 came out....  weird.

Paul Hethmon wrote:
> To follow up on this so the list has a record.
>
> I switched to Java 1.6 and received an extended message which indicated
> "found interface when class was expected". My original code referenced
> ParserPool (interface). However, changing to BasicParserPool still
> generated that same error message. I had a friend try it and it worked
> for him. The only difference in our environments being that he
> downloaded the lastest code from svn. So today I updated the opensaml
> code, built it all with 1.6, and rebuilt my test code against it. That
> worked.
>
> The original OpenSAML library code I was using was straight Alpha1.
>
> thanks,
>
> Paul
>
> -----Original Message-----
> From: Paul Hethmon [mailto:] 
> Sent: Friday, July 06, 2007 3:05 PM
> To: 
>
> Subject: RE: FileBackedURLMetadataProvider -->
> java.lang.IncompatibleClassChangeError
>
> Ok. So now I have the same message on both WinXP and Mac OS10. This is
> just a little test program to explore the FileBackedURLMetadataProvider
> class. I've removed all JVM's on my win box and installed 1.5 update 12.
> Program compiled and run with Xalan and Xerces in the endorsed
> directories. Here's the class with imports and comments taken out (the
> url is valid if anyone wants to try it):
>
> // ----- begin code -----
> public class Main {
>   
>   private static ParserPool parser;
>   
>   public Main() {
>   }
>   
>   public static void main(String[] args) throws
> MetadataProviderException, ConfigurationException {
>     org.opensaml.DefaultBootstrap.bootstrap();
>     
>     String metaUrl = "http://red.csknox.com/idp-meta.xml";;
>     String metaFile = "C:\\Clareity\\dev\\idp-meta.xml";
>     System.out.println("Reading metadata url: " + metaUrl);
>     
>     FileBackedURLMetadataProvider fbmd;
>     
>     fbmd = new FileBackedURLMetadataProvider(metaUrl, 60000, metaFile);
>     fbmd.setParserPool(parser);
>     fbmd.initialize();
>     XMLObject xml;
>     xml = fbmd.getMetadata();
>   }
>   
> }
> // ----- end code -----
>
> I run it with this in a cmd file:
>
> set JAVA_HOME="C:\Program Files\Java\jre1.5.0_12"
> set CLASSPATH=
> "C:\Program Files\Java\jre1.5.0_12\bin\java.exe"
> "-Djava.endorsed.dirs=C:\Program
> Files\Java\jre1.5.0_12_endorsed\lib\endorsed" -jar ".\dist\MetaTest.jar"
>
> The output is:
>
> -----
>
> C:\Clareity\dev\OpenSAML\MetaTest>"C:\Program
> Files\Java\jre1.5.0_12\bin\java.exe" "-Djava.endorsed.dirs=C:\Program
> File
> s\Java\jre1.5.0_12_endorsed\lib\endorsed" -jar ".\dist\MetaTest.jar"
> log4j:WARN No appenders could be found for logger
> (org.opensaml.DefaultBootstrap).
> log4j:WARN Please initialize the log4j system properly.
> Reading metadata url: http://red.csknox.com/idp-meta.xml
> Exception in thread "main" java.lang.IncompatibleClassChangeError
>         at
> org.opensaml.saml2.metadata.provider.AbstractMetadataProvider.unmarshall
> Metadata(AbstractMetadataProvider.jav
> a:159)
>         at
> org.opensaml.saml2.metadata.provider.URLMetadataProvider.fetchMetadata(U
> RLMetadataProvider.java:289)
>         at
> org.opensaml.saml2.metadata.provider.FileBackedURLMetadataProvider.fetch
> Metadata(FileBackedURLMetadataProvide
> r.java:96)
>         at
> org.opensaml.saml2.metadata.provider.URLMetadataProvider.refreshMetadata
> (URLMetadataProvider.java:231)
>         at
> org.opensaml.saml2.metadata.provider.URLMetadataProvider.initialize(URLM
> etadataProvider.java:106)
>         at metatest.Main.main(Main.java:46)
> -----
>
> The only thing I can think of to try at this point is to re-compile all
> of the third party jar files like javolution, apache commons, etc.
>
> Any clues, good, bad, or ugly appreciated.
>
> thanks,
>
> Paul

--
Chad La Joie             2052-C Harris Bldg
OIS-Middleware           202.687.0124