Hi Otuoma,
this problem has been reported here:
https://jira.duraspace.org/browse/DS-1609
The root cause was an incompatibility with OAI and Java 6. The original
workaround was to use Java 7, however, the log of the problem shows that it
was eventually fixed for Java 6 as well in DSpace 3.2.
In this context, it is very strange that you are experiencing this problem
in DSpace 3.2.
Can you try the following:
- rebuild DSpace with mvn clean package to ensure that you get the latest
libraries for OAI
- Switch between Java 6 and 7 to see if this makes a difference
If this still doesn't resolve your problem, please report back with the
list of JARs in your deployed OAI Webapp. You should be able to find them in
/oai/WEB-INF/lib in the folder where your deployed Tomcat webapps live.
best regards,
Bram Luyten
--
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*Bram Luyten* *@mire*
*2888 Loker Avenue East, Suite 315, Carlsbad, CA. 92010*
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On Sun, Dec 29, 2013 at 9:53 AM, Otuoma <otuomathegr...@yahoo.com> wrote:
> I have a problem enabling oai feature on my dspace version 3.2. The error i
> get when i access http://my-dspace-url/oai/request?verb=Identify is :
> -------------------------begin-------------------------------
> javax.servlet.ServletException: Error instantiating servlet class
> org.dspace.xoai.DSpaceOAIDataProvider
>
>
> org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
>
> org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
>
> org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:857)
>
>
> org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588)
>
> org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
> java.lang.Thread.run(Thread.java:679)
>
> root cause
>
> java.lang.UnsupportedClassVersionError:
> com/lyncode/xoai/dataprovider/exceptions/ConfigurationException :
> Unsupported major.minor version 51.0 (unable to load class
> com.lyncode.xoai.dataprovider.exceptions.ConfigurationException)
>
>
> org.apache.catalina.loader.WebappClassLoader.findClassInternal(WebappClassLoader.java:2726)
>
>
> org.apache.catalina.loader.WebappClassLoader.findClass(WebappClassLoader.java:1124)
>
>
> org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1612)
>
>
> org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1491)
> java.lang.Class.getDeclaredConstructors0(Native Method)
> java.lang.Class.privateGetDeclaredConstructors(Class.java:2406)
> java.lang.Class.getConstructor0(Class.java:2716)
> java.lang.Class.newInstance0(Class.java:343)
> java.lang.Class.newInstance(Class.java:325)
>
>
> org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
>
> org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
>
> org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:857)
>
>
> org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588)
>
> org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
> java.lang.Thread.run(Thread.java:679)
> -----------------------------end--------------------
> I have upgraded my java version from openjdk1.6 to oracle's 1.7.0_45 as
> suggested in several places I have searching while troubleshooting this
> issue.
> I am also able to successfully run [dspace]/bin/dspace oai import -c
> command.
> Am not sure if its supposed to be there but I have also checked and
> realised
> that I do not have "xoai-3.0.0.jar" file in /dspace/lib folder.
>
> Any help is greatly appreciated. My dspace is version 3.2
>
>
>
>
>
> --
> View this message in context:
> http://dspace.2283337.n4.nabble.com/Problem-enabling-OAI-data-provider-feature-tp4670004.html
> Sent from the DSpace - Tech mailing list archive at Nabble.com.
>
>
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