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
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