Opensso configuration failure - case 2 - UnsupportedClassVersionError

The upcoming express build, build 8 ( as well as the available nightly's) now support only jdk6 at the opensso server container.

This is the exception you see when configuring with jdk5

Symptom:
-----------
Opensso configuration fails

--> Configuration fails at
Checking configuration directory /export/isqa/SJSWS/opensso-8080....Success.
Installing OpenSSO configuration store...Success RSA/ECB/OAEPWithSHA1AndMGF1Padd
ing.
Installing OpenSSO configuration store in /export/isqa/SJSWS/opensso-8080/opends
...Success.
Creating OpenSSO suffix...Success.
Tag swapping schema files....Success.
Loading Schema opends_config_schema.ldif...Success.
Loading Schema opends_user_schema.ldif...Success.
Loading Schema opends_embinit.ldif...Success.
Loading Schema opends_user_index.ldif...Success.
Loading Schema opends_plugin.ldif...Success.
...Success.
Reinitializing system properties.AMSetupServlet.processRequest: errorcom.sun.ide
ntity.security.AMSecurityPropertiesException: AdminTokenAction: FATAL ERROR: Ca
nnot obtain Application SSO token.
Check AMConfig.properties for the following properties
com.sun.identity.agents.app.username
com.iplanet.am.service.password
at com.sun.identity.security.AdminTokenAction.run(AdminTokenAction.java:
258)
at java.security.AccessController.doPrivileged(Native Method)
at com.sun.identity.security.AdminTokenAction.run(AdminTokenAction.java:
258)
at java.security.AccessController.doPrivileged(Native Method)
at com.iplanet.am.util.SystemProperties.initializeProperties(SystemPrope
rties.java:450)
at com.sun.identity.setup.AMSetupServlet.reInitConfigProperties(AMSetupS

--> {config dir}/opensso/debug/Configuration shows
amSMS:07/21/2009 02:20:35:953 PM PDT: Thread[service-j2ee-5,5,main]
ERROR: SMSObjectDB: Unable to get amsdkbasedn:

Got LDAPServiceException code=19
at com.iplanet.services.ldap.DSConfigMgr.getDSConfigMgr(DSConfigMgr.java
:162)
at com.sun.identity.sm.SMSObjectDB.getAMSdkBaseDN(SMSObjectDB.java:58)
at com.sun.identity.sm.SMSObjectDB.getRootSuffix(SMSObjectDB.java:112)
at com.sun.identity.sm.ldap.SMSLdapObject.initialize(SMSLdapObject.java:
201)
.....................

The lower level exception message
Connection to the server could not be established
The lower level exception:
com.sun.identity.shared.ldap.LDAPException: Connection to the server could not b
e established (-1)

--> /opends/logs dont report any exception

--> Container logs says "java.lang.UnsupportedClassVersionError: PWC1651: Class com.sun.identity.idsvcs.I
dentityServicesImpl has unsupported major or minor version numbers, which are gr
eater than those found in the Java Runtime Environment version 1.5.0_15
"

So this is the culprit - JDK container is using is - 1.5.0_15

Solution:
-----------
Upgrade container jdk to jdk6 and reconfigure

Other configuration Issues:
http://nithyastechnotes.blogspot.com/2009/07/opensso-configuration-failure-case-1.html
http://nithyastechnotes.blogspot.com/2009/07/opensso-deployment-issue-in-geronimo.html