Solution: Unable to run OAF Page from JDeveloper 505 Error

I was usually able to run the OAF pages from JDeveloper without any issues, but after trying to install a oracle database in the c:\oracle folder some settings were messed up, resulting in 505 Error when OAF pages were run.

Fix: to fix this I have gone through the log (the log section we have in the JDeveloper itself) carefully and found what the issue is..




C:\p9879989_R12_GENERIC\jdevhome\jdev\system\oracle.j2ee.10.1.3.41.57\embedded-oc4j\config\server.xml
[waiting for the server to complete its initialization...]
Nov 11, 2015 7:49:23 PM com.evermind.server.jms.JMSMessages log
INFO: JMSServer[]: OC4J JMS server recovering transactions (commit 0) (rollback 0) (prepared 0).
Nov 11, 2015 7:49:23 PM com.evermind.server.jms.JMSMessages log
INFO: JMSServer[]: OC4J JMS server recovering local transactions Queue[jms/Oc4jJmsExceptionQueue].
WARNING: Code-source C:\p9879989_R12_GENERIC\jdevbin\jdev\appslibrt\xml.jar (from in /C:/p9879989_R12_GENERIC/jdevhome/jdev/system/oracle.j2ee.10.1.3.41.57/embedded-oc4j/config/application.xml) has the same filename but is not identical to /C:/p9879989_R12_GENERIC/jdevbin/lib/xml.jar (from (ignore manifest Class-Path) in META-INF/boot.xml in C:\p9879989_R12_GENERIC\jdevbin\j2ee\home\oc4j.jar). If it contains different versions of the same classes, it will be masked as the latter is already visible in the search path of loader default.root:0.0.0.
WARNING: Code-source C:\p9879989_R12_GENERIC\jdevbin\jdev\appslibrt\jazn.jar (from in /C:/p9879989_R12_GENERIC/jdevhome/jdev/system/oracle.j2ee.10.1.3.41.57/embedded-oc4j/config/application.xml) has the same filename but is not identical to /C:/p9879989_R12_GENERIC/jdevbin/j2ee/home/jazn.jar (from in META-INF/boot.xml in C:\p9879989_R12_GENERIC\jdevbin\j2ee\home\oc4j.jar). If it contains different versions of the same classes, it will be masked as the latter is already visible in the search path of loader default.root:0.0.0.
WARNING: Code-source C:\p9879989_R12_GENERIC\jdevbin\jdev\appslibrt\jazncore.jar (from manifest of /C:/p9879989_R12_GENERIC/jdevbin/jdev/appslibrt/jazn.jar) has the same filename but is not identical to /C:/p9879989_R12_GENERIC/jdevbin/j2ee/home/jazncore.jar (from in META-INF/boot.xml in C:\p9879989_R12_GENERIC\jdevbin\j2ee\home\oc4j.jar). If it contains different versions of the same classes, it will be masked as the latter is already visible in the search path of loader default.root:0.0.0.
WARNING: Code-source C:\oracle\lib\xmlparserv2.jar (from manifest of /C:/p9879989_R12_GENERIC/jdevbin/jdev/appslibrt/jazncore.jar) has the same filename but is not identical to /C:/p9879989_R12_GENERIC/jdevbin/lib/xmlparserv2.jar (from (ignore manifest Class-Path) in META-INF/boot.xml in C:\p9879989_R12_GENERIC\jdevbin\j2ee\home\oc4j.jar). If it contains different versions of the same classes, it will be masked as the latter is already visible in the search path of loader default.root:0.0.0.
WARNING: Code-source C:\oracle\jlib\ldapjclnt10.jar (from manifest of /C:/p9879989_R12_GENERIC/jdevbin/jdev/appslibrt/jazncore.jar) has the same filename but is not identical to /C:/p9879989_R12_GENERIC/jdevbin/jlib/ldapjclnt10.jar (from in META-INF/boot.xml in C:\p9879989_R12_GENERIC\jdevbin\j2ee\home\oc4j.jar). If it contains different versions of the same classes, it will be masked as the latter is already visible in the search path of loader default.root:0.0.0.
15/11/11 19:49:26 WARNING: Application.setConfig Application: datatags is in failed state as initialization failed.
java.lang.IllegalAccessError: tried to access method oracle.xml.jaxp.JXDocumentBuilder.()V from class oracle.xml.jaxp.JXDocumentBuilderFactory
Nov 11, 2015 7:49:26 PM com.evermind.server.ServerMessages warningApplicationInitializationFailed
WARNING: Exception initializing deployed application: datatags. Application: datatags is in failed state as initialization failed
Nov 11, 2015 7:49:26 PM com.evermind.server.ServerMessages warningApplicationInitializationFailed
WARNING: Exception initializing deployed application: APPS_OA. Application: APPS_OA is in failed state as initialization failed
15/11/11 19:49:26 WARNING: Application.setConfig Application: APPS_OA is in failed state as initialization failed.
java.lang.IllegalAccessError: tried to access method oracle.xml.jaxp.JXDocumentBuilder.()V from class oracle.xml.jaxp.JXDocumentBuilderFactory
15/11/11 19:49:26 WARNING: Application.setConfig Application: current-workspace-app is in failed state as initialization failed.
java.lang.IllegalAccessError: tried to access method oracle.xml.jaxp.JXDocumentBuilder.()V from class oracle.xml.jaxp.JXDocumentBuilderFactory
Nov 11, 2015 7:49:26 PM com.evermind.server.ServerMessages warningApplicationInitializationFailed
WARNING: Exception initializing deployed application: current-workspace-app. Application: current-workspace-app is in failed state as initialization failed
Nov 11, 2015 7:49:27 PM com.evermind.server.http.HttpMessages internalErrorWhileTryingToInstantiate
SEVERE: Internal error raised tyring to instantiate web-application: webapp defined in web site OC4J 10g (10.1.3) Default Web Site. Application: webapp has been stopped
Upon looking it carefully, I found in those warning that the file version were not the same and copied the ones from jdev to c:\oracle and everything is back!!

Thanks,
Sridhar