Java Development Tools

Hi

We are using 10.1.3.4 SOA n JDev. The MWP files are not opening in Jdev and while opening the project we are getting errors with the following log:

java.lang.RuntimeException: java.lang.ClassCastException: java.lang.String
at oracle.toplink.addin.manager.MWJDeveloperMediator.openTopLinkProject(MWJDeveloperMediator.java:328)
at oracle.toplink.addin.manager.MWJDeveloperMediator.openTopLinkProjects(MWJDeveloperMediator.java:271)
at oracle.toplink.addin.appnav.TopLinkProjectChangeListener.projectOpened(TopLinkProjectChangeListener.java:93)
at oracle.ide.model.Project$StorageListener.fireProjectOpened(Project.java:1168)
at oracle.ide.model.Project$StorageListener.mav$fireProjectOpened(Project.java:1135)
at oracle.ide.model.Project$NL.nodeOpened(Project.java:1127)
at oracle.ide.model.Node.fireNodeOpened(Node.java:1139)
at oracle.ide.model.Node.open(Node.java:573)
at oracle.ide.model.Node.ensureOpen(Node.java:976)
at oracle.ide.model.DataContainer$2.run(DataContainer.java:147)
at oracle.ide.model.Node.runWhileSynchronized(Node.java:809)
at oracle.ide.model.DataContainer.getSharedPropertiesOnly(DataContainer.java:152)
at oracle.ide.model.Project.getPropertiesImpl(Project.java:1097)
at oracle.ide.model.Project.getProperties(Project.java:323)
at oracle.ide.model.ProjectContent.getInstance(ProjectContent.java:122)
at oracle.ide.model.ContentLevel.initChildren(ContentLevel.java:88)
at oracle.ide.model.ContentSetFilter.initChildren(ContentSetFilter.java:28)
at oracle.ide.model.ContentFilter.getChildrenImpl(ContentFilter.java:121)
at oracle.ide.model.ContentFilter.getChildren(ContentFilter.java:64)
at oracle.ideimpl.explorer.BaseTreeExplorer.addChildren(BaseTreeExplorer.java:360)
at oracle.ideimpl.explorer.BaseTreeExplorer.open(BaseTreeExplorer.java:872)
at oracle.ideimpl.explorer.BaseTreeExplorer$2.run(BaseTreeExplorer.java:1788)
at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:209)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:461)
at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:242)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:163)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:157)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:149)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:110)
Caused by: java.lang.ClassCastException: java.lang.String
at oracle.toplink.mappings.foundation.AbstractCompositeCollectionMapping.valueFromRow(AbstractCompositeCollectionMapping.java:727)
at oracle.toplink.mappings.DatabaseMapping.readFromRowIntoObject(DatabaseMapping.java:1045)
at oracle.toplink.internal.descriptors.ObjectBuilder.buildAttributesIntoObject(ObjectBuilder.java:244)
at oracle.toplink.internal.descriptors.ObjectBuilder.buildObject(ObjectBuilder.java:525)
at oracle.toplink.internal.descriptors.ObjectBuilder.buildObject(ObjectBuilder.java:381)
at oracle.toplink.internal.descriptors.ObjectBuilder.buildObjectsInto(ObjectBuilder.java:677)
at oracle.toplink.internal.queryframework.DatabaseQueryMechanism.buildObjectsFromRows(DatabaseQueryMechanism.java:142)
at oracle.toplink.queryframework.ReadAllQuery.executeObjectLevelReadQuery(ReadAllQuery.java:483)
at oracle.toplink.queryframework.ObjectLevelReadQuery.executeDatabaseQuery(ObjectLevelReadQuery.java:812)
at oracle.toplink.queryframework.DatabaseQuery.execute(DatabaseQuery.java:620)
at oracle.toplink.queryframework.ObjectLevelReadQuery.execute(ObjectLevelReadQuery.java:780)
at oracle.toplink.queryframework.ReadAllQuery.execute(ReadAllQuery.java:451)
at oracle.toplink.publicinterface.Session.internalExecuteQuery(Session.java:2089)
at oracle.toplink.publicinterface.Session.executeQuery(Session.java:993)
at oracle.toplink.internal.indirection.NoIndirectionPolicy.valueFromQuery(NoIndirectionPolicy.java:262)
at oracle.toplink.mappings.ForeignReferenceMapping.valueFromRow(ForeignReferenceMapping.java:1151)
at oracle.toplink.mappings.DatabaseMapping.readFromRowIntoObject(DatabaseMapping.java:1045)
at oracle.toplink.internal.descriptors.ObjectBuilder.buildAttributesIntoObject(ObjectBuilder.java:244)
at oracle.toplink.internal.descriptors.ObjectBuilder.buildObject(ObjectBuilder.java:525)
at oracle.toplink.internal.descriptors.ObjectBuilder.buildObject(ObjectBuilder.java:381)
at oracle.toplink.queryframework.ObjectLevelReadQuery.buildObject(ObjectLevelReadQuery.java:456)
at oracle.toplink.queryframework.ReadObjectQuery.executeObjectLevelReadQuery(ReadObjectQuery.java:424)
at oracle.toplink.queryframework.ObjectLevelReadQuery.executeDatabaseQuery(ObjectLevelReadQuery.java:812)
at oracle.toplink.queryframework.DatabaseQuery.execute(DatabaseQuery.java:620)
at oracle.toplink.queryframework.ObjectLevelReadQuery.execute(ObjectLevelReadQuery.java:780)
at oracle.toplink.queryframework.ReadObjectQuery.execute(ReadObjectQuery.java:388)
at oracle.toplink.publicinterface.Session.internalExecuteQuery(Session.java:2089)
at oracle.toplink.publicinterface.Session.executeQuery(Session.java:993)
at oracle.toplink.publicinterface.Session.executeQuery(Session.java:950)
at oracle.toplink.publicinterface.Session.readObject(Session.java:2591)
at oracle.toplink.workbench.ui.WorkbenchSession.getMWProjectNamed(WorkbenchSession.java:76)
at oracle.toplink.addin.persistence.MWJDeveloperPersistence.open(MWJDeveloperPersistence.java:234)
at oracle.toplink.addin.manager.MWJDeveloperMediator.openTopLinkProject(MWJDeveloperMediator.java:323)
... 28 more

Please provide inputs for the resolution of this as the DB Adapter wizards are not showing proper configuration and we want to do some changes in the DB adapter setup.

Thanks