Common BEA WebLogic Server 6.1 Exceptions

The following are a few of the most common exceptions you may encounter when deploying JAR files with TopLink and BEA WebLogic Server 6.1:

Development Exceptions

Missing Persistence Type: Cause: There is no entry in the persistence.install file for TopLink CMP. This may occur if the TopLink installation was interrupted or a BEA WebLogic Server Service Pack was applied. The exception message returned is:
ERROR: Error from ejbc: Persistence type 'TopLink_CMP_2_0' with version 'X.X which is referenced in bean 'Account' is not installed. The installed persistence types are: (WebLogic_CMP_RDBMS, 6.0), (WebLogic_CMP_RDBMS, 5.1.0).ERROR: ejbc found errors; Action: In the <WebLogic InstallDir>/wlserver6.1/lib/persistence directory, edit the persistence.install file to add a new line TopLink_CMP_Descriptor.xml, or replace your existing persistence.install file with the version of the file in the <ORACLE_HOME>/toplink/config directory.

Error Loading Persistence Resource: Cause: The toplink.jar file is not properly set in your classpath. The exception message returned is:
Error while loading persistence resource TopLink_CMP_Descriptor.xml Make sure that the persistence type is in your classpath.; Action: Ensure that the classpath includes the <ORACLE_HOME>/toplink/jlib/toplink.jar file.

Wrong BEA WebLogic Version: Cause: You are trying to compile your code using BEA WebLogic Server 6.0. The exception message returned is:
C:\<ORACLE_HOME>\toplink\examples\weblogic\wls61\ examples\ejb\cmp20\singlebean\Account.java:10: cannot resolve symbolsymbol : class EJBLocalObjectlocation: interface examples.ejb.cmp20.singlebean.Accountpublic interface Account extends EJBLocalObject {; Action: Compile using BEA WebLogic Server 6.1.

Missing Persistence Type: Cause: There is no entry in the persistence.install file for TopLink CMP. This may occur if the TopLink installation was interrupted, or a BEA WebLogic Server Service Pack was applied. The exception message returned is:
Persistence type 'TopLink_CMP_2_0' with version 'X.X which is referenced in bean 'Account' is not installed. The installed persistence types are: (WebLogic_CMP_RDBMS, 6.0), (WebLogic_CMP_RDBMS, 5.1.0).; Action: In the <WebLogic InstallDir>/wlserver6.1/lib/persistence directory, edit the persistence.install file to add a new line: TopLink_CMP_Descriptor.xml. You can also replace your existing persistence.install file with the version of the file in the <ORACLE_HOME>/toplink/config directory.

Error Loading Persistence Resource: Cause: The toplink.jar file is not properly set in your classpath. The exception message returned is:
<DATE and TIME> <Error> <J2EE> <Error deploying application ejb20_cmp_order:Unable to deploy EJB: C:\<ORACLE_HOME>\toplink\examples\weblogic\wls61\server\config\TopLink_Domain\applications\wlnotdelete\wlap64280\ejb20_cmp_order.jar from ejb20_cmp_order.jar:Error while loading persistence resource TopLink_CMP_Descriptor.xml Make sure that the persistence type is in your classpath.atweblogic.ejb20.persistence.InstalledPersistence.initialize(InstalledPersistence.java:214)atweblogic.ejb20.persistence.InstalledPersistence.getInstalledType(InstalledPersistence.java:113); Action: Ensure that the classpath includes the <ORACLE_HOME>/toplink/jlib/toplink.jar file.

Wrong Persistence Version: Cause: You may be using a persistence-version meant for BEA WebLogic Server 7.0. The exception message returned is:
DATE and TIME> <Error> <J2EE> <Error deploying application ejb20_cmp_account:Unable to deploy EJB: Account from ejb20_cmp_account.jar:java.lang.AbstractMethodErroratweblogic.ejb20.deployer.ClientDrivenBeanInfoImpl.deploy(ClientDrivenBeanInfoImpl.java:807)atweblogic.ejb20.deployer.Deployer.deployDescriptor(Deployer.java:1234)atweblogic.ejb20.deployer.Deployer.deploy(Deployer.java:947)atweblogic.j2ee.EJBComponent.deploy(EJBComponent.java:30); Action: Use a persistence-version of 4.0.

Cannot Start Up Data Source: Cause: An exception has occurred while setting up the data source. The exception message returned is:
EXCEPTION [TOPLINK-7060] (TopLink (WLS CMP)-X.X):oracle.toplink.exceptions.ValidationExceptionEXCEPTION DESCRIPTION: Cannot acquire datasource [jdbc/ejbNonJTSDataSource].INTERNAL EXCEPTION: javax.naming.NameNotFoundException: Unable to resolve jdbc.ejbNonJTSDataSource Resolved: '' Unresolved:'jdbc' ; remaining name 'ejbNonJTSDataSource'; Action: Check the nested SQL exception to determine the cause of the exception. For more information, see "7060: CANNOT_ACQUIRE_DATA_SOURCE". For more information on a specific exception raised by WebLogic, see the BEA WebLogic Server documentation and your JDBC driver documentation.

Wrong WebLogic Version: Cause: You are trying to compile your code using BEA WebLogic Server 6.0. The exception message returned is:
<DATE and TIME> <Error> <Management> <Error parsing XML descriptor for application TopLink_Domain:Name=ejb20_cmp_account, Type=Applicationweblogic.xml.process.ProcessorFactoryException: Could not locate processor for public id = "-//Sun Microsystems, Inc.//DTD J2EE Application 1.3//EN"atweblogic.xml.process.ProcessorFactory.getProcessor(ProcessorFactory.java:181)atweblogic.xml.process.ProcessorFactory.getProcessor(ProcessorFactory.java:164); Action: Compile using BEA WebLogic Server 6.1.