Common BEA WebLogic 8.1 Exceptions

The following are a few of the most common exceptions you may encounter when deploying JAR files with TopLink and BEA WebLogic Server 8.1.

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:
Persistence type 'TopLink_CMP_2_0' with version 'X.0 which is referenced in bean 'Account' is not installed. The installed persistence types are: (WebLogic_CMP_RDBMS, 7.0), (WebLogic_CMP_RDBMS, 6.0), (WebLogic_CMP_RDBMS, 5.1.0).; Action: In the <WebLogic InstallDir>/weblogic81/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.

Missing CMP entry in Persistence File: 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: ejbc couldn't invoke compiler; Action: In the <WebLogic InstallDir>/weblogic81/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:
Error occurred while loading persistence resource TopLink_CMP_Descriptor.xml. Make sure that the persistence type is in your classpath.

ERROR: ejbc couldn't invoke compiler; Action: Ensure that the classpath includes the <ORACLE_HOME>/toplink/jlib/toplink.jar file.

Wrong WebLogic Version: Cause: You are trying to compile your EJB JAR file using BEA WebLogic Server 7.0. The exception message returned is:
ERROR: ejbc found errors while processing the descriptor for std_cmp20-singlebean.jar:ERROR: ejbc found errors while processing 'META-INF/weblogic-ejb-jar.xml': The public id, "-//BEA Systems, Inc.//DTD WebLogic 8.1.0 EJB//EN", specified in the XML document is invalid. Use one of the following valid public ids:"-//BEA Systems, Inc.//DTD WebLogic 5.1.0 EJB//EN""-//BEA Systems, Inc.//DTD WebLogic 6.0.0 EJB//EN""-//BEA Systems, Inc.//DTD WebLogic 7.0.0 EJB//EN"ERRORejbc found errors; Action: Compile using BEA WebLogic Server 8.1.

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:
Error Deployer BEA-149201 Failed to complete the deployment task with ID 0 for the application _appsdir_cmp20-singlebean_ear. weblogic.management.ApplicationException: Exception:weblogic.management.ApplicationException: prepare failed for cmp20-singlebean.jarModule: cmp20-singlebean.jar Error: Exception preparing module: EJBModule(cmp20-singlebean.jar,status=NEW)Persistence type 'TopLink_CMP_2_0' with version 'X.0 which is referenced in bean 'Account' is not installed. The installed persistence types are: (WebLogic_CMP_RDBMS, 7.0), (WebLogic_CMP_RDBMS, 6.0), (WebLogic_CMP_RDBMS, 5.1.0); Action: In the <WebLogic InstallDir>/weblogic81/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:
Error Deployer BEA-149201 Failed to complete the deployment task with ID 2 for the application _appsdir_cmp20-relationships_ear.weblogic.management.ApplicationException: Exception:weblogic.management.ApplicationException: prepare failed for cmp20-relationships.jarModule: cmp20-relationships.jar Error: Exception preparing module: EJBModule(cmp20-relationships.jar,status=NEW) Unable to deploy EJB:.\TopLink_Demos\stage\_appsdir_cmp20-relationships_ear\cmp20-relationships.jar from cmp20-relationships.jar: [EJB:011004]Error occurred while loading persistence resource TopLink_CMP_Descriptor.xml. Make sure that the persistence type is in your classpath.at weblogic.ejb20.persistence.InstalledPersistence.initialize(InstalledPersistence.java:212)at weblogic.ejb20.persistence.InstalledPersistence.getInstalledType(InstalledPersistence.java:114); Action: Ensure that the classpath includes the <ORACLE_HOME>/toplink/jlib/toplink.jar file.