Fixes are available
7.0.0.19: WebSphere Application Server V7.0 Fix Pack 19
7.0.0.21: WebSphere Application Server V7.0 Fix Pack 21
7.0.0.23: WebSphere Application Server V7.0 Fix Pack 23
7.0.0.25: WebSphere Application Server V7.0 Fix Pack 25
7.0.0.27: WebSphere Application Server V7.0 Fix Pack 27
7.0.0.29: WebSphere Application Server V7.0 Fix Pack 29
7.0.0.31: WebSphere Application Server V7.0 Fix Pack 31
7.0.0.27: Java SDK 1.6 SR13 FP2 Cumulative Fix for WebSphere Application Server
7.0.0.33: WebSphere Application Server V7.0 Fix Pack 33
7.0.0.35: WebSphere Application Server V7.0 Fix Pack 35
7.0.0.37: WebSphere Application Server V7.0 Fix Pack 37
7.0.0.39: WebSphere Application Server V7.0 Fix Pack 39
7.0.0.41: WebSphere Application Server V7.0 Fix Pack 41
7.0.0.43: WebSphere Application Server V7.0 Fix Pack 43
7.0.0.45: WebSphere Application Server V7.0 Fix Pack 45
7.0.0.19: Java SDK 1.6 SR9 FP2 Cumulative Fix for WebSphere Application Server
7.0.0.21: Java SDK 1.6 SR9 FP2 Cumulative Fix for WebSphere
7.0.0.23: Java SDK 1.6 SR10 FP1 Cumulative Fix for WebSphere
7.0.0.25: Java SDK 1.6 SR11 Cumulative Fix for WebSphere Application Server
7.0.0.27: Java SDK 1.6 SR12 Cumulative Fix for WebSphere Application Server
7.0.0.29: Java SDK 1.6 SR13 FP2 Cumulative Fix for WebSphere Application Server
7.0.0.45: Java SDK 1.6 SR16 FP60 Cumulative Fix for WebSphere Application Server
7.0.0.31: Java SDK 1.6 SR15 Cumulative Fix for WebSphere Application Server
7.0.0.35: Java SDK 1.6 SR16 FP1 Cumulative Fix for WebSphere Application Server
7.0.0.37: Java SDK 1.6 SR16 FP3 Cumulative Fix for WebSphere Application Server
7.0.0.39: Java SDK 1.6 SR16 FP7 Cumulative Fix for WebSphere Application Server
7.0.0.41: Java SDK 1.6 SR16 FP20 Cumulative Fix for WebSphere Application Server
7.0.0.43: Java SDK 1.6 SR16 FP41 Cumulative Fix for WebSphere Application Server
APAR status
Closed as program error.
Error description
Using InheritanceType.SINGLE_TABLE a ClassCastException occurs when accessing entities in the inheritance hierarchy. The exception is as follows: Caused by: java.lang.ClassCastException: problem.domain.ItemRecord at problem.domain.InputHeaderRecord.pcReplaceField(InputHeaderRecor d.java) at org.apache.openjpa.kernel.StateManagerImpl.replaceField(StateMan agerImpl.java:3041)
Local fix
N/A
Problem summary
**************************************************************** * USERS AFFECTED: All users of IBM WebSphere Application * * Server V7.0.0 who make use of the JPA * * InheritanceType.SINGLE_TABLE type and * * JPA entity subclasses. * **************************************************************** * PROBLEM DESCRIPTION: ClassCastException when base entity * * class has * * InheritanceType.SINGLE_TABLE base * * with multiple entity subclasses. * **************************************************************** * RECOMMENDATION: * **************************************************************** If multiple entity subclasses extends a entity base class using InheritanceType.SINGLE_TABLE, with Many-to-One relation from base class to itself, a ClassCastException may occur when the Many-to-One collection is not empty due to a problem in discriminating the proper entity subclass type. Caused by: java.lang.ClassCastException: problem.domain.ItemRecord at problem.domain.InputHeaderRecord.pcReplaceField(InputHeaderRecor d.java) at org.apache.openjpa.kernel.StateManagerImpl.replaceField(StateMan agerImpl.java:3041) at org.apache.openjpa.kernel.StateManagerImpl.storeObjectField(Stat eManagerImpl.java:2473) at org.apache.openjpa.kernel.StateManagerImpl.storeObject(StateMana gerImpl.java:2463) at org.apache.openjpa.jdbc.meta.strats.RelationFieldStrategy.loadEa gerJoin(RelationFieldStrategy.java:541) at org.apache.openjpa.jdbc.meta.FieldMapping.loadEagerJoin(FieldMap ping.java:807) at org.apache.openjpa.jdbc.kernel.JDBCStoreManager.load(JDBCStoreMa nager.java:1052) at org.apache.openjpa.jdbc.kernel.JDBCStoreManager.load(JDBCStoreMa nager.java:1012) at org.apache.openjpa.jdbc.kernel.JDBCStoreManager.initializeState( JDBCStoreManager.java:378) at org.apache.openjpa.jdbc.kernel.JDBCStoreManager.initialize(JDBCS toreManager.java:278) at org.apache.openjpa.kernel.DelegatingStoreManager.initialize(Dele gatingStoreManager.java:111) at org.apache.openjpa.kernel.ROPStoreManager.initialize(ROPStoreMan ager.java:57) at org.apache.openjpa.kernel.BrokerImpl.initialize(BrokerImpl.java: 913) at org.apache.openjpa.kernel.BrokerImpl.find(BrokerImpl.java:871) ... 38 more To follow is an example of how the code looks for this exception to occur: @Entity @Inheritance(strategy = InheritanceType.SINGLE_TABLE) @DiscriminatorColumn(name = "DISCRIMATOR", discriminatorType = DiscriminatorType.INTEGER) @DiscriminatorValue("99") public class ParentRecord { @Id public long identifier; @ManyToOne(cascade = CascadeType.MERGE,fetch=FetchType.EAGER) @ForeignKey @JoinColumn(name = "PARENT_ID") private ParentRecord parent; .... @Entity @DiscriminatorValue("6") public class ItemRecord extends ParentRecord { ..... @Entity @DiscriminatorValue("8") public class InputRecord extends ParentRecord { .....
Problem conclusion
With this fix, code has been added to OpenJPA to correctly discriminate between the class in the inheritance hierarchy which the user is requesting versus other classes in the hierarchy. The fix for this APAR is currently targeted for inclusion in Service Level (Fix Pack) 7.0.0.19 of WebSphere Application Server version 7.0.0. Please refer to the recommended updates page for delivery information: http://www.ibm.com/support/docview.wss?rs=180&uid=swg27004980
Temporary fix
Comments
APAR Information
APAR number
PM41240
Reported component name
WAS EXPRESS
Reported component ID
5724I6300
Reported release
700
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt
Submitted date
2011-06-09
Closed date
2011-09-02
Last modified date
2011-09-02
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
Fix information
Fixed component name
WAS EXPRESS
Fixed component ID
5724I6300
Applicable component levels
R700 PSY
UP
Document Information
Modified date:
27 October 2021