[hibernate-issues] [Hibernate-JIRA] Commented: (HHH-3151) using property-ref and not-null="true" simultaneously in collection <key> element crashes with ArgumentIllegalException

using property-ref and not-null="true" simultaneously in collection <key> element crashes with ArgumentIllegalException ----------------------------------------------------------------------------------------------------------------------- Key: HHH-3151 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-3151 Project: Hibernate Core Issue Type: Bug Components: core Affects Versions: 3.2.5 Environment: hibernate 3.2.5 Reporter: boris schukin Example: Let's we have one class "MetaMethod" and second class "MetaParameter" . Class MetaMethod has a list of MetaParameters. Corresponding tables are: CREATE TABLE META_METHOD (ID VARCHAR2(50) NOT NULL ,CODE VARCHAR2(40) NOT NULL ,BCN_CODE VARCHAR2(40) NOT NULL ,NAME VARCHAR2(100) ) ALTER TABLE META_METHOD ADD (CONSTRAINT SK_BFN_PK PRIMARY KEY (ID)) ALTER TABLE META_METHOD ADD (CONSTRAINT SK_BFN_UK1 UNIQUE (CODE ,BCN_CODE)) CREATE TABLE META_PARAMETER (ID VARCHAR2(50) NOT NULL ,BFN_CODE VARCHAR2(40) NOT NULL ,BCN_CODE VARCHAR2(40) NOT NULL ,SEQUENCE_NUMBER NUMBER(4,0) NOT NULL ,TYPE VARCHAR2(255) NOT NULL ) ALTER TABLE META_PARAMETER ADD (CONSTRAINT SK_BFA_PK PRIMARY KEY (ID)) ALTER TABLE META_PARAMETER ADD (CONSTRAINT SK_BFA_UK1 UNIQUE (BFN_CODE, BCN_CODE ,SEQUENCE_NUMBER)) ALTER TABLE META_PARAMETER ADD (CONSTRAINT SK_BFA_BFN_FK1 FOREIGN KEY (BFN_CODE ,BCN_CODE) REFERENCES META_METHOD (CODE ,BCN_CODE)) You see, the foreign key (BFN_CODE ,BCN_CODE) on the table META_PARAMETER is organized by native key (CODE ,BCN_CODE) of the META_METHOD table. Structure of classes is simple (in my opinion), so i introduce the hibernate mappings: <class name="com.stinscoman.kernel.api.meta.MetaMethod" table="META_METHOD" > <id name="id" column="ID" length="40" type="long"> <generator class="assigned" /> </id> <properties name="theKey" unique="true"> <property name="code" column="CODE" not-null="true"/> <property name="bc" column="BCN_CODE" not-null="true" /> </properties> <property name="name" column="NAME" /> <list name="parameters" cascade="all-delete-orphan"> <key property-ref="theKey" not-null="true" update="false"> <column name="BFN_CODE" not-null="true"/> <column name="BCN_CODE" not-null="true"/> </key> <list-index column="SEQUENCE_NUMBER" /> <one-to-many class="com.stinscoman.kernel.api.meta.MetaParameter"/> </list> </class> <class name="com.stinscoman.kernel.api.meta.MetaParameter" table="SK_BFN_ARGUMENT"> <id name="id" column="ID" length="40" type="long"> <generator class="assigned"/> </id> </class> Now, somewhere in hibernate session, i try to put a parameter to method MetaMethod method = ... <the code to obtain MetaMethod object> MetaParameter param = ... <the code to obtain MetaParameter object> method.getParameters().add( param ); Ok. When session is flushing i always have: Caused by: org.hibernate.PropertyAccessException: IllegalArgumentException occurred calling getter of com.stinscoman.kernel.api.meta.MetaMethod.code at org.hibernate.property.BasicPropertyAccessor$BasicGetter.get(BasicPropertyAccessor.java:171) at org.hibernate.tuple.component.AbstractComponentTuplizer.getPropertyValue(AbstractComponentTuplizer.java:64) at org.hibernate.tuple.component.AbstractComponentTuplizer.getPropertyValues(AbstractComponentTuplizer.java:70) at org.hibernate.tuple.component.PojoComponentTuplizer.getPropertyValues(PojoComponentTuplizer.java:83) at org.hibernate.type.ComponentType.getPropertyValues(ComponentType.java:353) at org.hibernate.type.ComponentType.getPropertyValues(ComponentType.java:348) at org.hibernate.engine.ForeignKeys$Nullifier.nullifyTransientReferences(ForeignKeys.java:77) at org.hibernate.engine.ForeignKeys$Nullifier.nullifyTransientReferences(ForeignKeys.java:47) at org.hibernate.event.def.AbstractSaveEventListener.performSaveOrReplicate(AbstractSaveEventListener.java:282) ... Caused by: java.lang.IllegalArgumentException: java.lang.ClassCastException@75a0c6 at sun.reflect.GeneratedMethodAccessor79.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.hibernate.property.BasicPropertyAccessor$BasicGetter.get(BasicPropertyAccessor.java:145) ... 70 more As i understand, the problem is in property-ref and not-null="true" simultaneously in collection <key> element.