[hibernate-issues] [Hibernate-JIRA] Resolved: (HHH-3794) Issue when method return type is Interface

Issue when method return type is Interface ------------------------------------------ Key: HHH-3794 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-3794 Project: Hibernate Core Issue Type: Bug Components: envers Reporter: Amar Singh Assignee: Adam Warski Fix For: 3.5 I came across this problem while using Hibernate-envers-3.4-SNAPSHOT with Hibernate-3.3.GA or Hibernate-3.4-SNAPSHOT. Below is my hbm.xml file: Code: <?xml version="1.0"?> <!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN" "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd"> <hibernate-mapping default-lazy="false" package="com.xyz.fwk.persistence.hibernate.impl.bug.demo.test"> <class name="Trade" table="trade" batch-size="64" lazy="false"> <id name="id" type="int" access="field"> <generator class="native"></generator> </id> <component name="tradeId" class="TypeIdentifier"> <property name="id" column="TRADE_ID"/> <property name="type" column="TRADE_ID_TYPE"/> </component> </class> </hibernate-mapping> My class definition for Trade is: Code: @Audited (this doesn't matter) public class Trade implements Serializable { protected int id; protected ITypeIdentifier tradeId ; public Trade() { } public ITypeIdentifier getTradeId() { return tradeId; } public void setTradeId(ITypeIdentifier i) { tradeId =i ; } } Since the getTradeId returns and ITypeIdentifier which is an interface, (hence has no super class) the method addPropertiesFromClass(XClass clazz) in org.hibernate.envers.configuration.metadata.reader.AuditedPropertiesReader when trying to analyze ITypeIdentifier fails because the interface has no super class ! Code: private void addPropertiesFromClass(XClass clazz) { XClass superclazz = clazz.getSuperclass(); (super class will be null for an interface return type ) if (!"java.lang.Object".equals(superclazz.getName())) { addPropertiesFromClass(superclazz); } addFromProperties(clazz.getDeclaredProperties("field"), "field", fieldAccessedPersistentProperties); addFromProperties(clazz.getDeclaredProperties("property"), "property", propertyAccessedPersistentProperties); }