Bytecode instrumented byte[] lazy properties do not work -------------------------------------------------------- Key: HHH-5255 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-5255 Project: Hibernate Core Issue Type: Bug Components: core Affects Versions: 3.5.2 Environment: Hibernate-3.5.2, Oracle 10g Reporter: Kyrill Alyoshin Well, I have an entity that stores a byte[] property as a Blob. @Lob @Basic(optional = false, fetch = FetchType.LAZY) public byte[] getContent() { return content; } The content can be pretty large, so I marked it as lazy and to enable lazy property fetching I am instrumenting the class at build-time using org.hibernate.tool.instrument.javassist.InstrumentTask just as the documentation says. However, when I call session.merge on this entity, I can get this stacktrace: java.lang.ClassCastException: org.hibernate.intercept.LazyPropertyInitializer$1 cannot be cast to [B at org.hibernate.type.AbstractLongBinaryType.toInternalFormat(AbstractLongBinaryType.java:46) at org.hibernate.type.AbstractBynaryType.isEqual(AbstractBynaryType.java:134) at org.hibernate.type.NullableType.isEqual(NullableType.java:233) at org.hibernate.type.MutableType.replace(MutableType.java:60) at org.hibernate.type.TypeFactory.replace(TypeFactory.java:548) at org.hibernate.event.def.DefaultMergeEventListener.copyValues(DefaultMergeEventListener.java:495) at org.hibernate.event.def.DefaultMergeEventListener.entityIsDetached(DefaultMergeEventListener.java:423) at org.hibernate.event.def.DefaultMergeEventListener.onMerge(DefaultMergeEventListener.java:234) at org.hibernate.event.def.DefaultMergeEventListener.onMerge(DefaultMergeEventListener.java:84) at org.hibernate.impl.SessionImpl.fireMerge(SessionImpl.java:859) at org.hibernate.impl.SessionImpl.merge(SessionImpl.java:843) at org.hibernate.impl.SessionImpl.merge(SessionImpl.java:847) It seems to work fine on session.get() I think it is a bug. -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: http://opensource.atlassian.com/projects/hibernate/secure/Administrators.... - For more information on JIRA, see: http://www.atlassian.com/software/jira