When updating an entities byte[] field configured as lazy loaded causes the exception:
Caused by: java.lang.ClassCastException: org.hibernate.bytecode.enhance.spi.LazyPropertyInitializer$1 cannot be cast to [B
at org.hibernate.type.descriptor.java.PrimitiveByteArrayTypeDescriptor.areEqual(PrimitiveByteArrayTypeDescriptor.java:26) <...>

Test passes if I disable "enableLazyInitialization" or cause the field to load (via getter) before I update it.