You are annotating getter/setter, but their names do not match bean-style.
public com.MyData getMyData() {...}
public void setMetadataList(com.MyData myData) {...}



Jon Solanu wrote:
> 
> The errors went away when I added an explicit em.flush to the method
> inserting the serialized object.  However a null is still being inserted
> into the databse for that field.  I attempted to change the attribute
> value to specify that it was a blob field but that had no affect.
> 
> 
> 
>       @Lob()
>       @Basic(fetch=FetchType.EAGER)
>       @Column(name="MYDATA_LIST")
>       public com.MyData getMyData() {
>               return this.myData;
>       }
>       public void setMetadataList(com.MyData myData) {
>               this.myData= myData;
>       }
> 
> 

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