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Re: Please help: InvalidClassException
Jörg Prante wrote:
> Eric Richardson wrote:
> >I'm not an expert but did you provide a serialVersionUID in your
> >source for this class?
> >If you look at samples/simple you will see this in the AutoImpl.java
> >final static long serialVersionUID = 1L;
> >Since Ozone uses serialization, the serialVersionUID needs to be the
> >same between the
> >stored object and the one used in the runtime which can change after
> >compilation if it is not specified in the class.
> I did this in OzoneSiteManagerImpl:
> protected static long serialVersionUID = 1L;
> Still I wonder if this UID must be declared as 'final static'. I will try and
> see again.
The JDK guide says
4.4 Stream Unique Identifiers
Each versioned class must identify the original class version for which
it is capable of writing streams and from which it can read.
For example, a versioned class must declare:
private static final long serialVersionUID = 3487495895819393L;
If you have the jdk javadocs there is a big section
Hope this helps,
> Jörg Prante
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