Hi,
Currently when use wsdl2java, by default the generated exception class
has a serialVersionUID field which use the timestamp when generate
the code, also we have another flag useFQCNForFaultSerialVersionUID
which generate serialVersionUID based on hashcode of the fully
qualified class name of the Exception.
The serialVersionUID generally doesn't matter when we use typical way
to do webservice invocation which use jaxb to do marshall/unmarsall,
however, for some scenario customer need use java serialization to
serialize/deserialize the auto-generated Exception object(like using
jms or rmi to pass object directly), and generally they won't generate
the code once and use the same copy of generated code everywhere,
customer just have same copy of wsdl file and generate the code when
they need use it, this cause the problem that the serialVersionUID is
different timestamp, so even though it's actually same exception
class, they can't use java serialization.
I know that customer may change the wsdl before generate code each
time, but IMHO java serialVersionUID to provide a chance that try it
best to match the serialize/deserialize even between different java
class version(a new filed added doesn't matter), so how about we make
useFQCNForFaultSerialVersionUID as default behavior, if the qualified
class name not change, then generate same serialVersionUID, it's make
it easier to use generated exception with java serialization.
Best Regards
Freeman
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Freeman Fang
FuseSource
Email:[email protected]
Web: fusesource.com
Twitter: freemanfang
Blog: http://freemanfang.blogspot.com
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