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Hey
,
I guess the
serialVersionUID variable should neither be public nor protected nor
Private, it should have default access, make sure you maintain
this.
Hope this helps,
though i am not able to find out why this problem has come when u r using the
same JDK version on both the m/c and you didnt change the souce of the java file
too.
If you find out
what the problem is then please do inform me about it.
have a nice
day.
regards,
kris
That's what I have done at the moment. The
exception trace showed the class version id that it expected the target class
on machine B. I put that as the serialVersionUID in the class on
machine B and it works fine. But I don't understand why it should throw an
exception if not declared as the class hasn't changed and I am using the same
jdk on both the machines.
Cheers
Sachin Pandey
NUIX Pty Ltd
Level 8, 143 York Street,
Sydney
2000
Phone: (02) 92839010
Fax: (02) 92839020
Disclaimer:
This message is intended only for the named recipient. If
you are not the intended recipient you are notified that disclosing,copying,
distributing or taking any action in reliance on the contents of this
information is strictly prohibited.
----- Original Message -----
Sent: Monday, September 30, 2002 5:51
PM
Subject: Re: Local class not
compatible
Hi,
You should
declare the serialVersionUID instance
variable for your class. Otherwise the id will be generated by java which
will be different for different jdk build. If you use same jdk build in both
the machines then this problem may not come. Try with serailVersionUID. I
hope this will solve your
problem.
Regards
V.S.Saravanan
Sachin Pandey wrote:
I am storing a serialized version of a class
in the database.I ran the upload on a machine A, backed up the
database and restored the database on another machine B. On machine B when
I try to retrieve the object back I am getting a SQLException saying that
the local class is not compatible showing two different
serialVersionUID's.There is no difference in the class
source between machine A and machine B. I haven't declared the
private serialVersionUID instance variable for the class (which I should).
What's confusing me is if the class hasn't
changed then why am I getting this "Local class not compatible"
exceptions. I am retrieving the object from an Entity Bean the sql
type is set as OID and the
jdbc type as a JAVA_OBJECT. In what cases can I get this
exception apart from the class source changing?
Cheers
Sachin Pandey
NUIX Pty Ltd
Level 8, 143
York Street,
Sydney 2000
Phone: (02) 92839010
Fax: (02)
92839020
Disclaimer:
This message is intended only
for the named recipient. If you are not the intended recipient you are
notified that disclosing,copying, distributing or taking any action in
reliance on the contents of this information is strictly
prohibited.
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