[fedora-java] HelloWorld Example Won't compile
Charles Curley
charlescurley at charlescurley.com
Wed Aug 24 04:04:40 UTC 2005
On Tue, Aug 23, 2005 at 11:16:21PM -0400, Andrew Overholt wrote:
> * Charles Curley <charlescurley at charlescurley.com> [2005-08-23 22:20]:
> > [javac] ----------
> > [javac] 1. WARNING in /home/ccurley/src/com/charlescurley/hello/src/HelloWorld.java
> > [...]
> > [javac] The serializable class HelloWorld does not declare a static final serialVersionUID field of type long
> > [javac] ----------
> > [javac] 1 problem (1 warning)
> >
> > What am I missing here?
>
> Isn't that just a warning and not an error? ecj is a little more
> particular than other bytecode compilers WRT serialVersionUIDs IIRC.
>
> Andrew
I guess I'm a little picky about warnings. I learned way back when
ANSI C was all the latest rage that ignoring them was not a good
idea.
Anyway, turns out the solution is to declare the dang thing:
public class HelloWorld extends HttpServlet {
static final long serialVersionUID = 0;
Now a C compiler (or lint) would have complained that it isn't
used. Sigh.
Thanks
--
Charles Curley /"\ ASCII Ribbon Campaign
Looking for fine software \ / Respect for open standards
and/or writing? X No HTML/RTF in email
http://www.charlescurley.com / \ No M$ Word docs in email
Key fingerprint = CE5C 6645 A45A 64E4 94C0 809C FFF6 4C48 4ECD DFDB
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 189 bytes
Desc: not available
Url : http://lists.fedoraproject.org/pipermail/java-devel/attachments/20050823/b88a4f68/attachment.bin
More information about the java-devel
mailing list