Re: Is serialization broken?

[Bryce McKinlay <bryce at albatross dot co dot nz>]

Warren Levy wrote:

> On Fri, 26 Jan 2001, Barnet Wagman wrote:
>
> > I'm getting an erroneous ClassCastException deserializing an object with
> > gcj,  gcc version 2.97 20010117 (experimental).
> >
> > With the test program SerTest.java (below)...
>
> Well, it seems that java.io.DataInputStream.readInt is throwing an
> EOFException because it is mistakenly reading some negative data to mean
> EOF.  I was able to jump past the check for the negative value in the
> debugger and the program ran to completion just fine.

Ouch. Now that I look at this, my DataInputStream patch from classpath should
go in. It will re-merge the implementations and ought to fix this bug.

> Breakpoint 2, java.util.HashMap.readObject (this=@8101fc8, s=@8086400)
>     at /home/warrenl/egcs/libjava/java/util/HashMap.java:639
> 639         s.defaultReadObject();

Hmm... do you have a magic GDB that can demange new-ABI java symbols? I'm
using the latest gdb from cvs, which seems to work quite nicely, but it
doesn't demangle. I was planning to make an attempt to fix this, but don't
want to duplicate someone elses effort.

regards

  [ bryce ]