[Building Sakai] Wicket related JVM death on Java 1.6

[James Renfro]

Yes, Steve's suggestion is a good one. I'll take a look at what's involved
in updating the sakai-wicket library to use the newest stable wicket
version.

On Mon, Jan 11, 2010 at 3:48 AM, Steve Swinsburg
<steve.swinsburg at gmail.com>wrote:

> Hi David,
>
> That class is a part of the Serialization that Wicket handles. Can you send
> me the crash log and I'll follow it up on the Wicket lists.
>
> Do you mean this version of the SCORM player?
> https://svn.edia.nl/edia-sakai/edia-sakai-scorm/branches/2.5.3/
>
> Unfortunately it uses a very old version of Wicket, wrapped inside Sakai
> Wicket, which is an old version of the 1.3 series, possibly even 1.3.0. This
> old version is most likely the cause.
>
> If possible, you could try to upgrade the Wicket version that Sakai Wicket
> uses to 1.3.7, which is the latest (and last) in the 1.3 series.  It should
> be fully compatible. Wicket is on the 1.4 branch now (almost 1.4.6 in fact),
> but its an API change and introduces generics. Ideally, Sakai Wicket should
> be upgraded, tagged for Wicket 1.3.7 so older tools can use it, then
> deprecated. I've extracted the components it provides into separate parts
> which means no dependency on Sakai Wicket at all, and easy upgrades when new
> Wicket versions are released.
>
> cheers,
> Steve
>
>
>
> On 11/01/2010, at 6:37 PM, David Horwitz wrote:
>
> > Hi All,
> >
> > We hit this worrying error that our production environment. It seems
> > that at least some tool that use wicket via the Sakai-wicket library can
> > lead to JVM death when running under java 1.6, the same tool runs fine
> > under java 1.5. We saw this with the edia branch of the UC Davis scrorm
> > tool. The crash report references a wicket call:
> >
> > 2010-01-09 18:54:27,539 INFO http-8443-Processor23
> > org.sakaiproject.tool.su.SuTool - [SuTool] Username dhorwitz becoming
> > 00011398
> > #
> > # A fatal error has been detected by the Java Runtime Environment:
> > #
> > # SIGSEGV (0xb) at pc=0x00002aaaab5fa7fb, pid=21669, tid=1218128192
> > #
> > # JRE version: 6.0_17-b04
> > # Java VM: Java HotSpot(TM) 64-Bit Server VM (14.3-b01 mixed mode
> > linux-amd64 )
> > # Problematic frame:
> > # J
> >
> org.apache.wicket.util.io.WicketObjectOutputStream.writeObjectOverride(Ljava/lang/Object;)V
> >
> > #
> > # An error report file with more information is saved as:
> > # /usr/local/sakai/logs/hs_err_pid21669.log
> > #
> > # If you would like to submit a bug report, please visit:
> > # http://java.sun.com/webapps/bugreport/crash.jsp
> >
> > Any ideas/advise/fixes appreciated.
> >
> >
> > Regards
> >
> > David
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