IcedTea6 Mozilla plugin with OpenJDK6

[Jung-uk Kim]

On Monday 13 September 2010 02:03 pm, Ivan Voras wrote:
> On 13 September 2010 19:54, Jung-uk Kim <jkim at freebsd.org> wrote:
> > On Friday 10 September 2010 07:32 pm, Ivan Voras wrote:
> >> On 11 September 2010 01:00, Jung-uk Kim <jkim at freebsd.org> wrote:
> >> > On Friday 10 September 2010 06:13 pm, Ivan Voras wrote:
> >> >> But I cannot start for example this one:
> >> >>
> >> >> http://java.sun.com/applets/jdk/1.4/demo/applets/ArcTest/exam
> >> >>ple 1.h tml
> >> >
> >> > Probably you want to test it locally:
> >> >
> >> > file:///usr/local/openjdk6/demo/applets/ArcTest/example1.html
> >>
> >> Yes, the local copy works. So it is just failing to load applets
> >> over the network? Could this be some convoluted Java security
> >> problem?
> >
> > I believe it just timed out for your environment.  In fact, there
> > is a
>
> If it is a timeout, it's a very quick one - well under a second.

If you want to debug it further, you can set 'ICEDTEAPLUGIN_DEBUG' 
environment variable and see what's going on, i.e.,

env ICEDTEAPLUGIN_DEBUG=1 firefox3

Plugin-side trace will be printed on stdout.  Java-side trace will be 
logged in ~/.icedteaplugin/java.stderr and 
~/.icedteaplugin/java.stdout.

> > reverse problem, i.e., some applets do not work locally when they
> > want to open local files.
> > E.g., /usr/local/openjdk6/demo/applets/MoleculeViewer/
> > and /usr/local/openjdk6/demo/applets/WireFrame/ fail because they
> > cannot open files in subdirectory (models).  If anyone can
> > reproduce the same problem under Linux environment, please file
> > an upstream PR here:
> >
> > http://icedtea.classpath.org/bugzilla/
> >
> >> > BTW, IcedTea plugin is not 100% compatible with Sun/Oracle's.
> >> >  Your mileage may vary. ;-)
> >>
> >> But the underlying Java is OpenJDK, right?
> >
> > Almost. ;-) There is a big missing piece for applet support in
> > OpenJDK, i.e., Web Start.  IcedTea team imported Netx as a
> > replacement but it is not quite drop-in replacement, IMHO:
> >
> > http://jnlp.sourceforge.net/netx/
> > http://langel.wordpress.com/2008/01/11/icedtea-and-netx/
>
> I've tried your latest port
> (http://people.freebsd.org/~jkim/icedtea/openjdk6-icedteanp2.tar.bz
>2) and the problem with applet initialization / timeout remains, but
> the mutex "CPU eating" problem appears to be solved.

Thanks for testing!

> I hope you can get some of those patches applied upstream :)

I'll try but I am not sure the author would accept non-Linux distro 
patches.  Maybe I can convince him with "Debian GNU/kFreeBSD should 
be supported" or "NPTL is not POSIXly correct" argument, though. :-/

Jung-uk Kim