[RFC][plugin]: fix concurrency problems in PAV.java

[Denis Lila]

> Did you change any functionality in destroyApplet or is it just
> spacing/style fixes?

In the first patch the only functionality change in destroyApplet
is this (and there are no spacing changes):

-        if (applets.containsKey(identifier))
-            applets.get(identifier).dispose();
+        PluginAppletViewer pav = applets.get(identifier);
+        if (pav != null)
+            pav.dispose();

Is that ok?

Regards,
Denis.

----- Original Message -----
> * Denis Lila <dlila at redhat.com> [2011-04-12 17:24]:
> > > Andrew posted some valid concerns in another thread. After those
> > > are
> > > all resolved, OK from me.
> >
> > I replied to that e-mail. Some of those were invalid
> > and I pointed those out. The others I think were good
...<snip>