When using Netscape navigator 4.72 (or similiar) with Java(TM) Plug-in: Version 1.2.2_02 and jre 1.2.2-05 a nullpointer exception occurs on reload of demo applets.

To reproduce:

Install the Java(TM) Plug-in: Version 1.2.2_02 Oct-14-1999 on a Solaris 2.6
or 7 system. Then install JRE version Solaris_JDK_1.2.2_05

setenv NPX_JRE_PATH /usr/java1.2/jre
setenv NPX_PLUGIN_PATH /opt/NSCPcom/plugins
netscape &
goto http://192.9.48.9/products/plugin/1.2.2/demos/applets/Clock/example1.html
You should see a clock.
Reload

Watch the message in the console:

Java(TM) Plug-in: Version 1.2.2_02 Oct-14-1999
Using JRE version 1.2.2
User home directory = /home/tv
Proxy Configuration: Manual Configuration
     Proxy: http=webcache.east:8080;ftp=webcache.east:8080;gopher=webcache.east:8080;wais=webcache.east:8080
     Proxy Overrides: *almanach.germany sunweb.germany othello.germany

JAR cache enabled.
Opening http://192.9.48.9/products/plugin/1.2.2/demos/applets/Clock/Clock2.class proxy=webcache.east:8080
CacheHandler file name:
IO Exception, using remote copy
java.lang.NullPointerException
at sun.plugin.AppletViewer.onPrivateClose(AppletViewer.java:435)
at sun.plugin.AppletViewer$1.run(AppletViewer.java:399)
at java.lang.Thread.run(Thread.java:479)