Is there an easy way to suppress debug messages from plugin.jar?

Question

When using the plugin.jar library (included in JRE 1.4.2 and 1.5)
my Java Console is riddled with tons of debug messages like:
<<< ProxyClassLoader: defined LiveConnectProxy class. >>>
<<< Here're the permissions you've got: >>>
<<< java.security.Permissions@b614d0 (
(java.net.SocketPermission 127.0.0.1 connect,accept,resolve)
)I'm using the plugin.jar (replacing use of the old netscape.jar)
to bridge communication between Java Applets and JavaScript.
Each time the Applet calls back to the JavaScript side,
the callback JavaScript function makes a call to parseInt() to
convert one of the parameters passed from a string to an integer.
Each time parseInt() is called, the message above appears
in the Java Console.
I traced down the source code for this message to a debug()
statement inside the plugin.jar's class loader, but I'm not sure
how to suppress it easily.
Does anyone have any ideas I could try?
Here's the code from the Java-side:
synchronized( this )
     try
          final JSObject window = JSObject.getWindow( applet );
          if( window != null )
               final String[] stringArgs = new String[3];
               stringArgs[0] = labelName;
               stringArgs[1] = labelDisplayName;
               stringArgs[2] = labelValue;
               log.debug(stringArgs[0]);
               log.debug(stringArgs[1]);
               log.debug(stringArgs[2]);
               window.call("MyJavascriptCallback", stringArgs);
          else
               log.error("Javascript window unavailable.");
     catch( final JSException e )
          // Note: Occasionally, getWindow() will throw an exception
          // without any meaningful reason.
          // ( http://www.raditha.com/blog/archives/000938.html )
          // Possible cause: This can send updates at a fraction of a
          // second. This may be causing issues within the Plugin.jar
          // used to handle the JavaScript callback.
          log.debug("JSException", e);
}

Answer 1

Here's what I've found out...
The messages are coming from the MRJPlugin.jar provided by Firefox.
Within the netscape.oji.ProxyClassLoaderFactory class,
the following line...
System.out.println("<<< " + message + " >>>");
...appears to be the cause and cannot be turned off by a configuration setting.
The home URL for the MRJPlugin.jar is:
http://www.mozilla.org/oji/MRJPlugin.html
The last time this library had an update released was in 10/31/2000.
However, this is the Mozilla source; not Firefox.
Although changing the MRJPlugin.jar source to remove this line will appear
to fix the problem, I'm not sure of the best way to distribute the updated
MRJPlugin.jar without conflicting with Firefox's update process.
Any thoughts?