Re: Applet Crashes on Firefox.

From:

Nigel Wade <nmw@ion.le.ac.uk>

Newsgroups:

comp.lang.java.programmer

Date:

Wed, 23 Sep 2009 13:28:42 +0000 (UTC)

Message-ID:

<h9d7qa$l39$1@south.jnrs.ja.net>

On Tue, 22 Sep 2009 22:21:26 -0700, Sanny wrote:

The index of 73 is not in the available range. ??You want a better
answer than that you need to provide some source code.

Is this error comming in PAINT() function of applet?

Then I can search the paint() code and find which String is searched at
73 index.

You should look at the GUI initialization and manipulation with respect
to threads. Problems within the event dispatch thread (especially ones
which are intermittent or only occur on one platform whilst running on
others) are commonly due to attempting to initialize or modify the GUI on
the main thread rather than the EDT. This creates potential race
conditions where events triggered on the EDT attempt to render components
which are in the process of being modified on another thread.

Given that the error is a StringIndexOutOfBoundsException it looks like
at some point the String was longer than 73, but by the time the EDT gets
to rendering it it has changed length. This smacks of unsynchronized
access to some Component by two threads.

You've just been lucky up to now on your computer.

--
Nigel Wade