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March 2004

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Subject:
Is Controller an interface or class?
From:
Xun Jiang <[log in to unmask]>
Reply To:
MASON Multiagent Simulation Toolkit <[log in to unmask]>
Date:
Wed, 31 Mar 2004 14:52:45 -0500
Content-Type:
text/plain
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I just downloaded mason (version 3) and I am trying to read mason tutorial2
when I encounter two problems:

1. Tutorial2 has a run-time error (on WIndows2000 with java1.4.1):

java.lang.IllegalAccessError: tried to access method java.lang.Object.clone
()Ljava/lang/Object; from class sim.field.grid.IntGrid2D
......

I didn't complie the source code.

2. Controller (in sim/display) is defined as an interface, but in Tutorial2
source code, it is used as a class (The mason diagram shows it as a
concrete class). Why?

Can anyone on this mailing list help me out? Many thanks!

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