int tryBufferSize = 1023;
        final int bufSize[] = new int[] {
            origBufferSize
        };
        ctx = withConfig(ctx, new DelegatingConfiguration(ctx.getConfig()) {

            @Override
            public int getMaximumBufferSize () {
                return bufSize[ 0 ];
            }
        });
        ctx = withTestNTLMCredentials(ctx);