Minecraft Forge: force chunk loading

RenderGlobal render = Minecraft.getMinecraft().renderGlobal;

/* Getting private fields from RenderGlobal using reflection, safest way,
 * I guess */
Field frustumField = null;
Field chunkyField = null;

for (Field field : render.getClass().getDeclaredFields())
{
    if (chunkyField == null && field.getType().equals(ChunkRenderDispatcher.class))
    {
        chunkyField = field;
        chunkyField.setAccessible(true);
    }

    if (frustumField == null && field.getType().equals(ViewFrustum.class))
    {
        frustumField = field;
        frustumField.setAccessible(true);
    }

    if (chunkyField != null && frustumField != null)
    {
        break;
    }
}

/* Forcing all possible chunks to be loaded */
if (chunkyField != null && frustumField != null)
{
    try
    {
        ChunkRenderDispatcher chunks = (ChunkRenderDispatcher) chunkyField.get(render);
        ViewFrustum frustum = (ViewFrustum) frustumField.get(render);

        for (RenderChunk chunk : frustum.renderChunks)
        {
            /* Unloaded chunks seem to have compiled chunk field default to
             * CompiledChunk.DUMMY */
            boolean isDummy = chunk.getCompiledChunk() == CompiledChunk.DUMMY;

            if (isDummy)
            {
                chunks.updateChunkNow(chunk);
            }
        }
    }
    catch (Exception e)
    {
        e.printStackTrace();
    }
}