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/**
 * Retrieve a command object for the given request.
 * <p>Default implementation calls createCommand. Subclasses can override this.
 * @param request current HTTP request
 * @return object command to bind onto
 * @see #createCommand
 */
 protected Object getCommand(HttpServletRequest request) throws Exception {
    return createCommand();
 }

/**
 * Create a new command instance for the command class of this controller.
 * @return the new command instance
 * @throws InstantiationException if the command class could not be instantiated
 * @throws IllegalAccessException if the class or its constructor is not accessible
 */
 protected final Object createCommand() throws InstantiationException, IllegalAccessException {
    if (this.commandClass == null) {
         throw new IllegalStateException("Cannot create command without commandClass being set - " +
            "either set commandClass or override formBackingObject");
    }
    if (logger.isDebugEnabled()) {
        logger.debug("Creating new command of class [" + this.commandClass.getName() + "]");
    }
    return this.commandClass.newInstance();
 }