public static <T> T notNull(final T object) {
        return notNull(object, DEFAULT_IS_NULL_EX_MESSAGE);
    }
<p>Validate that the specified argument is not {@code null};
otherwise throwing an exception.

<pre>Validate.notNull(myObject, "The object must not be null");</pre>

<p>The message of the exception is &quot;The validated object is
null&quot;.</p>

@param <T> the object type
@param object  the object to check
@return the validated object (never {@code null} for method chaining)
@throws NullPointerException if the object is {@code null}
@see #notNull(Object, String, Object...)
fastexcel-core/src/main/java/cn/idev/excel/util/Validate.java