Method isNumberType

java/org/apache/el/lang/ELArithmetic.java:450–453

Check if the given class is a number type. @param type The class to check @return true if the class is a number type

(final Class<?> type)

     * @return true if the class is a number type
     */
    public static boolean isNumberType(final Class<?> type) {
        return type == Long.TYPE || type == Double.TYPE || type == Byte.TYPE || type == Short.TYPE ||
                type == Integer.TYPE || type == Float.TYPE || Number.class.isAssignableFrom(type);
    }

    /**
     * Protected constructor for subclasses.