@Nullable
  public IVATItem findVATItem (@Nullable final EVATItemType eType, @Nullable final BigDecimal aPercentage)
  {
    if (eType == null || aPercentage == null)
      return null;
    return findFirst (x -> x.getType ().equals (eType) && x.hasPercentage (aPercentage));
  }
@ Nullable public IVATItem findVATItem ( @ Nullable final EVATItemType eType , @ Nullable final BigDecimal aPercentage ) { if ( eType == null || aPercentage == null ) return null ; return findFirst ( x -> x . getType ( ) . equals ( eType ) && x . hasPercentage ( aPercentage ) ) ; }
Find a matching VAT item with the passed properties, independent of the
country.

@param eType
The VAT type to use. May be <code>null</code> resulting in a
<code>null</code> result.
@param aPercentage
The percentage to find. May be <code>null</code> resulting in a
<code>null</code> result.
@return <code>null</code> if no matching item could be found,