private boolean canConvertKey(TypeDescriptor sourceType, TypeDescriptor targetType) {
		return ConversionUtils.canConvertElements(sourceType.getMapKeyTypeDescriptor(),
				targetType.getMapKeyTypeDescriptor(), this.conversionService);
	}
private boolean canConvertKey ( TypeDescriptor sourceType , TypeDescriptor targetType ) { return ConversionUtils . canConvertElements ( sourceType . getMapKeyTypeDescriptor ( ) , targetType . getMapKeyTypeDescriptor ( ) , this . conversionService ) ; }
internal helpers