JDK 14 RF(pre)R: add section on "conditionally serializable" collections

[Peter Levart]

Oh god, a typo in a typo comment... I better go to sleep now ;-)

On 10/4/19 11:14 PM, Peter Levart wrote:
>> + * serialized. Otherwise, is one or more objects in a collection are
> s/is/in/ 

s/is/if/

Peter