JDK 16 RFR of JDK-8071961: Add javac lint warning when a default constructor is created

[Alex Buckley]

On 7/30/2020 10:39 PM, Joe Darcy wrote:
> PS In the next iteration of the webrev,
> 
>      http://cr.openjdk.java.net/~darcy/8071961.6
> 
> the messages have been updated to
> 
>   185 javac.opt.Xlint.desc.missing-declared-ctor=\
>   186     Warn about missing declared constructors in public classes in 
> exported packages.
> 
> 1763 # 0: symbol, 1: symbol, 2: symbol
> 1764 compiler.warn.missing-declared-ctor=\
> 1765     class {0} in exported package {1} of module {2} does not 
> declare any explicit constructors, exposing a default constructor to 
> clients

These messages look very good.

Alex