src/jdk.compiler/share/classes/com/sun/tools/javac/resources/javac.properties

*** 180,189 ****
--- 180,192 ----
      Warn about use of unnecessary casts.
  
  javac.opt.Xlint.desc.classfile=\
      Warn about issues related to classfile contents.
  
+ javac.opt.Xlint.desc.default-ctor=\
+     Warn about use of default (implicit) constructors in public classes in exported packages.
+ 
  javac.opt.Xlint.desc.deprecation=\
      Warn about use of deprecated items.
  
  javac.opt.Xlint.desc.dep-ann=\
      Warn about items marked as deprecated in JavaDoc but not using the @Deprecated annotation.