1 - compiler.warn.preview.feature.use.classfile: Bar.class, 12
   2 - compiler.err.warnings.and.werror
   3 1 error
   4 1 warning

   1 - compiler.warn.preview.feature.use.classfile: Bar.class, 13
   2 - compiler.err.warnings.and.werror
   3 1 error
   4 1 warning