1 WarnClass.java:13:40: compiler.warn.sun.proprietary: sun.misc.Lock
   2 - compiler.err.warnings.and.werror
   3 1 error
   4 1 warning

   1 WarnClass.java:13:49: compiler.warn.sun.proprietary: sun.security.x509.X509CertInfo
   2 - compiler.err.warnings.and.werror
   3 1 error
   4 1 warning