Suppress javac warning “…is internal proprietary API and may be removed in a future release”

Question

When I compile the Spring JDBC source on OS X with JDK 1.7.0, I get this warning:

warning: CachedRowSetImpl is internal proprietary API and may be removed in         


        

Answer 1

see this answer

Cannot stop ant from generating compiler Sun proprietary API warnings

Testing code

@SuppressWarnings("sunapi")
sun.security.x509.X509CertImpl test;

compiling command line

javac test.java -Werror -Xlint:sunapi -XDenableSunApiLintControl

or

javac test.java -Werror -Xlint:all -XDenableSunApiLintControl

compile passed without any warnings

remove the SuppressWarnings tag and compile again:

an error is reported then

test.java:4: warning: X509CertImpl is internal proprietary API and may be removed in a future release
        sun.security.x509.X509CertImpl test;
                     ^
error: warnings found and -Werror specified
1 error
1 warning