A significant fraction of the lambda candidates in the JDK are converted
to some form of PrivilegedAction. However, at least until there is a
significant performance advantage of lambda over inner classes, I think
it is probably not worth trying to convert these -- I think the
explicitness of "new PrivilegedAction" is pretty valuable.
As a result, I am not sure whether it is a good idea to blanketly mark
these as @FunctionalInterface, even though they are technically.
On 2/5/2013 5:35 PM, Joe Darcy wrote:
Hello,
As part of Project Lambda, a FunctionalInterface annotation type was
added to the platform to mark interfaces that are intended to be used in
lambda expressions. I've sent out a code review request to add this
annotation to types in the core-libs area [1].
To assist the security team in adding analogous annotations to your
types, the list of candidate types in for security-related classes in
java.* and javax.* is given below. I recommend sub-tasks of JDK-8005297
"Add FunctionalInterface support to the platform" be used to track the
work of adding @FunctionalInterface annotations to security types.
Thanks,
-Joe
[1]
http://mail.openjdk.java.net/pipermail/core-libs-dev/2013-February/014292.html
jdk/src/share/classes/java/security/DomainCombiner.java:81: Note:
Candidate functional interface
public interface DomainCombiner {
^
jdk/src/share/classes/java/security/KeyStore.java:212: Note: Candidate
functional interface
public static interface LoadStoreParameter {
^
jdk/src/share/classes/java/security/cert/CertPathParameters.java:40:
Note: Candidate functional interface
public interface CertPathParameters extends Cloneable {
^
jdk/src/share/classes/java/security/cert/CertPathValidatorResult.java:41: Note:
Candidate functional interface
public interface CertPathValidatorResult extends Cloneable {
^
jdk/src/share/classes/java/security/cert/CertStoreParameters.java:49:
Note: Candidate functional interface
public interface CertStoreParameters extends Cloneable {
^
jdk/src/share/classes/java/security/interfaces/ECKey.java:36: Note:
Candidate functional interface
public interface ECKey {
^
jdk/src/share/classes/java/security/interfaces/DSAKey.java:39: Note:
Candidate functional interface
public interface DSAKey {
^
jdk/src/share/classes/java/security/interfaces/RSAKey.java:41: Note:
Candidate functional interface
public interface RSAKey {
^
jdk/src/share/classes/java/security/PrivilegedAction.java:42: Note:
Candidate functional interface
public interface PrivilegedAction<T> {
^
jdk/src/share/classes/java/security/Guard.java:43: Note: Candidate
functional interface
public interface Guard {
^
jdk/src/share/classes/java/security/PrivilegedExceptionAction.java:45:
Note: Candidate functional interface
public interface PrivilegedExceptionAction<T> {
^
jdk/src/share/classes/java/security/Principal.java:39: Note: Candidate
functional interface
public interface Principal {
^
jdk/src/share/classes/java/security/spec/ECField.java:41: Note:
Candidate functional interface
public interface ECField {
^
jdk/src/share/classes/javax/crypto/interfaces/DHKey.java:40: Note:
Candidate functional interface
public interface DHKey {
^
jdk/src/share/classes/javax/security/auth/callback/CallbackHandler.java:68:
Note: Candidate functional interface
public interface CallbackHandler {
^
