JnRouvignac commented on a change in pull request #76:
URL: https://github.com/apache/jclouds/pull/76#discussion_r446048154



##########
File path: core/src/main/java/org/jclouds/reflect/Reflection2.java
##########
@@ -153,15 +153,23 @@
          .newBuilder().build(new CacheLoader<TypeToken<?>, Set<Invokable<?, 
?>>>() {
             public Set<Invokable<?, ?>> load(TypeToken<?> key) {
                ImmutableSet.Builder<Invokable<?, ?>> builder = 
ImmutableSet.<Invokable<?, ?>> builder();
-               for (Constructor<?> ctor : 
key.getRawType().getDeclaredConstructors()) {
-                  ctor.setAccessible(true);
+               Class<?> raw = key.getRawType();
+               for (Constructor<?> ctor : raw.getDeclaredConstructors()) {
+                  if (!coreJavaClass(raw)) {
+                     // In JDK 11 up to 14, the only uses for 
`java.beans.ConstructorProperties` annotation
+                     // are in the `java.awt`, `java.beans` and `javax.swing` 
packages.
+                     // Since these constructors are public, there is no need 
to call `setAccessible()`

Review comment:
       Note 1: `isAccessible()` is not useful. I think you meant `canAccess()`.
   Note 2: if if understand correctly, this code does not look performance 
sensitive: it is only called once for each `TypeToken` (i.e. for each class?) 
in the lifetime of an application, since I see no expiration for this cache.
   
   > I think it makes sense to consider that potential improvement - here and 
also in methodsForTypeToken - as a separate PR if desired, though.
   
   I would also prefer to have the original PR in as it fixes the problem, then 
I am also happy to follow-up with another to add the `canAccess()` checks 
everywhere.
   Let me know how you want to proceed.

##########
File path: core/src/main/java/org/jclouds/reflect/Reflection2.java
##########
@@ -153,15 +153,23 @@
          .newBuilder().build(new CacheLoader<TypeToken<?>, Set<Invokable<?, 
?>>>() {
             public Set<Invokable<?, ?>> load(TypeToken<?> key) {
                ImmutableSet.Builder<Invokable<?, ?>> builder = 
ImmutableSet.<Invokable<?, ?>> builder();
-               for (Constructor<?> ctor : 
key.getRawType().getDeclaredConstructors()) {
-                  ctor.setAccessible(true);
+               Class<?> raw = key.getRawType();
+               for (Constructor<?> ctor : raw.getDeclaredConstructors()) {
+                  if (!coreJavaClass(raw)) {
+                     // In JDK 11 up to 14, the only uses for 
`java.beans.ConstructorProperties` annotation
+                     // are in the `java.awt`, `java.beans` and `javax.swing` 
packages.
+                     // Since these constructors are public, there is no need 
to call `setAccessible()`

Review comment:
       Note 1: `isAccessible()` is not very useful. I think you meant 
`canAccess()`.
   Note 2: if if understand correctly, this code does not look performance 
sensitive: it is only called once for each `TypeToken` (i.e. for each class?) 
in the lifetime of an application, since I see no expiration for this cache.
   
   > I think it makes sense to consider that potential improvement - here and 
also in methodsForTypeToken - as a separate PR if desired, though.
   
   I would also prefer to have the original PR in as it fixes the problem, then 
I am also happy to follow-up with another to add the `canAccess()` checks 
everywhere.
   Let me know how you want to proceed.




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