AbstractMethodError reported in jenkinsci#490 (comment)

Author: jglick

src/main/java/com/cloudbees/plugins/credentials/CredentialsProvider.java

@@ -1190,7 +1190,10 @@ public <C extends Credentials> List<C> getCredentialsInItemGroup(@NonNull Class<
         if (Util.isOverridden(CredentialsProvider.class, getClass(), "getCredentials", Class.class, ItemGroup.class, org.acegisecurity.Authentication.class, List.class)) {
             return getCredentials(type, itemGroup, authentication == null ? null : org.acegisecurity.Authentication.fromSpring(authentication), domainRequirements);
         }
-        throw new AbstractMethodError("Implement getCredentialsInItemGroup");
+        if (Util.isOverridden(CredentialsProvider.class, getClass(), "getCredentials", Class.class, ItemGroup.class, org.acegisecurity.Authentication.class)) {
+            return getCredentials(type, itemGroup, authentication == null ? null : org.acegisecurity.Authentication.fromSpring(authentication));
+        }
+        throw new AbstractMethodError("Implement getCredentialsInItemGroup from " + getClass());
     }
 
     /**

src/main/java/com/cloudbees/plugins/credentials/CredentialsStore.java

@@ -189,7 +189,7 @@ public boolean hasPermission2(@NonNull Authentication a, @NonNull Permission per
                 Permission.class)) {
             return hasPermission(org.acegisecurity.Authentication.fromSpring(a), permission);
         }
-        throw new AbstractMethodError("Implement hasPermission2");
+        throw new AbstractMethodError("Implement hasPermission2 from " + getClass());
     }
 
     /**