Is it SharePoint 2010 Code Bug - breakRoleInheritance ?

Question

Hi all,
I am writing this question to discuss following issue:
Initial Requirement        :              
we provided a custom sub site definition with feature which break permissions at site level and new user groups are created to manage permission for this sub site and various lists under this sub site.
4 different type of lists were provided with custom permission as per requirement.
Code used                          :              
web.BreakRoleInheritance(false,
true)   
à to break the permission
New Requirement          :               some more new lists to be created.
Solution Proposed          :               OOB
Issue                                    
when a new list is created using OOB under this sub site, permissions are shown already break in ribbon menu while all user groups are copied from root site (not from sub site).
If however we click on inherit permission on the new list, root site crash, all user groups become unavailable.
Similar issue found online:
https://social.technet.microsoft.com/Forums/sharepoint/en-US/2a3525e1-5852-41e1-8815-7e772d23b306/site-collection-unavailable-after-inheriting-permissions-in-a-slist-in-a-subsite?forum=sharepointadminprevious
Solution
OOB
Inherit permissions at sub site level
Stop inheriting permission at sub site level
Remove all not required users/groups
è
Now OOB new list creation will work as it should in normal scenario, i.e. permission will be inherited from sub site level.
Code change
web.BreakRoleInheritance(false)
à
will also serve the purpose and issue will be avoided
Query
whether this behavior is known and not an exceptional one.
What will be the RCA called as, coding issue ?
After a decent analysis, It looks like it’s a bug in the product and not a coding issue.
RCA:
As we have tried all the scenarios, we saw that bug exists only when the value of
clearSubscopes (second parameter) is true. But according to the Microsoft:
“If the securable object is a site, and the clearsubscopes parameter is true, the role assignments
for all child securable objects in the current site and in the sites which inherit role assignments from the current site must be cleared and those securable objects will inherit role assignments from the current site after this call.”
SP.SecurableObject.breakRoleInheritance(copyRoleAssignments, clearSubscopes) output:
1st Parameter
2nd Parameter
site groups
site permission
new list groups
new list permissions
Bug
TRUE
TRUE
copied
break
copied
Break
Yes
TRUE
FALSE
copied
break
copied
Inherit
No
FALSE
TRUE
clear
break
copied
Break
Yes
FALSE
FALSE
clear
break
clear
Inherit
No
SP.SecurableObject.breakRoleInheritance(copyRoleAssignments) output :
1st Parameter
2nd Parameter
site groups
site permission
new list groups
new list permissions
Bug
TRUE
NA
copied
break
copied
Inherit
No
FALSE
NA
clear
break
clear
inherit
No

Answer 1

From the errors you got, it is obvoius that you are using a JDBC-ODBC driver. Right? Now, these types of drivers have a lot of limitations, like - you should get the data in the same order as the columns in the result set, etc. The use of cursors may also be one of its limitations since it is a more complex operation than obtaining results set data. What I can suggest to you is to use a Type 4 JDBC driver for your application and read its capabilities and limitations.
You can get a list of drivers for your DBMS at http://industry.java.sun.com/products/jdbc/drivers. And better yet, download the Oracle JDBC driver
Hope this helps