[Akonadi] [Bug 378436] New: Instance create job emits result too early

[Andre Heinecke]

https://bugs.kde.org/show_bug.cgi?id=378436

            Bug ID: 378436
           Summary: Instance create job emits result too early
           Product: Akonadi
           Version: GIT (master)
          Platform: Other
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: NOR
         Component: Account Wizard
          Assignee: kdepim-bugs at kde.org
          Reporter: aheinecke at intevation.de
  Target Milestone: ---

Created attachment 104869
  --> https://bugs.kde.org/attachment.cgi?id=104869&action=edit
Hack to fix racyness

The KMail AccountWizard can fail with: "Could not convert value of setting
'AccountIdentity' to required type."

This happens for me in a fairly slow VM (one core, slow disk). But there
happened very reliably.

The reason appears to be that Accountwizard's Resource::instanceCreateResult is
called too early before the resource is fully created. 

Where:
   QDBusInterface iface(QStringLiteral("org.freedesktop.Akonadi.Resource.") +
m_instance.identifier(), QStringLiteral("/Settings"));

isValid but the interface does not provide all Methods. The debug output
surrounding this is:

    org.kde.pim.accountwizard: Setting up  "AccountIdentity"  for agent 
"akonadi_imap_resource_12"
    org.kde.pim.accountwizard: Did not find D-Bus method:  "setAccountIdentity"
 available methods are:
    org.kde.pim.accountwizard: "destroyed(QObject*)"
    org.kde.pim.accountwizard: "destroyed()"
    org.kde.pim.accountwizard: "objectNameChanged(QString)"
    org.kde.pim.accountwizard: "deleteLater()"
    org.kde.pim.accountwizard: "_q_reregisterTimers(void*)"
    org.kde.pim.accountwizard:
"_q_serviceOwnerChanged(QString,QString,QString)"

Version does not really match. It was with accountwizard 0.2 from the current
KDE Neon devedition gitstable ( 4:16.12.3+p16.04+git20170310.0110-0 ).

Attached Hack fixes the Problem for me but is of course not a real fix as it
just adds a sleep before accessing the resource interface.

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