Please make sure you install JDBC driver jar as bundle in OSGI console /system/console/bundles (make sure it's active) and then configure 'Apache Sling Connection Pooled DataSource' in /system/console/configMgr. Tested this on 6.3.1.2 and it works fine.

Azure AD B2C can act as IDP and add AEM as RP. Refer to following https://azuremarketplace.microsoft.com/en-us/marketplace/apps/aad.adobeexperiencemanagerSAML based SSO with Azure AD B2C as an IDP – Humble BitsHTH.ThanksWasil

You can create a custom widget, have a look at this blog : AEM Forms: Using Custom Widget in Adaptive Form - Experience Delivers

Try to make changes as mentioned on [1] in domain_mssql.xml [1] https://muhammadkhojaye.blogspot.in/2014/01/jboss-deployment-war-error-on-startup.html  

With turnkey installer we have Java 1.8 update 74, you can try that. You should use pre-configured Jboss. Go through supportability matrix as well [1][1] https://helpx.adobe.com/aem-forms/6-2/AEM-forms-JEE-supported-platforms.html

Issue seems to be with JVM. Check[1],[2]. If you are using non-turnkey installer try to update Java.[1] http://stackoverflow.com/questions/25406681/jvm-crash-exception-access-violation[2]https://www.java.com/en/download/help/exception_access.xml

See the page : https://helpx.adobe.com/aem-forms/6-2/prepopulate-adaptive-form-fields.html#AEMFormsprefillservice

Sid,Try to create a framework extension bundle so that javax.mail.* are provided along with system packages. See below links :https://helpx.adobe.com/experience-manager/kb/CreatingExtension.htmlhttp://stackoverflow.com/questions/787985/apache-felix-what-are-extension-bundlesThanksWasil

User must have administrator privileges. Looks like some privileges are missing.-Wasil

Add PDF Generator user as mentioned here : http://help.adobe.com/en_US/livecycle/11.0/InstallWebSphere/WS1a95df6a070ac5e3-71ddef0d12fb663fdfc-7ff4.2.html#WS1a95df6a070ac5e3-71ddef0d12fb663fdfc-7ff0.2Restart the server.-Wasil