Subscription e-mails are not sent when Dynamic Subscription Limit is set to 0

• Type: Bug
• Status: Closed
• Resolution: Fixed
• Affects Version/s: 7.1.X, 7.2.X, 7.3.X, Master
• Fix Version/s: 7.2.10 DXP FP11, 7.2.10.4 DXP SP4, 7.2.X, 7.3.10 DXP FP1, 7.3.10.1 DXP SP1, 7.3.6 CE GA7, 7.3.X, 7.4.13 DXP GA1, Master
• Component/s: Content Display Widgets > Asset Publisher widget
• Labels:
  • ee-ts
  • liferay-dxp-72-sp4
  • liferay-dxp-73-sp1
  • liferay-fixpack-dxp-1-7310
  • liferay-fixpack-dxp-11-7210
• Branch Version/s:
  7.3.x, 7.2.x
• Backported to Branch:
  Committed
• Fix Priority: 4
• Git Pull Request: https://github.com/liferay-echo/liferay-portal/pull/3503

Steps to reproduce:

1. Setup outgoing emails in Liferay (see LPS-104305 to configure them)
2. Change your Liferay user's email address so it isn't blacklisted.
3. Go to Control Panel > Configuration > System Settings > Assets > Asset Publisher (SYSTEM SCOPE)
4. Set Dynamic Subscription Limit to 0
5. Add an Asset Publisher to a page.
6. Enable the subscription in the the Asset Publisher configuration (from Display Settings - > Set and Enable).
7. Enable Email Subscriptions from the Subcriptions configuration tab.
8. Subscribe to the Asset Publisher.
9. Create a web content.
10. Force the subscription check using following Groovy script:

import com.liferay.registry.RegistryUtil

try {
  def registry = RegistryUtil.getRegistry()

  def serviceReference = registry.getServiceReference("com.liferay.asset.publisher.web.internal.messaging.AssetEntriesCheckerHelper")

// Use "com.liferay.asset.publisher.web.internal.messaging.AssetEntriesCheckerUtil" for 7.2 instead

  def assetEntriesCheckerHelper = registry.getService(serviceReference)

  def checkEntriesMethod = assetEntriesCheckerHelper.getClass().getMethod("checkAssetEntries")  

  checkEntriesMethod.invoke(assetEntriesCheckerHelper)
}
catch (Exception e) {
  e.printStackTrace(out)
}

Expected result:

• An e-mail is sent notifying the creation of the Web Content published in step 9.

Actual result:

• No e-mails are sent