Cannot publish a DDM content to remote site

• Type: Bug
• Status: Closed
• Resolution: Fixed
• Affects Version/s: Master
• Fix Version/s: 7.0.0 DXP FP30, 7.0.X EE, 7.0.4 CE GA5, 7.1.X, Master
• Component/s: Dynamic Data Mapping, Staging
• Labels:
  • NAT
  • fw_test_needed
  • liferay-digital-enterprise-70-sp5
  • liferay-fixpack-de-30-7010
  • staging_testing
• Branch Version/s:
  7.0.x
• Backported to Branch:
  Committed
• Fix Priority: 5
• Git Pull Request: https://github.com/brianchandotcom/liferay-portal/pull/48976

Steps to Reproduce:

1. Set up 2 liferay servers
2. Configure properties for remote staging on both servers:

   tunnel.servlet.hosts.allowed={IPs}
   tunneling.servlet.shared.secret={key}
   tunneling.servlet.shared.secret.hex=true
   auth.verifier.TunnelingServletAuthVerifier.hosts.allowed={IP}
   auth.verifier.pipeline=com.liferay.portal.security.auth.TunnelingServletAuthVerifier,com.liferay.portal.security.auth.BasicAuthHeaderAutoLogin,com.liferay.portal.security.auth.DigestAuthenticationAuthVerifier,com.liferay.portal.security.auth.ParameterAutoLogin,com.liferay.portal.security.auth.PortalSessionAuthVerifier
   

3. Start servers
4. Enable Remote Live staging between servers with all content types
5. Go to staged site server
6. Add form with text field
7. Save form
8. Publish to Live

Expected Result:
Form can be published remote live site.

Actual Result:
Publication fails.

The following error in Forms while importing its data has stopped the process: java.lang.RuntimeException: Unable to get class name from id 31507

Also reproducible with DDL Lists and Web Content Structures

Reproduced on:
Tomcat 8.0.32 + MySQL 5.7.17. Portal master GIT ID: f08886d834fd62d6422349a116834e6eef7a6708.

Not Reproducible on:
Tomcat 8.0.32 + MySQL 5.7.17. Portal ee-7.0.x GIT ID: 9496e46ec5a4c8d2e8656aebfb86e61e0723da8e.