NPE is thrown when access to a web content without associated display page through friendly URL

• Type: Regression Bug
• Status: Closed
• Resolution: Fixed
• Affects Version/s: Master
• Fix Version/s: 7.3.X, 7.4.3.9 CE GA9, Master
• Component/s: Friendly URL Service
• Labels:
  • QA-AUTOMATION
  • ee-ts
  • liferay-fixpack-dxp-4-7310
  • liferay-update-dxp-4-7310
  • liferay-update-dxp-5-7413
  • pt-app-security-review
• Branch Version/s:
  7.3.x
• Backported to Branch:
  Committed
• Story Points: 1
• Fix Priority: 4
• Last Working Version:
  7.4.13 DXP U4
• Sprint: LIMA | QA Sprint 17
• Git Pull Request: https://github.com/liferay-lima/liferay-portal/pull/2650
• QA Test Name:
  • LocalFile.DisplayPageTemplatesForWebContentArticle#ViewNoDisplayPageTemplate
  • LocalFile.MSBUpgrade#ViewMSBAndAddContentPageAfterUpgrade71102
  • LocalFile.MSBUpgrade#ViewMSBAndAddContentPageAfterUpgrade713
• QA Test Score: 14

Step to reproduce:

1. Add a web content without associated display page
2. Access to the web content through display page friendly URL
   • http://localhost:8080/web/guest/w/urlTitle

Expected Results:
The requested resource could not be found. should be shown.

Actual Results:
The page is empty. Additionally, the following NPE is thrown in console.

2022-01-18 07:04:43.907 ERROR [http-nio-8080-exec-10][I18nFilter:62] java.lang.NullPointerException
java.lang.NullPointerException: null
        at com.liferay.portal.service.permission.LayoutPermissionImpl.contains(LayoutPermissionImpl.java:141) ~[portal-impl.jar:?]
        at com.liferay.portal.service.permission.LayoutPermissionImpl.contains(LayoutPermissionImpl.java:161) ~[portal-impl.jar:?]
        at com.liferay.portal.kernel.service.permission.LayoutPermissionUtil.contains(LayoutPermissionUtil.java:72) ~[portal-kernel.jar:?]
        at com.liferay.friendly.url.internal.servlet.FriendlyURLServlet.getRedirect(FriendlyURLServlet.java:187) ~[?:?]
        at com.liferay.friendly.url.internal.servlet.FriendlyURLServlet.service(FriendlyURLServlet.java:414) ~[?:?]
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:764) ~[servlet-api.jar:4.0.FR]
        at com.liferay.portal.servlet.ServletAdapter.service(ServletAdapter.java:98) ~[portal-impl.jar:?]
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:764) ~[servlet-api.jar:4.0.FR]
        at com.liferay.shielded.container.internal.proxy.ServletWrapper.service(ServletWrapper.java:113) ~[com.liferay.shielded.container.impl.jar:?]

Reproduced on:
Tomcat 9.0.56 + MySQL 5.7. Portal master GIT ID: ff82ec64faca207c6d69d7b421be9d2002ad94bf.

Cannot be reproduced on:
Tomcat 9.0.56 + MySQL 5.7. Portal 7.4.13-DXP-U4.