Uploading image via Media Gallery returns NPE error

• Type: Regression Bug
• Status: Closed
• Resolution: Fixed
• Affects Version/s: 7.0.0 M3
• Fix Version/s: 7.0.0 M3
• Component/s: Documents & Media, Media Gallery widget
• Labels: None
• Fix Priority: 4
• Git Pull Request: https://github.com/brianchandotcom/liferay-portal/pull/21951

Steps to reproduce issue:

1. Add Media Gallery portlet
2. In MG Configurations, check the following:
   • Show Actions
   • Show Folder Menu
   • Show Navigation Links
   • Show Search
3. Under Folders Listing > Root Folder, click "Select" > Home
4. Save Configuration settings
5. Click "Add Media" > Basic Document
   • Select an image file to upload
   • Give image file a title
   • Publish

Expected result: Image publishes to Media Gallery with no errors or exceptions
Actual result: Image publishes to Media Gallery, but portal throws a console error (see below)

18:06:11,910 ERROR [RuntimePageImpl-2][IncludeTag:129] Current URL /web/guest/home?p_p_id=31_INSTANCE_MHyPdsdy7eCE&p_p_lifecycle=0&p_p_state=normal&p_p_mode=view&p_p_col_id=column-1 generates exception: null
java.lang.NullPointerException
        at com.liferay.portlet.documentlibrary.service.permission.DLFileShortcutPermission.contains(DLFileShortcutPermission.java:54)
        at org.apache.jsp.html.portlet.image_005fgallery_005fdisplay.view_005fimages_jsp._jspService(view_005fimages_jsp.java:1036)
        at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
        at com.liferay.portal.servlet.DirectRequestDispatcher.include(DirectRequestDispatcher.java:57)
        at com.liferay.portal.servlet.ClassLoaderRequestDispatcherWrapper.doDispatch(ClassLoaderRequestDispatcherWrapper.java:75)
        at com.liferay.portal.servlet.ClassLoaderRequestDispatcherWrapper.include(ClassLoaderRequestDispatcherWrapper.java:52)
        at com.liferay.taglib.util.IncludeTag.include(IncludeTag.java:312)
        at com.liferay.taglib.util.IncludeTag.doInclude(IncludeTag.java:193)
        at com.liferay.taglib.util.IncludeTag.doEndTag(IncludeTag.java:84)
        at org.apache.jsp.html.portlet.image_005fgallery_005fdisplay.view_jsp._jspx_meth_liferay_002dutil_005finclude_005f2(view_jsp.java:1400)
        at org.apache.jsp.html.portlet.image_005fgallery_005fdisplay.view_jsp._jspService(view_jsp.java:1073)
        at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
        at com.liferay.portal.servlet.DirectRequestDispatcher.include(DirectRequestDispatcher.java:57)
        at com.liferay.portal.servlet.ClassLoaderRequestDispatcherWrapper.doDispatch(ClassLoaderRequestDispatcherWrapper.java:75)
        at com.liferay.portal.servlet.ClassLoaderRequestDispatcherWrapper.include(ClassLoaderRequestDispatcherWrapper.java:52)
        at com.liferay.taglib.util.IncludeTag.include(IncludeTag.java:312)
        at com.liferay.taglib.util.IncludeTag.doInclude(IncludeTag.java:193)
        at com.liferay.taglib.util.IncludeTag.doEndTag(IncludeTag.java:84)