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2557238 - Blank Page appears in Enterprise Portal after upgrade

Symptom

You are getting blank screen when you are trying to logon to the enterprise portal, after doing an upgrade.

On checking the default trace with the timestamp, below error is seen :

Framework value is: 'ur'
[EXCEPTION]
java.lang.NullPointerException: while trying to invoke the method com.sapportals.portal.prt.service.laf.bo.less.Framework.getBaseLib() of a null object loaded from local variable 'framework'
 at com.sapportals.portal.prt.service.laf.bo.less.ThemeStructureManager.getBaseLibrary(ThemeStructureManager.java:172)
 at com.sapportals.portal.prt.service.laf.bo.less.ThemeStructureManager.getBaseLibrary(ThemeStructureManager.java:163)

Error thrown by Error Component:"com.sapportals.portal.prt.component.error.ErrorComponent". Cannot perform proper exception handling
[EXCEPTION]
java.lang.NullPointerException: while trying to invoke the method com.sapportals.portal.prt.service.laf.bo.less.Theme.getRootURI() of a null object loaded from local variable 'currentTheme'
 at com.sapportals.portal.prt.service.laf.LAFServiceLESS.includeThemePartInResponse(LAFServiceLESS.java:273)
 at com.sapportals.portal.prt.service.laf.LAFServiceDelegate.includeThemePartInResponse(LAFServiceDelegate.java:199)


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Environment

  • SAP NetWeaver 7.3
  • SAP enhancement package 1 for SAP NetWeaver 7.3
  • SAP NetWeaver 7.4
  • SAP NetWeaver 7.5

Product

SAP NetWeaver 7.3 ; SAP NetWeaver 7.4 ; SAP NetWeaver 7.5 ; SAP enhancement package 1 for SAP NetWeaver 7.3

Keywords

Enterprise Portal 7.0, EP 7.0, Enterprise Portal 7.01, EP 7.01, Enterprise Portal 7.02, EP 7.02, Enterprise Portal 7.03, EP 7.03, Enterprise Portal 7.1, EP 7.1, Enterprise Portal 7.2, EP 7.2, Enterprise Portal 7.30, EP 7.30, Enterprise Portal 7.31, EP 7.31, Enterprise Portal 7.40, EP 7.4, Enterprise Portal 7.50, EP 7.5, com.sapportals.portal.prt.service.laf.bo.less.Framework.getBaseLib, Framework value is: 'ur', com.sapportals.portal.prt.service.laf.bo.less.ThemeStructureManager.getBaseLibrary, com.sapportals.portal.prt.component.error.ErrorComponent, com.sapportals.portal.prt.service.laf.bo.less.Theme.getRootURI, com.sapportals.portal.prt.service.laf.LAFServiceLESS.includeThemePartInResponse , KBA , EP-PIN-TOL , Themes / Portal UI Theme Designer / Theme Editor , EP-PIN-NAV , Navigation , EP-PIN-PRT , Portal Runtime , Problem

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