2100578 - Enterprise Manager Setup - EMAdmin page not accessible "500 Internal Server Error" - SAP Solution Manager 7.1

You're performing the setup of the CA Enterprise Manager followint the wiki http://wiki.scn.sap.com/wiki/display/TechOps/IntroscopeEMUpgrade.

In step "EM Admin UI" you cannot access the following URL:

http://<host>:<port>/webdynpro/dispatcher/sap.com/tc~webadministrator~wilyadmin/EMAdmin

The following error is thrown:

500   Internal Server Error SAP NetWeaver Application Server 7.00/Java AS 7.00    Failed to process request. Please contact your system administrator.

In the defaultTrace of the Solution Manager you find the following error:

1.5�#0026B9FD490400510000004200004030000507BD9E7ADEEC#1415885872618#com.sap.tc.webdynpro.sessionmanagement#sap.com/tc~wd~dispwda#com.sap.tc.webdynpro.sessionmanagement.ExceptionHandler.handleThrowable#SCHULZ#88##D20F46026B3911E4BAFE000001246552#d20f46026b3911e4bafe000001246552-0#d20f46026b3911e4bafe000001246552#SAPEngine_Application_Thread[impl:3]_13##0#0#Error#1#/System/UserInterface#Java###Exception occured during processing of Web Dynpro application {0}. The causing exception is nested.
[EXCEPTION]
 {1}#2#sap.com/tc~webadministrator~wilyadmin/EMAdmin#java.lang.NumberFormatException: null
 at java.lang.Integer.parseInt(Integer.java:438)
 at java.lang.Integer.parseInt(Integer.java:520)
 at com.sap.sup.admin.wily.jdbc.EMInfo.getUrlGenerator(EMInfo.java:204)
 at com.sap.smd.wdp.wily.emsetup.WilyEMAdminCenter.getEmInstancesEMWorkstationURL(WilyEMAdminCenter.java:895)
 at com.sap.smd.wdp.wily.emsetup.wdp.InternalWilyEMAdminCenter.getEmInstancesEMWorkstationURL(InternalWilyEMAdminCenter.java:568)
 at com.sap.smd.wdp.wily.emsetup.wdp.IPrivateWilyEMAdminCenter$IEmInstancesElement.wdGetString(IPrivateWilyEMAdminCenter.java:2146)
 at com.sap.tc.webdynpro.progmodel.context.AttributePointer.getString(AttributePointer.java:176)
 at com.sap.tc.webdynpro.clientserver.data.DataContainer.getString(DataContainer.java:915)
 at com.sap.tc.webdynpro.clientserver.uielib.standard.impl.LinkToURL.getReference(LinkToURL.java:244)
 at com.sap.tc.webdynpro.clientserver.uielib.standard.uradapter.LinkToURLAdapter$LinkProxy.getReference(LinkToURLAdapter.java:302)
 at com.sap.tc.ur.renderer.ie6.LinkRenderer.render(LinkRenderer.java:53)

• Solution Manager 7.1

Enterprise Manager Setup - EMAdmin page not accessible "500 Internal Server Error" - SAP Solution Manager 7.1 , KBA , SV-SMG-DIA-WLY-EMS , Enterprise Manager Setup , Problem