Unable to get PeopleSoft landing page after sign in due to error CPCServletService::DoService -> nPcmReturn=24: Failed to start the Java Virtual Machine.

Unable to get PeopleSoft landing page after sign in due to error CPCServletService::DoService -> nPcmReturn=24: Failed to start the Java Virtual Machine.

If you get following set of errors even after application services bounce then please try this solution.

Error:

PSAPPSRV.29571 (13) [2021-07-08T06:41:20.869 XXX@172.IP (IE 11.0; WIN10) ICScript] OYwwgOA89L98oA 3980798699840058369 XXXX(1) Could not load the JavaVM library jvm
PSAPPSRV.29571 (13) [2021-07-08T06:41:21.161 XXX@172.IP (IE 11.0; WIN10) ICScript] OYwwgOA89L98oA 3980798699840058369 PEOPLE1 (1) CPCServletService::DoService -> nPcmReturn=24: Failed to start the Java Virtual Machine. (2,766) PT_SECURITY.iScript.OnExecute  Name:getSIDHTML  PCPC:199  Statement:6
Called from:PT_FAV.AddToFav.OnExecute  Name:getSIDHTML  Statement:32
Called from:PT_FAV.AddToFav.OnExecute  Name:setHTML  Statement:120
Called from:PT_FAV.AddToFav.OnExecute  Name:AddToFav  Statement:23
Called from:PT_POPUP.Popup.OnExecute  Name:Popup  Statement:15
Called from:PT_BRANDING.IframeHeader.OnExecute  Name:setAddToFavPopupHTML  Statement:101
Called from:PT_BRANDING.IframeHeader.OnExecute  Name:SetAddFav  Statement:98

Solution ->

First check the what JAVA_HOME is set. Make sure JAVA_HOME directory exists.

Check PATH, LIBPATH and Shell profile ( of Linux server) and make sure jdk path is accurate.

Update correct JDK path , exit from your id and login back and rev-verify if environment variables are pointing to correct JAVA_HOME path.

Shutdown App services , configure App Server, clear cache and bring up services.

This should fix the issue.

Integration Gateway Message Unmarshalling: Could not Parse the XML message String. (158,10415)

Integration Gateway Message Unmarshalling: Could not Parse the XML message String. (158,10415) 

You will notice following error while pinging / testing node from Integration Gateway or Node definition. If you see following error in Logs then this solution will work. 

errorLog.html :

com.peoplesoft.pt.common.XmlException: [Parsing error] msg: Fatal Error: at file null line: 2 column: 359 message: An invalid XML character (Unicode: 0xb) was found in the CDATA section. 

Solution: 

Simply remove special characters from password and try again. It will work.

Unable to open opatch lsinventory due to error is not accessible. Please set appropriate JAVA_HOME and run again.

  Error :
    Unable to open opatch lsinventory due to error <JDK> is not accessible.
    Please set appropriate JAVA_HOME and run again.
     
  Solution:
      This error occurs when listing Weblogic Patches.
      This error occurs because of invalid path of JAVA_HOME.
      TO fix this change JAVA_HOME path in hidden file .globalEnv.properties present at $ORACLE_HOME/oui
     
      JAVA_HOME=<Latest JAVA_HOME Path>
   JAVA_HOME_1_8=<Latest JAVA_HOME Path>