2055773 - UME service fails to start with"XML Declaration not allowed here", which leads to J2EE Engine cannot be started

When you try to start J2EE Engine manually or it is being started automatically, however it is unable to get it started. You can find below error messages within log files under work folder:

In dev_serverX:
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[Thr  8] JLaunchIExitJava: exit hook is called (rc = -11113)
[Thr  8] SigISetIgnoreAction : SIG_IGN for signal 18
[Thr  8] JLaunchCloseProgram: good bye (exitcode = -11113)
-----------------------------------------------------------------------

In std_serverX.out:
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...re.server.ume.service.UMEServiceFrame [SAPEngine_System_Thread[impl:5]_103] Fatal:
  service com.sap.security.core.ume.service ================= ERROR =================
Core service com.sap.security.core.ume.service failed. J2EE Engine cannot be started.
com.sap.engine.frame.ServiceException: Start of UME service failed. Check help topic "Start of UME Service Failed". Technical details: Fatal Error: com.sap.engine.lib.xml.parser.ParserException: XML Declaration not allowed here.(ISO-8859-1, row:1, col:8)
.........
Caused by: com.sap.security.core.persistence.datasource.PersistenceException: Fatal Error: com.sap.engine.lib.xml.parser.ParserException: XML Declaration not allowed here.(ISO-8859-1, row:1, col:8)
.........
[Framework -> criticalShutdown] Core service com.sap.security.core.ume.service failed. J2EE Engine cannot be started.
com.sap.engine.core.Framework [SAPEngine_System_Thread[impl:5]_103] Fatal: Critical shutdown was invoked. Reason is: Core service com.sap.security.core.ume.service failed. J2EE Engine cannot be started.
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-11113, rc = -11113, ume service failed, J2EE Engine cannot be started, Java engine cannot start, xml, XML Declaration not allowed here, com.sap.security.core.persistence.datasource.PersistenceException, com.sap.engine.lib.xml.parser.ParserException, (ISO-8859-1, row:1, col:8), (:main:, row=1, col=8) , KBA , BC-JAS-SEC-UME , User Management Engine , Problem