2172117 - Creation of New Role from backend dumps: PcdRuntimeException: unexpected lock exception when locking

• New Role From Backend/Role Upload is failing;
   
• Upon checking role upload logs (as per SAP Note 2011374 - How To: Collect Role Upload Logs on the Portal), the following logs are found:
  com.sapportals.portal.pcd.gl.LockingException: Creation of lock object failed
  Object already locked APPL_ID: com.sap.portal.pcd RES_ID
  pcd:portal_content<UPLOAD_TARGET_PATH> [Root exception is
  com.sapportals.portal.pcd.gl.LockingException: Object already locked APPL_ID: com.sap.portal.pcd RES_ID: com.sap.portal.pcd RES_ID
  pcd:portal_content<UPLOAD_TARGET_PATH>]
   at com.sapportals.portal.pcd.gl.LockHandle.create
  
• On defaultTrace the following exception is found:
  #Error#com.sap.portal.utilities.ThreadReporting##BC-PIN-PCD
  #sap.com/com.sap.portal.util.threadreporting
  #sap.com/tc~pp~admintls~role_upload_ui#com.sap.portal.utilities.ThreadReporting##
  #Thread[RoleUpload_1431600961255,5,Dedicated_Application_Thread]#Plain##
  Exception propagating Severity
  [EXCEPTION]
  java.lang.IllegalStateException: No parent
   at com.sapportals.portal.util.threadreporting.WritableThreadReport.getParentRecord(WritableThreadReport.java:511)
   at com.sapportals.portal.util.threadreporting.WritableThreadReport.getWritableParentRecord(WritableThreadReport.java:499)
   at com.sapportals.portal.util.threadreporting.WritableThreadReportRecord.getWritableParent(WritableThreadReportRecord.java:344)
   at com.sapportals.portal.util.threadreporting.WritableThreadReportRecord.propagateSeverity(WritableThreadReportRecord.java:384)
   at com.sap.portal.pcd.rolemigration.util.ThreadLogger.warning(ThreadLogger.java:240)
   at com.sap.portal.pcd.rolemigration.util.ThreadLogger.warning(ThreadLogger.java:211)
   at com.sap.portal.pcd.rolemigration.RoleMigrationObject.addDragAndRelateAttrs(RoleMigrationObject.java:5475)
   at com.sap.portal.pcd.rolemigration.RoleMigrationObject.save(RoleMigrationObject.java:5542)
   at com.sap.portal.pcd.rolemigration.RoleMigrationObject.migrate(RoleMigrationObject.java:1291)
   at com.sap.portal.pcd.rolemigration.RoleMigrationObject.doDependentObjects(RoleMigrationObject.java:5906)
   at com.sap.portal.pcd.rolemigration.RoleMigrationObject.save(RoleMigrationObject.java:5643)
   at com.sap.portal.pcd.rolemigration.RoleMigrationObject.save(RoleMigrationObject.java:5196)
   at com.sap.portal.pcd.rolemigration.RoleMigrationObject.migrate(RoleMigrationObject.java:1679)
   at com.sap.portal.pcd.rolemigration.RoleMigrationObject.migrate(RoleMigrationObject.java:763)
   at com.sap.portal.pcd.rolemigration.RoleMigrationThread.run(RoleMigrationThread.java:392)

• SAP NetWeaver Application Server Java
   
• SAP Enterprise Portal

configuration, com.sap.portal.pcd.rolemigration, role, migration, upload, backend, ABAP, PcdInconsistentUpdateException , KBA , EP-PIN-PCD-ROL-UPL , Role upload from ERP , Problem