Apps DBA Workshop

Scaling of Database Instance for Oracle EBS R12.2 failing with the below listed Error: StackTrace: java.lang.NullPointerException         at oracle.apps.ad.context.CloneContext.preserveOldPortSettings(CloneContext.java:5527)         at oracle.apps.ad.context.CloneContext.promptForPortPool(CloneContext.java:5716)         at oracle.apps.ad.context.CloneContext.getInputDBRACInitial(CloneContext.java:3389)         at oracle.apps.ad.context.CloneContext.getInputFromUsers(CloneContext.java:2226)         at oracle.apps.ad.context.CloneContext.doClone(CloneContext.java:959)         at oracle.apps.ad.context.CloneContext.main(CloneContext.java:8059) RC-50208: Warning: Exception  in method preserveOldPortSettings Raised by oracle.apps.ad.context.CloneContext Started testing the availabilty of ports in port pool 6  Checking  Database Port on dc2prpn...