2185344 - Comparison method violates its general contract in PI Integration Builder

• Working in the Process Integration (PI) or Process Orchestration (PO) Integration Builder tools you get the error "Comparison method violates its general contract", when making changes to objects.
• This can manifest in different ways e.g. opening objects, saving objects, working with Change Lists, with Integrated Configuration Objects (ICO's) etc
• If you trace the issue e.g. using the steps in SAP Note 1891480 How to enable logging in Java WebStart console
  Thrown:
  com.sap.aii.utilxi.swing.framework.FrameworkException: Internal problem occurred
  at com.sap.aii.utilxi.swing.toolkit.ExceptionDialog.init(ExceptionDialog.java:126)...
  ...Caused by: java.lang.IllegalArgumentException: Comparison method violates its general contract!
  
  

"Image/data in this KBA is from SAP internal systems, sample data, or demo systems. Any resemblance to real data is purely coincidental."

• SAP NetWeaver 7.3
• SAP enhancement package 1 for SAP NetWeaver 7.3
• SAP NetWeaver 7.4

Process Integration 7.30, PI 7.30, Process Integration 7.31, PI 7.31, Process Orchestration 7.4, PI 7.4, PO 7.4, XI, Comparison method violates its general contract! See error logs for details , KBA , BC-XI-IBC , Integration Builder - Configuration , BC-XI-IBD , Integration Builder - Design , BC-XI-IBF , Framework , Problem