Exa webinar to pitch EXERA for Fujitsu mainframe migration

The webinar arrives as Fujitsu mainframes are set to end sales in fiscal 2030 and support in fiscal 2035, putting migration planning on the agenda for the companies that still run core systems on them. The announcement frames the challenge as broader than swapping hardware: COBOL assets accumulated over years of modification, complex business logic, and the know-how of maintenance staff who understand the existing systems all have to be carried forward. With COBOL engineers aging and in short supply, the question is not only whether migration can be completed by the deadline but whether stable maintenance and operation can continue afterward.

The three migration paths carry different trade-offs. Rehost keeps existing assets but leaves COBOL staffing shortages and reliance on individual expertise unresolved; rewrite must preserve business logic while containing risk and cost as code moves to Java; rebuild risks inflating cost and timeline and disrupting core operations. A further concern is inheriting business knowledge, especially where design documents are missing and only current staff hold the details. Exa's EXERA is positioned as a rewrite-type approach that uses an AIM-compatible framework to move COBOL assets to Java while preserving business logic. The webinar also describes an approach where materials accumulated during migration feed generative AI for program analysis and test generation, supporting maintenance after the move, and it outlines a path of migrating first with existing assets and then modernizing in stages rather than a one-time full rebuild.