JDK-8198861 : 13.3: Discuss binary compatibility of splitting a module
  • Type: Enhancement
  • Component: specification
  • Sub-Component: language
  • Affected Version: 9,10
  • Priority: P4
  • Status: Open
  • Resolution: Unresolved
  • Submitted: 2018-03-01
  • Updated: 2018-03-01
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Related Reports
Relates :  
JDK-8198582 - Split java.sql to create module java.transaction.xa
Description
In JLS chapter 13 on binary compatibility, there is a section discussing compatible transformations for packages and modules (https://docs.oracle.com/javase/specs/jls/se9/html/jls-13.html#jls-13.3).

An issue that came before the CSR for review (JDK-8198582) involved moving some types in an existing to a new module that was in turn exported from the original module. This is also a compatible transformation and since it is expected to occur again in the future, it would be reassuring if the transformation were explicitly discussed in JLS chapter 13.