JDK-8133882 : javac -upgrademodulepath
  • Type: Enhancement
  • Component: tools
  • Sub-Component: javac
  • Affected Version: 9
  • Priority: P3
  • Status: Open
  • Resolution: Unresolved
  • Submitted: 2015-08-18
  • Updated: 2019-01-09
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Other
tbdUnresolved
Related Reports
Relates :  
JDK-8049692 - Re-examine upgradeable modules
Description
Currently javac (and indirectly, related tools like javadoc) provide a -upgrademodulepath option, but the impl does not match the corresponding runtime option.  

At runtime, the intent is that only upgradeable modules can be placed on the upgrade module path.
Comments
javac should check hashes for modules on the upgrade module path when such hashes are available (i.e. in the java.base module of the compilation environment), but this can be deferred to tbd_major.
21-04-2017
Need to determine the long term spec/disposition of this option (both javac and runtime)
20-07-2016
Reassign accordingly.
16-11-2015