RFR: 7902878: JCov loses module hashes

[Alexandre Iline]

On Sat, 17 Apr 2021 01:13:38 GMT, Leonid Kuskov <lkuskov at openjdk.org> wrote:

> This is the fix for https://bugs.openjdk.java.net/browse/CODETOOLS-7902878
> JREInstr writes empty ModuleHashes attribute into java.base/module-info that cause 
> a failure of the check of unavailability of qualified exports to upgradeable modules.
> The fix removes ModuleHashes attribute from java.base/module-info which isn't needed 
> for an instrumented JDK.(File: JREInstr.java)
> Also the update contains minor code cleanup found during fixing.

Marked as reviewed by shurailine (Committer).

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PR: https://git.openjdk.java.net/jcov/pull/14