> If there are two threads calling `Executable.hasRealParameterData()` under 
> race and the first one writes into volatile `Executable.parameters` field 
> (doing _releasing store_) and the second thread reads non-null value from the 
> same field (doing acquiring read) then it must read exactly the same value 
> written into `hasRealParameterData` within `privateGetParameters()`. The 
> reason for this is that we assign `hasRealParameterData` before  _releasing 
> store_.
> 
> In the opposite case (_acquiring read_ reads null) the second thread writes 
> the value itself and returns it from the method so there is no change in 
> behavior.

Сергей Цыпанов has updated the pull request incrementally with one additional 
commit since the last revision:

  Update src/java.base/share/classes/java/lang/reflect/Executable.java
  
  Co-authored-by: liach <7806504+li...@users.noreply.github.com>

-------------

Changes:
  - all: https://git.openjdk.org/jdk/pull/9143/files
  - new: https://git.openjdk.org/jdk/pull/9143/files/711e175f..e1da00b2

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=9143&range=05
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=9143&range=04-05

  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/9143.diff
  Fetch: git fetch https://git.openjdk.org/jdk pull/9143/head:pull/9143

PR: https://git.openjdk.org/jdk/pull/9143

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