8286444: javac errors after JDK-8251329 are not helpful enough to find root cause

[yan-too]

Useful improvement made by Christoph Langer following JDK-8251329. Regtests run fine; expecting to add JDK-8286855 as a follow-up. Clean backport with only copyright date difference.

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Progress

• Change must not contain extraneous whitespace
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Issue

• JDK-8286444: javac errors after JDK-8251329 are not helpful enough to find root cause

Reviewing

Using git

Checkout this PR locally:
$ git fetch https://git.openjdk.org/jdk13u-dev pull/365/head:pull/365
$ git checkout pull/365

Update a local copy of the PR:
$ git checkout pull/365
$ git pull https://git.openjdk.org/jdk13u-dev pull/365/head

Using Skara CLI tools

Checkout this PR locally:
$ git pr checkout 365

View PR using the GUI difftool:
$ git pr show -t 365

Using diff file

Download this PR as a diff file:
https://git.openjdk.org/jdk13u-dev/pull/365.diff

[bridgekeeper]

👋 Welcome back yan! A progress list of the required criteria for merging this PR into master will be added to the body of your pull request. There are additional pull request commands available for use with this pull request.

[openjdk]

This backport pull request has now been updated with issue from the original commit.

[yan-too]

/clean

[openjdk]

@yan-too This backport pull request is now marked as clean

[openjdk]

@yan-too This change now passes all automated pre-integration checks.

After integration, the commit message for the final commit will be:

8286444: javac errors after JDK-8251329 are not helpful enough to find root cause

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[mlbridge]

Webrevs

• 00: Full (c4e4c995)

[yan-too]

/integrate

[openjdk]

Going to push as commit 36be252.

[openjdk]

@yan-too Pushed as commit 36be252.

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