8256809: Annotation processing causes NPE during flow analysis

[kvergizova]

I'd like to backport JDK-8256809 to 15u for parity with 11u.
The patch applies cleanly.
Tested with tier1; new test fails without the patch, passes with it.

---

Progress

• Change must not contain extraneous whitespace
• Commit message must refer to an issue
• Change must be properly reviewed

Issue

• JDK-8256809: Annotation processing causes NPE during flow analysis

Reviewing

Using git

Checkout this PR locally:
$ git fetch https://git.openjdk.java.net/jdk15u-dev pull/59/head:pull/59
$ git checkout pull/59

Update a local copy of the PR:
$ git checkout pull/59
$ git pull https://git.openjdk.java.net/jdk15u-dev pull/59/head

Using Skara CLI tools

Checkout this PR locally:
$ git pr checkout 59

View PR using the GUI difftool:
$ git pr show -t 59

Using diff file

Download this PR as a diff file:
https://git.openjdk.java.net/jdk15u-dev/pull/59.diff

[bridgekeeper]

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[openjdk]

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

[openjdk]

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

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

8256809: Annotation processing causes NPE during flow analysis

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[mlbridge]

Webrevs

• 00: Full (9de630a4)

[kvergizova]

/integrate

[openjdk]

@kvergizova Pushed as commit 14df120.

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