8357657: [11u][windows] cannot stat '/jdk.crypto.ec/*': No such file or directory

[mrserb]

This patch provides a workaround for a bug in the latest version of Cygwin. Only JDK 11 is affected; newer versions are not impacted because the makefiles were updated by JDK-8220383.

The issue is that:
ifneq ($(wildcard $(IMPORT_MODULES_CLASSES)/$(MODULE)), )
returns results even when IMPORT_MODULES_CLASSES is empty/unset. This causes the build to incorrectly search for a module like /jdk.crypto.ec/, which fails because the directory does not exist.

The fix is to first check whether IMPORT_MODULES_CLASSES is set. If it is, we define IMPORT_MODULE_DIR as $(IMPORT_MODULES_CLASSES)/$(MODULE) and use this property consistently throughout the build. This matches the approach introduced in JDK-8220383 for this codepath.

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Progress

• Change must be properly reviewed (1 review required, with at least 1 Reviewer)
• Change must not contain extraneous whitespace
• Commit message must refer to an issue
• JDK-8357657 needs maintainer approval

Issue

• JDK-8357657: [11u][windows] cannot stat '/jdk.crypto.ec/*': No such file or directory (Bug - P3)

Reviewing

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Checkout this PR locally:
$ git fetch https://git.openjdk.org/jdk11u-dev.git pull/3035/head:pull/3035
$ git checkout pull/3035

Update a local copy of the PR:
$ git checkout pull/3035
$ git pull https://git.openjdk.org/jdk11u-dev.git pull/3035/head

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$ git pr checkout 3035

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https://git.openjdk.org/jdk11u-dev/pull/3035.diff

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[bridgekeeper]

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[openjdk]

❗ This change is not yet ready to be integrated.
See the Progress checklist in the description for automated requirements.

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[mrserb]

/touch

[openjdk]

@mrserb The pull request is being re-evaluated and the inactivity timeout has been reset.

[mlbridge]

Webrevs

• 00: Full (bc43ddef)

[bridgekeeper]

@mrserb This pull request has been inactive for more than 4 weeks and will be automatically closed if another 4 weeks passes without any activity. To avoid this, simply issue a /touch or /keepalive command to the pull request. Feel free to ask for assistance if you need help with progressing this pull request towards integration!

[mrserb]

/keepalive

[openjdk]

@mrserb The pull request is being re-evaluated and the inactivity timeout has been reset.