using Microsoft JDK can error due to a missing Packages directory

[SingingBush]

I've had some users of Intellij D Language plugin report problems when using the Microsoft JDK. The project is built using Gradle and when doing the gradle build the resulting error is output:

/home/********/.sdkman/candidates/java/11.0.13-ms/Packages does not exist.

Adding a directory named Packages to the root of the ms JDK solves the problem: intellij-dlanguage/intellij-dlanguage#652 (comment)

I'm submitting here as there really shouldn't be a need for users to add a directory to their jdk and this 'Packages' directory is non-standard.

[karianna]

@SingingBush That looks like an SDKMan packaging issue to me, I think you'll need to report it there.

[SingingBush]

The linked comment had the path C:\Program Files\Microsoft\jdk-17.0.1.12-hotspot\Packages which isn't sdkman.

[karianna]

@SingingBush That directory doesn't come from the Microsoft MSI installer so I think it's SDKMan that's adding it.

[aaronjyoder]

This issue has caused me to switch away from the Microsoft distribution of OpenJDK. This is only an issue on the Microsoft distribution of the JDK, and it's unclear to me why it would be any different than any other vendor in this case.

Marking this issue as invalid feels unproductive to me when you are the only vendor who has this issue.

[karianna]

@aaronjyoder That folder structure doesn't come from our installers so I can only conclude that it's being added in error somehow via SDKman. Have you reported the issue there?

[SingingBush]

That's actually the point of my initial report, that the folder is not created by the installer. The point is that for some reason the Microsoft JDK expects it be there.

Adding it manually fixes the problem. So Microsoft either need to ensure the directory is created during installation or change the code that expects it to already exist and just create it when needed.

[SingingBush]

I wonder if it's something to do with this https://github.com/microsoft/openjdk-jdk11u/blob/659a4669208645420e151e78ab5fd3ac3808b310/src/java.base/share/classes/jdk/internal/jrtfs/ExplodedImage.java#L57

The javadoc mention that the modules folder will be under JAVA_HOME so presumably it expects the same for packages.