JDK API mappings not working sometimes (?)

[armanbilge]

I put a dogfood test for this inside the site plugin.

[error] .../sbt-typelevel/site/src/main/scala/org/typelevel/sbt/site/TypelevelHeliumExtensions.scala:47:3: Could not find any member to link for "java.net.URL".
[error]   /**
[error]   ^
[error] one error found

$ java -version
openjdk version "11.0.15" 2022-04-19
OpenJDK Runtime Environment Homebrew (build 11.0.15+0)
OpenJDK 64-Bit Server VM Homebrew (build 11.0.15+0, mixed mode)

[satorg]

On temurin11 it fails as well:

$ java -version
openjdk version "11.0.15" 2022-04-19
OpenJDK Runtime Environment Temurin-11.0.15+10 (build 11.0.15+10)
OpenJDK 64-Bit Server VM Temurin-11.0.15+10 (build 11.0.15+10, mixed mode)

[armanbilge]

Aha, thanks for that. I was able to reproduce with temurin 11 on linux. We should add that to CI and fix it :)

[satorg]

And which JDK is it currently working on? Did you have it succeeding on any JVM locally?

[armanbilge]

It works on the JDK 8 and JDK 17 temurins used in CI.

[armanbilge]

Huh. Locally it fails for me even with temurin 17. Ok, this is pretty bizarre.

[DavidGregory084]

FWIW I have been seeing this intermittently on sbt-tpolecat too when running scripted tests

sbt:sbt-tpolecat> scripted
[info] Wrote /Users/davidgregory/Repos/sbt-tpolecat/plugin/target/scala-2.12/sbt-1.0/sbt-tpolecat-0.4.1+31-2f9e1eda+20220728-1550-SNAPSHOT.pom
[info] Main Scala API documentation to /Users/davidgregory/Repos/sbt-tpolecat/plugin/target/scala-2.12/sbt-1.0/api...
[info] compiling 1 Scala source to /Users/davidgregory/Repos/sbt-tpolecat/plugin/target/scala-2.12/sbt-1.0/classes ...
model contains 17 documentable templates
[error] /Users/davidgregory/Repos/sbt-tpolecat/plugin/src/main/scala/io/github/davidgregory084/ScalacOptions.scala:409:3: Could not find any member to link for "java.lang.Runtime#availableProcessors".
[error]   /** Configures the number of worker threads for the compiler backend.
[error]   ^
[error] one error found

[armanbilge]

@DavidGregory084 sure, but does sbt-tpolecat have something like this in its settings? It's a known issue but supposedly we solved it 😅

sbt-typelevel/settings/src/main/scala/org/typelevel/sbt/TypelevelSettingsPlugin.scala

Lines 294 to 314 in 195bfa5

	private val javaApiMappings = {
	// scaladoc doesn't support this automatically before 2.13
	val baseUrl = javaMajorVersion match {
	case v if v < 11 => url(s"https://docs.oracle.com/javase/${v}/docs/api/")
	case v => url(s"https://docs.oracle.com/en/java/javase/${v}/docs/api/java.base/")
	}
	doc / apiMappings ~= { old =>
	val runtimeMXBean = ManagementFactory.getRuntimeMXBean
	val oldSchool = Try(
	if (runtimeMXBean.isBootClassPathSupported)
	runtimeMXBean
	.getBootClassPath
	.split(File.pathSeparatorChar)
	.map(file(_) -> baseUrl)
	.toMap
	else Map.empty
	).getOrElse(Map.empty)
	val newSchool = Map(file("/modules/java.base") -> baseUrl)
	// Latest one wins. We are providing a fallback.
	oldSchool ++ newSchool ++ old
	}

[DavidGregory084]

Uhhhhh no 😆 I'm still confused that it's intermittent though in both cases