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Jozef Koval
5da646f977
**Problem** -java-home wasn't fully honored on Windows: sbtw rejected the single-dash form, silently ignored bad paths, and didn't propagate the JDK to the sbt/sbtn child; sbt.bat didn't fix up PATH/JAVACMD, and a project .java-version could override an explicit -java-home. Residual #963 gaps (the original javac-from-PATH bug was fixed long ago). **Solution** New SelectedJava seam in sbtw resolves the JDK once (--java-home > JAVACMD > JAVA_HOME > PATH) and applies one env overlay on every launch path; sbt.bat's handler now sets PATH/JAVACMD and a one-hop marker so .java-version defers to an explicit -java-home. JDK_HOME > JAVA_HOME (the issue's "even more desired" ordering) is intentionally **not** implemented — it only mattered when JAVA_HOME pointed at a JRE without javac, and JDK 17+ (required by sbt 2.x) no longer ships standalone JREs, so JAVA_HOME always resolves to a full JDK.
sbt
sbt is a build tool for Scala, Java, and more.
For general documentation, see https://www.scala-sbt.org/.
sbt 2.x
This is the 2.x series of sbt. The source code of sbt is split across several GitHub repositories, including this one.
- sbt/io hosts
sbt.iomodule. - sbt/zinc hosts Zinc, an incremental compiler for Scala.
- sbt/sbt, this repository hosts modules that implement the build tool.
Other links
- Setup: Describes getting started with the latest binary release.
- FAQ: Explains how to get help and more.
- sbt/sbt-zero-seven: hosts sbt 0.7.7 and earlier versions
Issues and Pull Requests
Please read CONTRIBUTING carefully before opening a GitHub Issue or a pull request.
If you're looking for an idea for a contribution, issues labeled with good first issue or help wanted might be good starting points.
If you would like to ask questions about sbt, there's sbt channel on Scala Discord, but it would be good to gather questions on Stackoverflow.
license
See LICENSE.