Doctool hasn't been updated yet, see: https://github.com/gwtproject/gwt/pull/9780
You can install Java 8 for Mac x86 using https://adoptium.net/de/temurin/releases/?version=8 If you use a Mac with Apple Silicon and don't want to install Rosetta 2 you would need to install Java 8 from a different vendor, e.g. Azul Zulu or Amazon Corretto 8 (also available via brew.sh). Or you make/use a Docker image with Java 8 + ANT (+ Maven if you want to push the build to a corporate repository), mount the GWT SDK + Tools repositories and compile inside the container. -- J. stuckagain schrieb am Mittwoch, 22. März 2023 um 09:21:42 UTC+1: > Is it possible to compile GWT on a Mac ? Is it mandatory to use Java 8, > that version is no longer available. > > I have Java 11 installed, but I get the following error: > > > > compile: > > [mkdir] Created dir: > /Users/me/Projects/gwt/build/out/build_tools/doctool/bin > > [javac] Compiling 10 source files to > /Users/me/Projects/gwt/build/out/build_tools/doctool/bin > > [javac] -Xbootclasspath/p is no longer a supported option. > > [javac] Error: Could not create the Java Virtual Machine. > > [javac] Error: A fatal exception has occurred. Program will exit. > > > > -- You received this message because you are subscribed to the Google Groups "GWT Contributors" group. To unsubscribe from this group and stop receiving emails from it, send an email to google-web-toolkit-contributors+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/google-web-toolkit-contributors/970b7bd7-a88f-41a4-8295-373a4118f083n%40googlegroups.com.