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==> Starting package()... Archive: /home/archie/AUR/impro-visor/src/improvisor1020-src.zip inflating: imp/Directories.java patching file Directories.java /home/archie/AUR/impro-visor/PKGBUILD: line 35: javac: command not found ==> ERROR: A failure occurred in package(). Aborting...

$ archlinux-java status Available Java environments: java-17-openjdk java-22-openjdk (default) java-8-openjdk/jre

Hi here, Impro-visor do not build :

Archive: /home/julien/.cache/yay/impro-visor/src/improvisor1020-src.zip inflating: imp/Directories.java
patching file Directories.java /home/julien/.cache/yay/impro-visor/PKGBUILD: ligne 35: javac : commande introuvable ==> ERREUR : Une erreur s’est produite dans package(). Abandon… erreur lors de la construction : impro-visor

Note: Impro-visor files are now located in ".impro-visor" directory instead of "impro-visor-version-X.X-files". If you have some troubles starting the app, delete or rename existing ".impro-visor" directory.

$ impro-visor Exception in thread "main" java.lang.UnsupportedClassVersionError: imp/ImproVisor : Unsupported major.minor version 52.0 at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClass(ClassLoader.java:800) at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142) at java.net.URLClassLoader.defineClass(URLClassLoader.java:449) at java.net.URLClassLoader.access$100(URLClassLoader.java:71) at java.net.URLClassLoader$1.run(URLClassLoader.java:361) at java.net.URLClassLoader$1.run(URLClassLoader.java:355) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:354) at java.lang.ClassLoader.loadClass(ClassLoader.java:425) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308) at java.lang.ClassLoader.loadClass(ClassLoader.java:358) at sun.launcher.LauncherHelper.checkAndLoadMain(LauncherHelper.java:482) I don't really know java, so ... What causes this?