Description:

The shell script from the package is hard coded to use java 8 however the package is build with java 11 which results in java.lang.UnsupportedClassVersionError

To fix this error the shell script should be updated from:

#!/usr/bin/env sh

PATH="/usr/lib/jvm/java-8-openjdk/bin:${PATH}"
java -jar /usr/share/java/openapi-generator/openapi-generator-cli.jar "$@"

to:

#!/usr/bin/env sh

PATH="/usr/lib/jvm/java-11-openjdk/bin:${PATH}"
java -jar /usr/share/java/openapi-generator/openapi-generator-cli.jar "$@"

however it would be better to not hardcode the java version and use instead the system java version which is set with the archlinux-java script

Additional info:
* package version(s)
* config and/or log files etc.
* link to upstream bug report, if any

Steps to reproduce:

pacman -S openapi
openapi-generator --help

which results in:
Error: A JNI error has occurred, please check your installation and try again
Exception in thread "main" java.lang.UnsupportedClassVersionError: org/openapitools/codegen/OpenAPIGenerator has been compiled by a more recent version of the Java Runtime (class file version 55.0), this version of the Java Runtime only recognizes class file versions up to 52.0
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:756)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:473)
at java.net.URLClassLoader.access$100(URLClassLoader.java:74)
at java.net.URLClassLoader$1.run(URLClassLoader.java:369)
at java.net.URLClassLoader$1.run(URLClassLoader.java:363)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:362)
at java.lang.ClassLoader.loadClass(ClassLoader.java:418)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:352)
at java.lang.ClassLoader.loadClass(ClassLoader.java:351)
at sun.launcher.LauncherHelper.checkAndLoadMain(LauncherHelper.java:621)