Trying to deploy on IBM i, which doesn't have JNA support. Since JNA doesn't work, oshi doesn't work. Since oshi doesn't work, the PerformanceSetting class doesn't work.

I don't see a workaround, but thankfully the use of oshi is not pervasive.

Launching a JVM...
WrapperManager: Initializing...
10:32:08 INFO  i.onedev.commons.bootstrap.Bootstrap - Launching application from '/home/LINUX/onedev/onedev-7.4.9'...
10:32:08 INFO  i.onedev.commons.bootstrap.Bootstrap - Cleaning temp directory...
10:32:17 INFO  io.onedev.commons.loader.AppLoader - Starting server...
10:32:49 ERROR i.onedev.commons.bootstrap.Bootstrap - Error booting application
java.lang.UnsupportedOperationException: Operating system not supported: Unknown
        at oshi.SystemInfo.createHardware(SystemInfo.java:163)
        at oshi.SystemInfo$$Lambda$452/0000000000000000.get(Unknown Source)
        at oshi.util.Memoizer$1.get(Memoizer.java:87)
        at oshi.SystemInfo.getHardware(SystemInfo.java:143)
        at io.onedev.server.model.support.administration.PerformanceSetting.<init>(PerformanceSetting.java:27)
        at io.onedev.server.maintenance.DefaultDataManager.init(DefaultDataManager.java:254)
        at io.onedev.server.persistence.TransactionInterceptor$1.call(TransactionInterceptor.java:23)
        at io.onedev.server.persistence.DefaultTransactionManager$1.call(DefaultTransactionManager.java:72)
        at io.onedev.server.persistence.DefaultSessionManager.call(DefaultSessionManager.java:79)
        at io.onedev.server.persistence.DefaultTransactionManager.call(DefaultTransactionManager.java:60)
        at io.onedev.server.persistence.TransactionInterceptor.invoke(TransactionInterceptor.java:18)
        at io.onedev.server.OneDev.start(OneDev.java:111)
        at io.onedev.commons.loader.DefaultPluginManager.start(DefaultPluginManager.java:44)
        at io.onedev.commons.loader.AppLoader.start(AppLoader.java:73)
        at io.onedev.commons.bootstrap.Bootstrap.main(Bootstrap.java:189)
        at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.base/java.lang.reflect.Method.invoke(Method.java:566)
        at org.tanukisoftware.wrapper.WrapperSimpleApp.run(WrapperSimpleApp.java:349)
        at java.base/java.lang.Thread.run(Thread.java:834)
<-- Wrapper Stopped

Minimally, the PerformanceSetting constructor could catch the UnsupportedOperationException and assume some braindead defaults. Optimally, this would be user-configurable (with some defaults).

I'm peeking through some surrounding classes, such as DefaultResourceManager, but it is not clear whether the resource management piece would otherwise fail without JNA