This project forked from gary-rowe/hid4java
🎮 HID API for Java (like hidapi, jna, currently for mac only)
Home Page: https://github.com/gary-rowe/hid4java
License: MIT License
java.lang.NullPointerException: Cannot invoke "java.util.List.add(Object)" because "this.controllers" is null
at vavi.games.input.hid4java.spi.Hid4JavaEnvironmentPlugin.attach(Hid4JavaEnvironmentPlugin.java:150)
at vavi.games.input.hid4java.spi.Hid4JavaEnvironmentPlugin$1.hidDeviceAttached(Hid4JavaEnvironmentPlugin.java:61)
at org.hid4java.HidServicesListenerSupport.fireHidDeviceAttached(HidServicesListenerSupport.java:77)
at org.hid4java.HidDeviceManager.scan(HidDeviceManager.java:180)
at org.hid4java.HidDeviceManager.start(HidDeviceManager.java:134)
at org.hid4java.HidServices.start(HidServices.java:140)
at vavi.games.input.hid4java.spi.Hid4JavaEnvironmentPlugin.isSupported(Hid4JavaEnvironmentPlugin.java:195)
at vavi.games.input.hid4java.spi.Hid4JavaEnvironmentPlugin.enumerate(Hid4JavaEnvironmentPlugin.java:90)
at vavi.games.input.hid4java.spi.Hid4JavaEnvironmentPlugin.getControllers(Hid4JavaEnvironmentPlugin.java:179)
at vavi.games.input.hid4java.spi.Hid4JavaEnvironmentPlugin.getController(Hid4JavaEnvironmentPlugin.java:217)
callback is created by IOHIDDeviceRegisterInputReportCallback
why?
i referred to purejavahidapi, but i couldn't find a difference.
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