Question

我完全按照the steps in this tutorial设置了JInput 2.0.7，但我一直收到以下错误：

Loading: net.java.games.input.OSXEnvironmentPlugin
java.lang.ClassCastException: java.lang.String cannot be cast to [Ljava.lang.Object;
    at net.java.games.input.OSXHIDDevice.addElements(OSXHIDDevice.java:163)
    at net.java.games.input.OSXHIDDevice.addElements(OSXHIDDevice.java:172)
    at net.java.games.input.OSXHIDDevice.getElements(OSXHIDDevice.java:178)
    at net.java.games.input.OSXEnvironmentPlugin.createControllersFromDevice(OSXEnvironmentPlugin.java:226)
    at net.java.games.input.OSXEnvironmentPlugin.enumerateControllers(OSXEnvironmentPlugin.java:262)
    at net.java.games.input.OSXEnvironmentPlugin.<init>(OSXEnvironmentPlugin.java:136)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
    at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
    at java.lang.Class.newInstance(Class.java:442)
    at net.java.games.input.DefaultControllerEnvironment.getControllers(DefaultControllerEnvironment.java:157)
    at net.java.games.input.test.ControllerReadTest.<init>(ControllerReadTest.java:253)
    at net.java.games.input.test.ControllerReadTest.main(ControllerReadTest.java:302)

这似乎是类本身的一个错误，但我没有在其他任何地方看到过这个错误，这篇文章也是去年发布的。这是JInput的问题，还是我做了什么？

Answer 1

at net.java.games.input.OSXHIDDevice.addElements(OSXHIDDevice.java:163)

这是发生错误。这似乎是一个内部JInput错误。您必须修改JInput的源代码才能解决此问题。

查看源代码。这是抛出异常的方法。

private final void addElements(List elements, Map properties) {
    Object[] elements_properties = (Object[])properties.get(kIOHIDElementKey);
    if (elements_properties == null)
        return;
    for (int i = 0; i < elements_properties.length; i++) {
        Map element_properties = (Map)elements_properties[i];
        OSXHIDElement element = createElementFromElementProperties(element_properties);
        if (element != null) {
            elements.add(element);
        }
        addElements(elements, element_properties);
    }
}

在这一行中，properties.get（kIOHIDElementKey）返回一个String。 String无法转换为Object []：

Object[] elements_properties = (Object[])properties.get(kIOHIDElementKey);

JInput 2.0.7对象转换错误

1 个答案: