InterruptedException和类的java不可访问捕获块。newInstance（）

Question

在当前项目中，我试图加载一组插件；问题是插件可以做任何事情，包括抛出异常，或者永远挂起。我正在努力实现以下目标：

try {

    // load class by package name
    Class<?> pluginClass = Class.forName(plginClassName);

    // create a new instance of the object
    // this call could throw an exception or never return
    GenericPlugin plugin = (GenericPlugin) pluginClass.newInstance();

    state = PluginState.INITIALIZED;
    ...

} catch ( InterruptedException ie ) {  // <-- Compile Error Here
// Unreachable catch block for InterruptedException. This exception is never thrown from the try statement body

    state = PluginState.TIMEOUT;
} catch ( Exception ex ) {

    state = PluginState.FAILED;
}

我希望在装入器线程的调用类中，我可以执行以下操作：

LoaderThread t = new LoaderThread( pluginClassName );

// start loading the plugin
t.start();

// wait 5 seconds for startup
t.join( 5000 );

// interrupt if not complete
t.interrupt();

// get my plugin state
pluginState = t.getPluginState();

如果我做错了，请告诉我，但是

How can I timeout a call to class.newInstance()?