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A micro framework for creating web applications in Kotlin and Java 8 with minimal effort

There is a newer version: 2.9.4

package spark.embeddedserver.jetty.websocket;

import static java.util.Objects.requireNonNull;

public class WebSocketHandlerClassWrapper implements WebSocketHandlerWrapper {
    
    private final Class handlerClass;

    public WebSocketHandlerClassWrapper(Class handlerClass) {
        requireNonNull(handlerClass, "WebSocket handler class cannot be null");
        WebSocketHandlerWrapper.validateHandlerClass(handlerClass);
        this.handlerClass = handlerClass;
    }
    @Override
    public Object getHandler() {
        try {
            return handlerClass.newInstance();
        } catch (InstantiationException | IllegalAccessException ex) {
            throw new RuntimeException("Could not instantiate websocket handler", ex);
        }
    }

}