java.lang.NoSuchMethodException: sampe-package-path.EndpointClassEndpoint.<init>()
    at java.lang.Class.getConstructor0(Class.java:3082)
    at java.lang.Class.newInstance(Class.java:412)
    at com.google.api.server.spi.EndpointsServlet.createService(EndpointsServlet.java:143)
    at com.google.api.server.spi.EndpointsServlet.createSystemService(EndpointsServlet.java:128)
    at com.google.api.server.spi.EndpointsServlet.init(EndpointsServlet.java:57)

@Inject
public EndpointClassEndpoint(EndpointClassContext context) {
    this.context = context;
}