private static File toAbsolutePathFromResources(String resourcePath) {
        URL resourceURL = ApiManagerTestPluginRegistry.class.getResource(resourcePath);
        return FileUtils.toFile(resourceURL);
    }
@see io.apiman.manager.api.core.plugin.AbstractPluginRegistry#downloadPlugin(java.io.File, io.apiman.common.plugin.PluginCoordinates)
manager/test/api/src/main/java/io/apiman/manager/test/server/ApiManagerTestPluginRegistry.java