jetbrick-commons/src/main/java/jetbrick/beans/ClassLoaderUtils.java
public static InputStream getResourceAsStream(String name, ClassLoader classLoader) throws IOException {
        URL url = getResource(name, classLoader);
        if (url != null) {
            return url.openStream();
        }
        return null;
    }
public static InputStream getResourceAsStream(String name, ClassLoader classLoader) throws IOException {
        URL url = getResource(name, classLoader);
        if (url != null) {
            return url.openStream();
        }
        return null;
    }
Returns an input stream for reading the specified resource.