private static String stripPrefix(String resourcePath) {
        return resourcePath.substring(resourcePath.indexOf(":") + 1);
    }
Returns the InputStream for the resource represented by the specified path, supporting scheme
prefixes that direct how to acquire the input stream
({@link #CLASSPATH_PREFIX CLASSPATH_PREFIX},
{@link #URL_PREFIX URL_PREFIX}, or {@link #FILE_PREFIX FILE_PREFIX}).  If the path is not prefixed by one
of these schemes, the path is assumed to be a file-based path that can be loaded with a
{@link FileInputStream FileInputStream}.

@param resourcePath the String path representing the resource to obtain.
@return the InputStream for the specified resource.
@throws IOException if there is a problem acquiring the resource at the specified path.
lang/src/main/java/org/apache/shiro/lang/io/ResourceUtils.java