public Map<String, Class<?>> getExtensionClasses1() {
        Map<String, ClassEntity> classes = this.getExtensionClassesEntity();
        return classes.values().stream().collect(Collectors.toMap(e -> e.getName(), x -> x.getClazz(), (a, b) -> a));
    }
Gets extension classes.

@return the extension classes
shenyu-spi/src/main/java/org/apache/shenyu/spi/ExtensionLoader.java