core/src/main/java/com/taobao/arthas/core/advisor/Enhancer.java [441:515]:
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            if (GlobalOptions.isBatchReTransform) {
                final int size = matchingClasses.size();
                final Class<?>[] classArray = new Class<?>[size];
                arraycopy(matchingClasses.toArray(), 0, classArray, 0, size);
                if (classArray.length > 0) {
                    inst.retransformClasses(classArray);
                    logger.info("Success to batch transform classes: " + Arrays.toString(classArray));
                }
            } else {
                // for each 增强
                for (Class<?> clazz : matchingClasses) {
                    try {
                        inst.retransformClasses(clazz);
                        logger.info("Success to transform class: " + clazz);
                    } catch (Throwable t) {
                        logger.warn("retransform {} failed.", clazz, t);
                        if (t instanceof UnmodifiableClassException) {
                            throw (UnmodifiableClassException) t;
                        } else if (t instanceof RuntimeException) {
                            throw (RuntimeException) t;
                        } else {
                            throw new RuntimeException(t);
                        }
                    }
                }
            }
        } catch (Throwable e) {
            logger.error("Enhancer error, matchingClasses: {}", matchingClasses, e);
            affect.setThrowable(e);
        }

        return affect;
    }

    /**
     * 重置指定的Class
     *
     * @param inst             inst
     * @param classNameMatcher 类名匹配
     * @return 增强影响范围
     * @throws UnmodifiableClassException
     */
    public static synchronized EnhancerAffect reset(final Instrumentation inst, final Matcher classNameMatcher)
            throws UnmodifiableClassException {

        final EnhancerAffect affect = new EnhancerAffect();
        final Set<Class<?>> enhanceClassSet = new HashSet<Class<?>>();

        for (Class<?> classInCache : classBytesCache.keySet()) {
            if (classNameMatcher.matching(classInCache.getName())) {
                enhanceClassSet.add(classInCache);
            }
        }

        try {
            enhance(inst, enhanceClassSet);
            logger.info("Success to reset classes: " + enhanceClassSet);
        } finally {
            for (Class<?> resetClass : enhanceClassSet) {
                classBytesCache.remove(resetClass);
                affect.cCnt(1);
            }
        }

        return affect;
    }

    // 批量增强
    private static void enhance(Instrumentation inst, Set<Class<?>> classes)
            throws UnmodifiableClassException {
        int size = classes.size();
        Class<?>[] classArray = new Class<?>[size];
        arraycopy(classes.toArray(), 0, classArray, 0, size);
        if (classArray.length > 0) {
            inst.retransformClasses(classArray);
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labs/arthas-grpc-web-proxy/src/main/java/com/taobao/arthas/grpcweb/grpc/service/advisor/Enhancer.java [429:503]:
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            if (GlobalOptions.isBatchReTransform) {
                final int size = matchingClasses.size();
                final Class<?>[] classArray = new Class<?>[size];
                arraycopy(matchingClasses.toArray(), 0, classArray, 0, size);
                if (classArray.length > 0) {
                    inst.retransformClasses(classArray);
                    logger.info("Success to batch transform classes: " + Arrays.toString(classArray));
                }
            } else {
                // for each 增强
                for (Class<?> clazz : matchingClasses) {
                    try {
                        inst.retransformClasses(clazz);
                        logger.info("Success to transform class: " + clazz);
                    } catch (Throwable t) {
                        logger.warn("retransform {} failed.", clazz, t);
                        if (t instanceof UnmodifiableClassException) {
                            throw (UnmodifiableClassException) t;
                        } else if (t instanceof RuntimeException) {
                            throw (RuntimeException) t;
                        } else {
                            throw new RuntimeException(t);
                        }
                    }
                }
            }
        } catch (Throwable e) {
            logger.error("Enhancer error, matchingClasses: {}", matchingClasses, e);
            affect.setThrowable(e);
        }

        return affect;
    }

    /**
     * 重置指定的Class
     *
     * @param inst             inst
     * @param classNameMatcher 类名匹配
     * @return 增强影响范围
     * @throws UnmodifiableClassException
     */
    public static synchronized EnhancerAffect reset(final Instrumentation inst, final Matcher classNameMatcher)
            throws UnmodifiableClassException {

        final EnhancerAffect affect = new EnhancerAffect();
        final Set<Class<?>> enhanceClassSet = new HashSet<Class<?>>();

        for (Class<?> classInCache : classBytesCache.keySet()) {
            if (classNameMatcher.matching(classInCache.getName())) {
                enhanceClassSet.add(classInCache);
            }
        }

        try {
            enhance(inst, enhanceClassSet);
            logger.info("Success to reset classes: " + enhanceClassSet);
        } finally {
            for (Class<?> resetClass : enhanceClassSet) {
                classBytesCache.remove(resetClass);
                affect.cCnt(1);
            }
        }

        return affect;
    }

    // 批量增强
    private static void enhance(Instrumentation inst, Set<Class<?>> classes)
            throws UnmodifiableClassException {
        int size = classes.size();
        Class<?>[] classArray = new Class<?>[size];
        arraycopy(classes.toArray(), 0, classArray, 0, size);
        if (classArray.length > 0) {
            inst.retransformClasses(classArray);
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