public static boolean isClassAtPackageJavaUtil(@NonNull String className) {
        return isClassAtPackage(className, "java.util");
    }
Add {@code try-finally} logic to method.

@return the body code of method rewritten
ttl2-compatible/src/main/java/com/alibaba/ttl/threadpool/agent/transformlet/helper/TtlTransformletHelper.java