GitHub

[Core] SensitiveDataRedactor leaks non-String secrets (numbers, char arrays) and misses modern cloud tokens (AWS, GitHub, Slack) #66

Because val instanceof String is false, it falls through to copy.put(safeKey, redactDeep(val)), which leaves numbers completely unredacted in diagnostic outputs and MCP tool responses! Character and ...
GitHub

39. Exception Handling in Java.md

40. String in Java.md 41. StringBuilder and StringBuffer in Java.md 42. Multithreading in Java.md 43. Introduction to Collection API.md 44. Generics in Java.md ...
blog.csdn

String、StringBuilder、StringBuffer 底层原理与面试考点全解析

本文深入解析String、StringBuilder、StringBuffer的不可变性、线程安全性及JDK 9+底层由char []转向byte []+coder的存储变革；详解字符串常量池机制、new String ()对象创建逻辑、运行期拼接字节码本质；剖析StringBuilder扩容规则、toString缓存差异、线程不安全的具体表现；并结合日志、批量组装等场景给出开发选 ...
51CTO

一行 "+" 拼接，JVM 到底偷偷 new 了几个对象？

从 JDK 1.5 引入 StringBuilder 起，99% 的新代码都应该用 StringBuilder。StringBuffer 主要存在于老代码（比如 JDK 早期的 StringBuilder 还没出生时的代码）中。 // JDK 9+ public final class String implements java.io ...