JDK 自带工具 笔记

java 反汇编工具

• 将文件打包进 jar 包（会覆盖）

注意路径需要与 jar 包保持一致，支持文件夹

jar -uvf test.jar com/test/test.class 

• 排查死锁

Found one Java-level deadlock:
=============================
"Thread-1":
  waiting to lock monitor 0x00000226fe877fb8 (object 0x000000076b282790, a java.lang.Boolean),
  which is held by "Thread-0"
"Thread-0":
  waiting to lock monitor 0x00000226fe87a798 (object 0x000000076b2827a0, a java.lang.Boolean),
  which is held by "Thread-1"