Mac OS HSDB HotSpot Debugger can not attach to the

问题:

I want to use HSDB to debug my java code. I follow the steps blow:

1. Debug my code in IntelliJ and stop at a breakpoint
2. Start HSDB:

   java -cp ,:/Library/Java/JavaVirtualMachines/jdk1.8.0_161.jdk/Contents/Home/lib/sa-jdi.jar sun.jvm.hotspot.HSDB

3. use jps to get the pid
4. attach to the pid, but error occurs.

My java version:

java version "1.8.0_161"
Java(TM) SE Runtime Environment (build 1.8.0_161-b12)
Java HotSpot(TM) 64-Bit Server VM (build 25.161-b12, mixed mode)

My os version:

  System Version: macOS 10.13.3 (17D102)
  Kernel Version: Darwin 17.4.0
  Boot Volume: 未命名
  Boot Mode: Normal
  Secure Virtual Memory: Enabled
  System Integrity Protection: Enabled
  Time since boot: 6 days 1:08

Can someone gives me some advices? Thanks in advance.

回答1:

I found that I need to use sudo

sudo java -cp ,:/Library/Java/JavaVirtualMachines/jdk1.8.0_161.jdk/Contents/Home/lib/sa-jdi.jar sun.jvm.hotspot.HSDB