---
syntax: markdown
tags: [tldr, common]
source: https://github.com/tldr-pages/tldr.git
---
# jhsdb

> Attach to a Java process or launch a postmortem debugger to analyze the core dump from a crashed Java Virtual Machine.
> More information: <https://manned.org/jhsdb>.

- Print stack and locks information of a Java process:

`jhsdb jstack --pid {{pid}}`

- Open a core dump in interactive debug mode:

`jhsdb clhsdb --core {{path/to/core_dump}} --exe {{path/to/jdk_or_bin_or_java}}`

- Start a remote debug server:

`jhsdb debugd --pid {{pid}} --serverid {{optional_unique_id}}`

- Connect to a process in interactive debug mode:

`jhsdb clhsdb --pid {{pid}}`
