tldr/pages/common/jhsdb.md

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# 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/bin/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}}`