Its a JAVA debugger frontend plugin for VIM. It allows to debug a JAVA program via the JDB debugger. It allows remote debugging via attach parameter. It marks by vim-jdb setted breakpoints and shows the current file and line the debugger stays in.
It requires VIM >= 8.0 and VIM compiled with channel
, signs
and job
support.
- start JAVA process with the following debug agent option, e.g.
-agentlib:jdwp=transport=dt_socket,server=y,suspend=n,address=5005'
- attach to the JAVA process from your VIM with VIM-JDB like
:JDBAttach
or by explicitly specifying host and port:JDBAttach localhost:5005
- now the JDB shell buffer should open and signal that it connected to the JAVA process
- open a JAVA file and go to the line in it where you want to set a breakpoint
- set a breakpoint on the current line in the current file by using the command
:JDBBreakpointOnLine
- breakpoints are marked depending on your terminals and VIMs capabilities with a
⛔
orx
- if your programm stops at the breakpoint this is marked with a
->
- use the command
:JDBStepOver
to execute to the next line - with
:JDBCommand
you can send any JDB command to the JDB JAVA process, e.g. you want to see all locals do:JDBCommands locals
- with
:JDBContinue
you can resume the execution until the next breakpoint is hits
Command | Description |
---|---|
JDBAttach | attach to a running JVM with a debug listener on localhost:5005, can be overwritten by given host:port as an argument |
JDBDetach | detach the debugger UI from the application that is currently debugged |
JDBBreakpointOnLine | set a breakpoint on the current line |
JDBClearBreakpointOnLine | clear the breakpoint on the current line |
JDBContinue | continues the execution until the next breakpoint |
JDBStepOver | steps to the next line |
JDBStepIn | steps a level down the stack |
JDBStepUp | steps a level up in the stack |
JDBStepI | steps to the next instruction |
JDBCommand | send any JDB command to the application under debug |
To specify the JDB command to use you can overwrite the following variable g:vimjdb_jdb_command
. The default is jdb
.