diff --git a/autoload/SpaceVim/layers/lang/java.vim b/autoload/SpaceVim/layers/lang/java.vim
index 632834a8f..95e4338dd 100644
--- a/autoload/SpaceVim/layers/lang/java.vim
+++ b/autoload/SpaceVim/layers/lang/java.vim
@@ -138,6 +138,9 @@ function! s:language_specified_mappings() abort
 
   " debug
   let g:_spacevim_mappings_space.l.d = {'name' : '+Debug'}
+  call SpaceVim#mapping#space#langSPC('nmap', ['l','d', 's'], ':VBGstartJDB', 'start jdb', 0)
+  call SpaceVim#mapping#space#langSPC('nmap', ['l','d', 't'], 'VBGtoggleBreakpointThisLine', 'toggle breakpoint at this line', 1)
+
   " maven
   let g:_spacevim_mappings_space.l.m = {'name' : '+Maven'}
   call SpaceVim#mapping#space#langSPC('nnoremap', ['l','m', 'i'], 'call call('