diff --git a/autoload/vebugger/jdb.vim b/autoload/vebugger/jdb.vim
index 612336c..cb4a672 100644
--- a/autoload/vebugger/jdb.vim
+++ b/autoload/vebugger/jdb.vim
@@ -1,6 +1,12 @@
-function! vebugger#jdb#start(entryClass,args)
+function! vebugger#jdb#start(args)
+	if !has_key(a:args, 'con')
+		let a:args.con = 9009
+	endif
+
 	let l:debugger=vebugger#std#startDebugger(shellescape(vebugger#util#getToolFullPath('jdb',get(a:args,'version'),'jdb'))
-				\.(has_key(a:args,'classpath') ? ' -classpath '.fnameescape(a:args.classpath) : ''))
+				\.(has_key(a:args,'classpath') ? ' -classpath '.fnameescape(a:args.classpath) : '')
+				\.(!has_key(a:args,'entryClass') ? ' -attach '.fnameescape(a:args.con) : ''))
+
 	let l:debugger.state.jdb={}
 	if has_key(a:args,'srcpath')
 		let l:debugger.state.jdb.srcpath=a:args.srcpath
@@ -9,11 +15,13 @@ function! vebugger#jdb#start(entryClass,args)
 	endif
 	let l:debugger.state.jdb.filesToClassesMap={}
 
-	call l:debugger.writeLine('stop on '.a:entryClass.'.main')
-	call l:debugger.writeLine('run  '.a:entryClass.' '.vebugger#util#commandLineArgsForProgram(a:args))
-	call l:debugger.writeLine('monitor where')
-	if !has('win32')
-		call vebugger#std#openShellBuffer(l:debugger)
+	if has_key(a:args, 'entryClass')
+		if !has('win32')
+			call vebugger#std#openShellBuffer(l:debugger)
+		endif
+		call l:debugger.writeLine('stop on '.a:args.entryClass.'.main')
+		call l:debugger.writeLine('run  '.a:args.entryClass.' '.vebugger#util#commandLineArgsForProgram(a:args))
+		call l:debugger.writeLine('monitor where')
 	endif
 
 	call l:debugger.addReadHandler(function('vebugger#jdb#_readProgramOutput'))
diff --git a/doc/vebugger.txt b/doc/vebugger.txt
index db8088d..2fdd77b 100644
--- a/doc/vebugger.txt
+++ b/doc/vebugger.txt
@@ -137,22 +137,26 @@ LAUNCHING JDB                                                 *vebugger-jdb*
 
 JDB is launched with *vebugger#jdb#start*
 >
-    call vebugger#jdb#start('Main',{
+    call vebugger#jdb#start({
+        \'entryClass':'Main',
         \'classpath':'classes',
         \'srcpath':'src',
         \'args':['hello','world']})
 <
-Unlike in the other debuggers, the first argument here is not the name of a
-file - it's the name of the class to run. The supported extra arguments are:
+Unlike in the other debuggers, there is no first argument. The supported extra arguments are:
 * "args": Command line arguments for the debugged program
 * "classpath": Where to look for class files
 * "srcpath": Where to look for source files
 * "version": The version of the debugger to run
+* "con": A connection string for attaching to an existing jvm. Ex. localhost:8000 or 8000
+  defaults to 9009, the standard debug port for jvms.
+* "entryClass": A class that contains main for starting the jdb up with.
+If entryClass is defined it takes precedence over con.
 If you don't supply "classpath" and "srcpath", Vebugger will assume you are
 using the current directory for source files and class files.
 
-JDB does not have a command for starting it, since you usually want to supply
-"classpath" and "srcpath".
+JDB can be started with VBGstartJDB. If the desired the user can call the command with the extra
+arguments that are defined above.
 
 
 LAUNCHING RDEBUG                                             *vebugger-rdebug*
diff --git a/plugin/vebugger.vim b/plugin/vebugger.vim
index 6ea2076..1ae62ca 100644
--- a/plugin/vebugger.vim
+++ b/plugin/vebugger.vim
@@ -28,6 +28,7 @@ command! -nargs=+ -complete=file VBGstartPDB call vebugger#pdb#start([<f-args>][
 command! -nargs=+ -complete=file VBGstartPDB2 call vebugger#pdb#start([<f-args>][0],{'args':[<f-args>][1:],'version':'2'})
 command! -nargs=+ -complete=file VBGstartPDB3 call vebugger#pdb#start([<f-args>][0],{'args':[<f-args>][1:],'version':'3'})
 command! -nargs=+ -complete=file VBGstartGDBForD call vebugger#gdb#start([<f-args>][0],{'args':[<f-args>][1:],'entry':'_Dmain'})
+command! -nargs=* -complete=command VBGstartJDB call vebugger#jdb#start(string(<q-args>) ? eval([<f-args>][0]) : {})
 
 if exists('g:vebugger_leader')
 	if !empty(g:vebugger_leader)