Sorry i submited a wrong process definition.xml
this is the right one...
<?xml version="1.0" encoding="UTF-8"?>
<process-definition
xmlns="urn:jbpm.org:jpdl-3.2" name="Produce music products">
<swimlane name="Talent scout">
<assignment expression="group(Talent Scout)"></assignment>
</swimlane>
<swimlane name="Legal adviser">
<assignment expression="group(Legal adviser)"></assignment>
</swimlane>
<swimlane name="Band member">
<assignment expression="group(Band member)"></assignment>
</swimlane>
<swimlane name="Record producer">
<assignment expression="group(Record producer)"></assignment>
</swimlane>
<swimlane name="Artist development">
<assignment expression="group(Artist development)"></assignment>
</swimlane>
<swimlane name="Songwriter">
<assignment expression="group(Songwriter)"></assignment>
</swimlane>
<swimlane name="Musician">
<assignment expression="group(Musician)"></assignment>
</swimlane>
<swimlane name="Video production">
<assignment expression="group(Video production)"></assignment>
</swimlane>
<swimlane name="Artist">
<assignment expression="group(Artist)"></assignment>
</swimlane>
<start-state name="Hold auditions">
<task name="Hold auditions" swimlane="Talent scout">
<controller>
<variable name="audDate" access="read,write,required" mapped-name="Audition date"></variable>
<variable name="audLocation" access="read,write,required" mapped-name="Audition location"></variable>
</controller>
</task>
<transition name="" to="Select band members"></transition>
</start-state>
<task-node name="Select band members">
<task name="Select band members" swimlane="Talent scout">
<controller>
<variable name="bm1" access="read,write,required" mapped-name="Band member 1"></variable>
<variable name="bm2" access="read,write,required" mapped-name="Band member 2"></variable>
<variable name="bm3" access="read,write,required" mapped-name="Band member 3"></variable>
<variable name="bm4" mapped-name="Band member 4"></variable>
<variable name="bm5" mapped-name="Band member 5"></variable>
<variable name="bm6" mapped-name="Band member 6"></variable>
</controller>
</task>
<transition name="" to="Contract band members"></transition>
</task-node>
<task-node name="Contract band members">
<task name="Contract band members" swimlane="Legal adviser">
<controller>
<variable name="bm1ContractSent" access="read,write,required" mapped-name="Band member 1 contract sent?"></variable>
<variable name="bm2ContractSent" access="read,write,required" mapped-name="Band member 2 contract sent?"></variable>
<variable name="bm3ContractSent" access="read,write,required" mapped-name="Band member 3 contract sent?"></variable>
<variable name="bm4ContractSent" mapped-name="Band member 4 contract sent?"></variable>
<variable name="bm5ContractSent" mapped-name="Band member 5 contract sent?"></variable>
<variable name="bm6ContractSent" mapped-name="Band member 6 contract sent?"></variable>
</controller>
</task>
<transition name="" to="Contract response"></transition>
</task-node>
<task-node name="Contract response">
<task name="Contract response" swimlane="Legal adviser">
<controller>
<variable name="bm1Agreed" mapped-name="Band member 1 agreed?"></variable>
<variable name="bm2Agreed" mapped-name="Band member 2 agreed?"></variable>
<variable name="bm3Agreed" mapped-name="Band member 3 agreed?"></variable>
<variable name="bm4Agreed" mapped-name="Band member 4 agreed?"></variable>
<variable name="bm5Agreed" mapped-name="Band member 5 agreed?"></variable>
<variable name="bm6Agreed" mapped-name="Band member 6 agreed?"></variable>
</controller>
</task>
<transition name="" to="All contracts agreed?"></transition>
</task-node>
<task-node name="All contracts agreed?">
<task name="All contracts agreed" swimlane="Legal adviser">
<controller>
<variable name="bm1Agreed" access="read" mapped-name="Band member 1 agreed?"></variable>
<variable name="bm2Agreed" access="read" mapped-name="Band member 2 agreed?"></variable>
<variable name="bm3Agreed" access="read" mapped-name="Band member 3 agreed?"></variable>
<variable name="bm4Agreed" access="read" mapped-name="Band member 4 agreed?"></variable>
<variable name="bm5Agreed" access="read" mapped-name="Band member 5 agreed?"></variable>
<variable name="bm6Agreed" access="read" mapped-name="Band member 6 agreed?"></variable>
</controller>
</task>
<transition name="No" to="Contract new member"></transition>
<transition name="Yes" to="Name band"></transition>
</task-node>
<task-node name="Contract new member">
<task name="Contract new member" swimlane="Legal adviser">
<controller>
<variable name="bm1" access="read,write,required" mapped-name="Band member 1"></variable>
<variable name="bm2" access="read,write,required" mapped-name="Band member 2"></variable>
<variable name="bm3" access="read,write,required" mapped-name="Band member 3"></variable>
<variable name="bm4" mapped-name="Band member 4"></variable>
<variable name="bm5" mapped-name="Band member 5"></variable>
<variable name="bm6" mapped-name="Band member 6"></variable>
<variable name="bm1Agreed" mapped-name="Band member 1 agreed?"></variable>
<variable name="bm2Agreed" mapped-name="Band member 2 agreed?"></variable>
<variable name="bm3Agreed" mapped-name="Band member 3 agreed?"></variable>
<variable name="bm4Agreed" mapped-name="Band member 4 agreed?"></variable>
<variable name="bm5Agreed" mapped-name="Band member 5 agreed?"></variable>
<variable name="bm6Agreed" mapped-name="Band member 6 agreed?"></variable>
</controller>
</task>
<transition name="" to="All contracts agreed?"></transition>
</task-node>
<task-node name="Name band">
<task name="Name band" swimlane="Record producer">
<controller>
<variable name="bandName" access="read,write,required" mapped-name="Band name"></variable>
</controller>
</task>
<transition name="" to="Organize vocal tuition"></transition>
</task-node>
<task-node name="Organize vocal tuition">
<task name="Organize vocal tuition" swimlane="Artist development">
<controller>
<variable name="vocalTuitionDate" access="read,write,required" mapped-name="Vocal tuition date"></variable>
<variable name="vocalTuitionTime" access="read,write,required" mapped-name="Vocal tuition time"></variable>
<variable name="vocalTuitionLocation" access="read,write,required" mapped-name="Vocal tuition location"></variable>
</controller>
</task>
<transition name="" to="fork1"></transition>
</task-node>
<fork name="fork1">
<transition name="" to="Write songs"></transition>
<transition name="tr2" to="Organize dance lessons"></transition>
</fork>
<task-node name="Write songs">
<task name="Write songs" swimlane="Songwriter">
<controller>
<variable name="songName1" access="read,write,required" mapped-name="Song name 1"></variable>
<variable name="songName2" access="read,write,required" mapped-name="Song name 2"></variable>
<variable name="songName3" access="read,write,required" mapped-name="Song name 3"></variable>
<variable name="songName4" access="read,write,required" mapped-name="Song name 4"></variable>
<variable name="songName5" access="read,write,required" mapped-name="Song name 5"></variable>
<variable name="songName6" access="read,write,required" mapped-name="Song name 6"></variable>
<variable name="songName7" access="read,write,required" mapped-name="Song name 7"></variable>
<variable name="songName8" access="read,write,required" mapped-name="Song name 8"></variable>
<variable name="songName9" access="read,write,required" mapped-name="Song name 9"></variable>
<variable name="songName10" access="read,write,required" mapped-name="Song name 10"></variable>
</controller>
</task>
<transition name="" to="Evaluate songs"></transition>
</task-node>
<task-node name="Organize dance lessons">
<task name="Organize dance lessons" swimlane="Artist development">
<controller>
<variable name="danceLessonDate" access="read,write,required" mapped-name="Dance lesson date"></variable>
<variable name="danceLessonTime" access="read,write,required" mapped-name="Dance lesson time"></variable>
<variable name="danceLessonLocation" access="read,write,required" mapped-name="Dance lesson location"></variable>
</controller>
</task>
<transition name="" to="Stylise band"></transition>
</task-node>
<task-node name="Evaluate songs">
<task name="Evaluate songs" swimlane="Record producer"></task>
<transition name="Good" to="join1"></transition>
<transition name="Bad" to="Write songs"></transition>
</task-node>
<task-node name="Contract supporting musicians">
<task name="Contract supporting musicians" swimlane="Legal adviser"></task>
<transition name="Done" to="Book recording studio"></transition>
</task-node>
<task-node name="Stylise band">
<task name="Stylise band" swimlane="Artist development">
<controller>
<variable name="bandStyle" access="read,write,required" mapped-name="Band style"></variable>
<variable name="bandName" access="read" mapped-name="Band name"></variable>
</controller>
</task>
<transition name="" to="Find supporting musicians"></transition>
</task-node>
<task-node name="Find supporting musicians">
<task name="Find supporting musicians" swimlane="Record producer">
<controller>
<variable name="supportingMusician1" access="read,write,required" mapped-name="Supporting musician 1"></variable>
<variable name="supportingMusician2" access="read,write,required" mapped-name="Supporting musician 2"></variable>
<variable name="supportingMusician3" access="read,write,required" mapped-name="Supporting musician 3"></variable>
<variable name="supportingMusician4" access="read,write,required" mapped-name="Supporting musician 4"></variable>
<variable name="supportingMusician5" access="read,write,required" mapped-name="Supporting musician 5"></variable>
</controller>
</task>
<transition name="" to="join1"></transition>
</task-node>
<join name="join1">
<transition name="" to="Contract supporting musicians"></transition>
</join>
<task-node name="Book recording studio">
<task name="Book recording studio" swimlane="Record producer">
<controller>
<variable name="recordingStudioName" access="read,write,required" mapped-name="Recording studio name"></variable>
<variable name="recordingStudioDate" access="read,write,required" mapped-name="Recording studio date"></variable>
<variable name="recordingStudioTime" access="read,write,required" mapped-name="Recording studio time"></variable>
<variable name="recordingStudioDuration" access="read,write,required" mapped-name="Recording studio duration"></variable>
</controller>
</task>
<transition name="Done" to="Record backing tracks"></transition>
</task-node>
<task-node name="Record backing tracks">
<task name="Record backing tracks" swimlane="Musician"></task>
<transition name="Done" to="Record vocals"></transition>
</task-node>
<task-node name="Record vocals">
<task name="Record vocals" swimlane="Band member"></task>
<transition name="Done" to="Record backing vocals"></transition>
</task-node>
<task-node name="Record backing vocals">
<task name="Record backing vocals" swimlane="Musician"></task>
<transition name="Done" to="Mix tracks"></transition>
</task-node>
<task-node name="Mix tracks">
<task name="Mix tracks" swimlane="Record producer"></task>
<transition name="Done" to="Shoot video"></transition>
</task-node>
<task-node name="Shoot video">
<task name="Shoot video" swimlane="Video production"></task>
<transition name="Done" to="fork2"></transition>
</task-node>
<task-node name="Design cover artwork">
<task name="Design cover artwork" swimlane="Artist"></task>
<transition name="Done" to="Draft credits"></transition>
</task-node>
<fork name="fork2">
<transition name="" to="Design cover artwork"></transition>
<transition name="tr2" to="Edit video"></transition>
</fork>
<task-node name="Edit video">
<task name="Edit video" swimlane="Video production"></task>
<transition name="Done" to="join2"></transition>
</task-node>
<task-node name="Draft credits">
<task name="Draft credits" swimlane="Record producer"></task>
<transition name="Done" to="Review credits and cover artwork"></transition>
</task-node>
<task-node name="Review credits and cover artwork">
<task name="Review credits and artwork" swimlane="Record producer"></task>
<transition name="Incorrect" to="Draft credits"></transition>
<transition name="Correct" to="join2"></transition>
</task-node>
<join name="join2">
<transition name="" to="Compile album and DVD"></transition>
</join>
<task-node name="Compile album and DVD">
<task name="Compile album and DVD" swimlane="Record producer"></task>
<transition name="Done" to="Album complete"></transition>
</task-node>
<end-state name="Album complete"></end-state>
</process-definition>