Jbpm ant start. Human. Task

Start. Human. task:
[Javac] H: \ study \ jbpm \ build. xml: 864: Warning: 'includeantruntime' was not set, defaulting to build. sysclasspath = last; set to false for Repeatable builds
[Java] 0 20/01 10:51:07, 953 [main] Error task. Identity. defaultusergroupcallbackimpl. <init>-error when loading group information for callback from location: file: NULL/roles. Properties
[Java] java. Io. filenotfoundexception: NULL \ roles. properties (the system cannot find the specified
.)
[Java] At java. Io. fileinputstream. Open (native method)
[Java] At java. Io. fileinputstream. <init> (fileinputstream. Java: 138)
[Java] At java. Io. fileinputstream. <init> (fileinputstream. Java: 97)
[Java] At sun.net. www. Protocol. file. fileurlconnection. Connect (fileurlco
Nnection. Java: 90)
[Java] At sun.net. www. Protocol. file. fileurlconnection. getinputstream (Fi
Leurlconnection. Java: 188)
[Java] At java.net. url. openstream (URL. Java: 1035)
[Java] At org. jbpm. task. Identity. defaultusergroupcallbackimpl. <init> (de
Faultusergroupcallbackimpl. Java: 55)
[Java] At org. jbpm. task. Identity. defaultusergroupcallbackimpl. <init> (de
Faultusergroupcallbackimpl. Java: 40)
[Java] At sun. Reflect. nativeconstruct%cessorimpl. newinstance0 (native
Method)
[Java] At sun. Reflect. nativeconstruct%cessorimpl. newinstance (nativec
Onstructjavascessorimpl. Java: 57)
[Java] At sun. Reflect. delegatingconstructoraccessorimpl. newinstance (DEL
Egatingconstructoraccessorimpl. Java: 45)
[Java] At java. Lang. Reflect. constructor. newinstance (constructor. Java: 52
5)
[Java] At java. Lang. Class. newinstance0 (class. Java: 372)
[Java] At java. Lang. Class. newinstance (class. Java: 325)
[Java] At org. jbpm. task. Identity. usergroupcallbackmanager. setcallbackfr
Omproperties (usergroupcallbackmanager. Java: 69)
[Java] At org. jbpm. demotaskservice. Main (unknown source)
[Java] Task Service registered usergroup callback...
[Java] Task Service started correctly!

[Java] Task Service running...

I finally got the Human Task Service working, I made the foloowing changes in build. xml

 

<Java classname = "org. jbpm. demotaskservice" fork = "true">

<Sysproperty
Key = "jbpm. User. Group. Mapping" value = "file: // C:/work/jbpm-installer/jboss-as-7.1.1.Final/standalone/configuration/roles. properties"/>

<Classpath>

<Pathelement Path = "$ {install. Home}/task-service/target"/>

<Path refID = "classpath. Human. Task"/>

</Classpath>

</Java>