DSL para multibranch

gistfile1.txt

Expected no exception to be thrown, but got 'javaposse.jobdsl.dsl.DslScriptException'
	at spock.lang.Specification.noExceptionThrown(Specification.java:118)
	at org.kie.jenkins.jobdsl.JobScriptsSpec.test script #file.name(JobScriptsSpec.groovy:47)
Caused by: javaposse.jobdsl.dsl.DslScriptException: (script, line 10) No signature of method: javaposse.jobdsl.dsl.helpers.workflow.BranchSourcesContext.source() is applicable for argument types: (script$_run_closure1$_closure2$_closure3) values: [script$_run_closure1$_closure2$_closure3@1f90edb5]
Possible solutions: collect(), use([Ljava.lang.Object;)
	at javaposse.jobdsl.dsl.AbstractDslScriptLoader.runScriptEngine(AbstractDslScriptLoader.groovy:114)
	at javaposse.jobdsl.dsl.AbstractDslScriptLoader.runScripts_closure1(AbstractDslScriptLoader.groovy:61)
	at groovy.lang.Closure.call(Closure.java:405)
	at groovy.lang.Closure.call(Closure.java:421)
	at javaposse.jobdsl.dsl.AbstractDslScriptLoader.runScripts(AbstractDslScriptLoader.groovy:46)
	at javaposse.jobdsl.dsl.AbstractDslScriptLoader.runScript(AbstractDslScriptLoader.groovy:87)
	at org.kie.jenkins.jobdsl.JobScriptsSpec.test script #file.name(JobScriptsSpec.groovy:43)
Caused by: groovy.lang.MissingMethodException: No signature of method: javaposse.jobdsl.dsl.helpers.workflow.BranchSourcesContext.source() is applicable for argument types: (script$_run_closure1$_closure2$_closure3) values: [script$_run_closure1$_closure2$_closure3@1f90edb5]
Possible solutions: collect(), use([Ljava.lang.Object;)
	at javaposse.jobdsl.dsl.AbstractExtensibleContext.methodMissing(AbstractExtensibleContext.groovy:19)
	at script.run_closure1$_closure2(script:10)
	at script.run_closure1$_closure2(script)
	at javaposse.jobdsl.dsl.ContextHelper.executeInContext(ContextHelper.groovy:16)
	at javaposse.jobdsl.dsl.jobs.MultibranchWorkflowJob.branchSources(MultibranchWorkflowJob.groovy:22)
	at script.run_closure1(script:9)
	at groovy.lang.Closure.call(Closure.java:405)
	at groovy.lang.Closure.call(Closure.java:421)
	at javaposse.jobdsl.dsl.JobParent.processItem(JobParent.groovy:239)
	at javaposse.jobdsl.dsl.JobParent.multibranchPipelineJob(JobParent.groovy:96)
	at script.run(script:5)
	at javaposse.jobdsl.dsl.AbstractDslScriptLoader.runScript(AbstractDslScriptLoader.groovy:138)
	at javaposse.jobdsl.dsl.AbstractDslScriptLoader.runScriptEngine(AbstractDslScriptLoader.groovy:108)
	... 6 more