def fn (String... strs) {
    println "${strs.size()}"
}

def s = ["This should only be one string", "this is another"]
def n = fn(*s)

print(n)

java.lang.UnsupportedOperationException
	at com.cloudbees.groovy.cps.CpsTransformer.visitSpreadExpression(CpsTransformer.java:1130)
	at org.codehaus.groovy.ast.expr.SpreadExpression.visit(SpreadExpression.java:41)
	at com.cloudbees.groovy.cps.CpsTransformer.visit(CpsTransformer.java:335)
	at com.cloudbees.groovy.cps.CpsTransformer.visit(CpsTransformer.java:341)
	at com.cloudbees.groovy.cps.CpsTransformer$4.run(CpsTransformer.java:482)
	at com.cloudbees.groovy.cps.CpsTransformer.makeChildren(CpsTransformer.java:424)
	at com.cloudbees.groovy.cps.CpsTransformer.makeNode(CpsTransformer.java:387)
	at com.cloudbees.groovy.cps.CpsTransformer.visitMethodCallExpression(CpsTransformer.java:465)
	at org.codehaus.groovy.ast.expr.MethodCallExpression.visit(MethodCallExpression.java:66)
	at com.cloudbees.groovy.cps.CpsTransformer.visit(CpsTransformer.java:335)
	at com.cloudbees.groovy.cps.CpsTransformer$40.run(CpsTransformer.java:1083)
	at com.cloudbees.groovy.cps.CpsTransformer.makeChildren(CpsTransformer.java:424)
	at com.cloudbees.groovy.cps.CpsTransformer.makeNode(CpsTransformer.java:387)
	at com.cloudbees.groovy.cps.CpsTransformer.visitDeclarationExpression(CpsTransformer.java:1076)
	at org.codehaus.groovy.ast.expr.DeclarationExpression.visit(DeclarationExpression.java:89)
	at com.cloudbees.groovy.cps.CpsTransformer.visit(CpsTransformer.java:335)
	at com.cloudbees.groovy.cps.CpsTransformer.visitExpressionStatement(CpsTransformer.java:566)
	at org.codehaus.groovy.ast.stmt.ExpressionStatement.visit(ExpressionStatement.java:42)
	at com.cloudbees.groovy.cps.CpsTransformer.visit(CpsTransformer.java:335)
	at com.cloudbees.groovy.cps.CpsTransformer.visit(CpsTransformer.java:341)
	at com.cloudbees.groovy.cps.CpsTransformer$5.run(CpsTransformer.java:492)
	at com.cloudbees.groovy.cps.CpsTransformer.makeChildren(CpsTransformer.java:424)
	at com.cloudbees.groovy.cps.CpsTransformer.makeNode(CpsTransformer.java:387)
	at com.cloudbees.groovy.cps.CpsTransformer.visitBlockStatement(CpsTransformer.java:489)
	at org.codehaus.groovy.ast.stmt.BlockStatement.visit(BlockStatement.java:71)
	at com.cloudbees.groovy.cps.CpsTransformer.visit(CpsTransformer.java:335)
	at com.cloudbees.groovy.cps.CpsTransformer$2.run(CpsTransformer.java:366)
	at com.cloudbees.groovy.cps.CpsTransformer.makeChildren(CpsTransformer.java:424)
	at com.cloudbees.groovy.cps.CpsTransformer.makeNode(CpsTransformer.java:387)
	at com.cloudbees.groovy.cps.CpsTransformer.visitWithSafepoint(CpsTransformer.java:352)
	at com.cloudbees.groovy.cps.CpsTransformer.visitMethod(CpsTransformer.java:212)
	at com.cloudbees.groovy.cps.CpsTransformer.call(CpsTransformer.java:126)
	at org.codehaus.groovy.control.CompilationUnit.applyToPrimaryClassNodes(CompilationUnit.java:1065)
	at org.codehaus.groovy.control.CompilationUnit.doPhaseOperation(CompilationUnit.java:603)
	at org.codehaus.groovy.control.CompilationUnit.processPhaseOperations(CompilationUnit.java:581)
	at org.codehaus.groovy.control.CompilationUnit.compile(CompilationUnit.java:558)
	at groovy.lang.GroovyClassLoader.doParseClass(GroovyClassLoader.java:298)
	at groovy.lang.GroovyClassLoader.parseClass(GroovyClassLoader.java:268)
	at groovy.lang.GroovyShell.parseClass(GroovyShell.java:688)
	at groovy.lang.GroovyShell.parse(GroovyShell.java:700)
	at org.jenkinsci.plugins.workflow.cps.CpsGroovyShell.doParse(CpsGroovyShell.java:129)
	at org.jenkinsci.plugins.workflow.cps.CpsGroovyShell.reparse(CpsGroovyShell.java:123)
	at org.jenkinsci.plugins.workflow.cps.CpsFlowExecution.parseScript(CpsFlowExecution.java:516)
	at org.jenkinsci.plugins.workflow.cps.CpsFlowExecution.start(CpsFlowExecution.java:479)
	at org.jenkinsci.plugins.workflow.job.WorkflowRun.run(WorkflowRun.java:269)
	at hudson.model.ResourceController.execute(ResourceController.java:97)
	at hudson.model.Executor.run(Executor.java:405)

1 error

	at org.codehaus.groovy.control.ErrorCollector.failIfErrors(ErrorCollector.java:310)
	at org.codehaus.groovy.control.CompilationUnit.applyToPrimaryClassNodes(CompilationUnit.java:1085)
	at org.codehaus.groovy.control.CompilationUnit.doPhaseOperation(CompilationUnit.java:603)
	at org.codehaus.groovy.control.CompilationUnit.processPhaseOperations(CompilationUnit.java:581)
	at org.codehaus.groovy.control.CompilationUnit.compile(CompilationUnit.java:558)
	at groovy.lang.GroovyClassLoader.doParseClass(GroovyClassLoader.java:298)
	at groovy.lang.GroovyClassLoader.parseClass(GroovyClassLoader.java:268)
	at groovy.lang.GroovyShell.parseClass(GroovyShell.java:688)
	at groovy.lang.GroovyShell.parse(GroovyShell.java:700)
	at org.jenkinsci.plugins.workflow.cps.CpsGroovyShell.doParse(CpsGroovyShell.java:129)
	at org.jenkinsci.plugins.workflow.cps.CpsGroovyShell.reparse(CpsGroovyShell.java:123)
	at org.jenkinsci.plugins.workflow.cps.CpsFlowExecution.parseScript(CpsFlowExecution.java:516)
	at org.jenkinsci.plugins.workflow.cps.CpsFlowExecution.start(CpsFlowExecution.java:479)
	at org.jenkinsci.plugins.workflow.job.WorkflowRun.run(WorkflowRun.java:269)
	at hudson.model.ResourceController.execute(ResourceController.java:97)
	at hudson.model.Executor.run(Executor.java:405)
Finished: FAILURE