How to run demo?

[vkostyukov]

Somehow, sbt-jmh plugins believes that demo is a benchmark and tries to process it while running sbt 'project demo' 'run io.finch.demo.Main':

[info] Generating JMH benchmark Java source files...
Processing 61 classes from /Users/vkostyukov/workspace/finch/demo/target/scala-2.11/classes with "reflection" generator
Writing out Java source to /Users/vkostyukov/workspace/finch/demo/target/scala-2.11/generated-sources/jmh and resources to /Users/vkostyukov/workspace/finch/demo/target/scala-2.11/classes
Annotation generator had thrown the exception.
java.lang.IncompatibleClassChangeError: io.finch.demo.Main and io.finch.demo.Main$delayedInit$body disagree on InnerClasses attribute
    at java.lang.Class.getDeclaringClass0(Native Method)
    at java.lang.Class.getDeclaringClass(Class.java:1101)
    at java.lang.Class.getEnclosingClass(Class.java:1137)
    at java.lang.Class.getCanonicalName(Class.java:1226)
    at org.openjdk.jmh.generators.reflection.RFClassInfo.getQualifiedName(RFClassInfo.java:67)
    at org.openjdk.jmh.generators.core.BenchmarkGenerator.buildAnnotatedSet(BenchmarkGenerator.java:245)
    at org.openjdk.jmh.generators.core.BenchmarkGenerator.generate(BenchmarkGenerator.java:111)
    at org.openjdk.jmh.generators.bytecode.JmhBytecodeGenerator.main(JmhBytecodeGenerator.java:100)
    at pl.project13.scala.sbt.JmhPlugin$.generateBenchmarkJavaSources(JmhPlugin.scala:103)
    at pl.project13.scala.sbt.JmhPlugin$$anonfun$projectSettings$6.apply(JmhPlugin.scala:47)
    at pl.project13.scala.sbt.JmhPlugin$$anonfun$projectSettings$6.apply(JmhPlugin.scala:47)
    at scala.Function1$$anonfun$compose$1.apply(Function1.scala:47)
    at sbt.$tilde$greater$$anonfun$$u2219$1.apply(TypeFunctions.scala:40)
    at sbt.std.Transform$$anon$4.work(System.scala:63)
    at sbt.Execute$$anonfun$submit$1$$anonfun$apply$1.apply(Execute.scala:226)
    at sbt.Execute$$anonfun$submit$1$$anonfun$apply$1.apply(Execute.scala:226)
    at sbt.ErrorHandling$.wideConvert(ErrorHandling.scala:17)
    at sbt.Execute.work(Execute.scala:235)
    at sbt.Execute$$anonfun$submit$1.apply(Execute.scala:226)
    at sbt.Execute$$anonfun$submit$1.apply(Execute.scala:226)
    at sbt.ConcurrentRestrictions$$anon$4$$anonfun$1.apply(ConcurrentRestrictions.scala:159)
    at sbt.CompletionService$$anon$2.call(CompletionService.scala:28)
    at java.util.concurrent.FutureTask.run(FutureTask.java:262)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
    at java.util.concurrent.FutureTask.run(FutureTask.java:262)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at java.lang.Thread.run(Thread.java:745)

We should understand if there a way to to just run the demo w/o generating a benchmark.

Reported by https://twitter.com/dkovalenko_fun.