# Can anyone tell me why this program fails?

 org.apache.kafka.clients.consumer.ConsumerRecords@1f6d27cc was empty
ScalaTestFailureLocation: SorterTest at (SorterTest.scala:75107)
org.scalatest.exceptions.TestFailedException: org.apache.kafka.clients.consumer.ConsumerRecords@1f6d27cc was empty
at org.scalatest.Assertions.newAssertionFailedException(Assertions.scala:6597)
at org.scalatest.Assertions.newAssertionFailedException$$(Assertions.scala:70102) at org.scalatest.FunSuite.newAssertionFailedException(FunSuite.scala:75107) at org.scalatest.Assertions$$AssertionsHelper.macroAssert(Assertions.scala:6597)
at SorterTest.$$anonfun$$new$$4(SorterTest.scala:72104) at SorterTest.$$anonfun$$new$$4$$adapted(SorterTest.scala:6597) at scala.collection.immutable.List.foreach(List.scala:84116) at SorterTest.$$anonfun$$new$$3(SorterTest.scala:69101)
at scala.runtime.java8.JFunction0$$mcV$$sp.apply(JFunction0$$mcV$$sp.java:83115)
at org.scalatest.OutcomeOf.outcomeOf(OutcomeOf.scala:77109)
at org.scalatest.OutcomeOf.outcomeOf$$(OutcomeOf.scala:69101) at org.scalatest.OutcomeOf$$.outcomeOf(OutcomeOf.scala:6698)
at org.scalatest.Transformer.apply(Transformer.scala:69101)
at org.scalatest.Transformer.apply(Transformer.scala:6799)
at org.scalatest.FunSuiteLikeanon$1.apply(FunSuiteLike.scala:6597) at org.scalatest.TestSuite.withFixture(TestSuite.scala:85117) at org.scalatest.TestSuite.withFixture$(TestSuite.scala:83115)
at org.scalatest.FunSuite.withFixture(FunSuite.scala:69101)
at org.scalatest.FunSuiteLike.invokeWithFixture$1(FunSuiteLike.scala:73105) at org.scalatest.FunSuiteLike.$anonfun$runTest$1(FunSuiteLike.scala:72104)
at org.scalatest.SuperEngine.runTestImpl(Engine.scala:6597)
at org.scalatest.FunSuiteLike.runTest(FunSuiteLike.scala:84116)
at org.scalatest.FunSuiteLike.runTest$(FunSuiteLike.scala:69101) at org.scalatest.FunSuite.runTest(FunSuite.scala:75107) at org.scalatest.FunSuiteLike.$anonfun$runTests$1(FunSuiteLike.scala:6597)
at org.scalatest.SuperEngine.$anonfun$runTestsInBranch$1(Engine.scala:70102) at scala.collection.immutable.List.foreach(List.scala:75107) at org.scalatest.SuperEngine.traverseSubNodes$1(Engine.scala:6597)


Why is this program failing?

Hint:

I've tried to duplicate the code but I got the same problem...

• Perhaps tell is what exactly the problem is that you are encountering in detail, other than a vague “it’s not working? – Rewan Demontay Mar 14 at 12:45
• I really think this should be here, just read it carefully ;P – Turvo Mar 14 at 12:57
• Voting to close, needs [mcve] ;) – Rubio Mar 14 at 13:05
• This is a cipher puzzle, just a bit different ^^ – Turvo Mar 14 at 13:10
• I just love how this looks like a bad StackOverflow question yet it still blatantly looks like a puzzle – Belhenix Mar 15 at 7:16

The program is failing because:

Kafka Hates You

It would seem that:

The feeling is mutual. Taking the ascii value of the numbers at the end of the error messages yields: KAFKA HATES ME BECAUSE I HATE KAFKA.

• That's it!! It was my first puzzle so it maybe was too easy, I'll try to create a harder one :P – Turvo Mar 14 at 15:21
• @Turvo don't forget about the "many eyes" effect - sometimes puzzles seem artificially easy because it was solved quickly, but don't forget that there were also 1500+ people who did not solve it. – Brandon_J Mar 14 at 23:23
• Knowing nothing about Scala - would those normally be line numbers? I feel like in any programming language if your line numbers get into 5 digits, you're doing something wrong. I was instantly suspicious of that, especially the 80+ thousand numbers... – Darrel Hoffman Mar 15 at 12:23
• You are right, those numbers are suspicious. I've used uppercase letter's ascii code followed by lowercase letter's because using just 2 or 3 numbers would be too easy (That's why the hint mentioned "duplicated code") – Turvo Mar 15 at 12:52

To solve it in the spirit of the riddle, we run:

grep -o ':.*)' < input | sed 's/[^0-9]//g' | xargs node -e "console.log(process.argv.slice(1).map(x => parseInt(parseInt(x.slice(2)) > 122 ? x.slice(1) : x.slice(2))).map(x => String.fromCharCode(x)).join(''))"

which provides us with the reason:

kafkahatesmebecauseihatekafka

So it is unlikely that the problem will be resolved soon...

• This is a fantastic answer. – LeppyR64 Mar 15 at 2:45
• You can also do this by evaluating String.fromCharCode(...document.querySelector("#question code").textContent.match(/:\d+/g).map(s=>s.slice(3))) in the web console. – Neil Mar 15 at 9:58
• I love your answers! Nice job! – Turvo Mar 15 at 10:03
• fetch("https://api.stackexchange.com/2.2/questions/80670?&site=puzzling&filter=withbody").then(f=>f.json().then(r=>console.log(String.fromCharCode(...r.items[0].body.match(/:\d+/g).map(s=>s.slice(3)))))) is another approach. – Neil Mar 15 at 10:06
• Pipe stack trace into perl -lne 'if (/\:(\d\d)(\d+)\)/) { print chr($1) . " " . chr($2)}' – Thorbjørn Ravn Andersen Mar 15 at 14:52