In daffodil-test/src/test/scala-debug/daffodil/section13/nillable/TestNillableDebug.scala, test_empty_infoset causes Daffodil to crash, giving this stack trace:

UTF-8 text starting at byte 0 is: (catblablahblah)
Data (hex) starting at byte 0 is: (0x636174626C61626C6168626C6168)
[info] - test_empty_infoset *** FAILED ***
[info] java.lang.IndexOutOfBoundsException: 0
[info] at scala.collection.LinearSeqOptimized$class.apply(LinearSeqOptimized.scala:51)
[info] at scala.collection.immutable.List.apply(List.scala:76)
[info] at daffodil.tdml.DFDLInfoset.contents(TDMLRunner.scala:825)
[info] at daffodil.tdml.Infoset.contents(TDMLRunner.scala:820)
[info] at daffodil.tdml.ParserTestCase.verifyParseInfoset(TDMLRunner.scala:338)
[info] at daffodil.tdml.ParserTestCase.runParseExpectSuccess(TDMLRunner.scala:426)
[info] at daffodil.tdml.ParserTestCase.runProcessor(TDMLRunner.scala:300)
[info] at daffodil.tdml.TestCase.run(TDMLRunner.scala:254)
[info] at daffodil.tdml.DFDLTestSuite.runOneTestNoTDMLValidation(TDMLRunner.scala:134)
[info] at daffodil.tdml.DFDLTestSuite.runOneTest(TDMLRunner.scala:114)