See test_AB006() in
daffodil-core/src/test/scala-debug/daffodil/TresysTest2.scala

org.jdom.IllegalDataException: The data "4Vx" is not legal for a JDOM character content: 0x12 is not a legal XML character.
at org.jdom.Text.setText(Text.java:188)
at org.jdom.Text.<init>(Text.java:99)
at daffodil.processors.StringDelimitedEndOfData$$anon$15$$anonfun$parse$11$$anonfun$apply$16.apply(Primitives.scala:420)
at daffodil.processors.StringDelimitedEndOfData$$anon$15$$anonfun$parse$11$$anonfun$apply$16.apply(Primitives.scala:386)
at daffodil.util.Logging$class.withLoggingLevel(Logger.scala:184)
at daffodil.processors.Parser.withLoggingLevel(Parser.scala:90)
at daffodil.processors.StringDelimitedEndOfData$$anon$15$$anonfun$parse$11.apply(Primitives.scala:386)
at daffodil.processors.StringDelimitedEndOfData$$anon$15$$anonfun$parse$11.apply(Primitives.scala:386)
at daffodil.processors.WithParseErrorThrowing$class.withParseErrorThrowing(Parser.scala:187)
at daffodil.processors.StringDelimitedEndOfData.withParseErrorThrowing(Primitives.scala:372)
at daffodil.processors.StringDelimitedEndOfData$$anon$15.parse(Primitives.scala:385)
at daffodil.processors.Parser.parse1(Parser.scala:104)
at daffodil.processors.SeqCompParser.parse(Parser.scala:243)
at daffodil.processors.Parser.parse1(Parser.scala:104)
at daffodil.processors.SeqCompParser.parse(Parser.scala:245)
at daffodil.processors.Parser.parse1(Parser.scala:104)
at daffodil.processors.SeqCompParser.parse(Parser.scala:243)
at daffodil.processors.Parser.parse1(Parser.scala:104)
at daffodil.processors.SeqCompParser.parse(Parser.scala:245)
at daffodil.processors.Parser.parse1(Parser.scala:104)
at daffodil.processors.RepExactlyNPrim$$anon$1$$anonfun$parseAllRepeats$1.apply$mcVI$sp(RepParsers.scala:64)
at scala.collection.immutable.Range.foreach$mVc$sp(Range.scala:81)
at daffodil.processors.RepExactlyNPrim$$anon$1.parseAllRepeats(RepParsers.scala:62)
at daffodil.processors.RepPrim$RepParser.parse(RepParsers.scala:46)
at daffodil.processors.Parser.parse1(Parser.scala:104)
at daffodil.processors.SeqCompParser.parse(Parser.scala:243)
at daffodil.processors.Parser.parse1(Parser.scala:104)
at daffodil.processors.SeqCompParser.parse(Parser.scala:245)
at daffodil.processors.Parser.parse1(Parser.scala:104)
at daffodil.processors.SeqCompParser.parse(Parser.scala:243)
at daffodil.processors.Parser.parse1(Parser.scala:104)
at daffodil.processors.SeqCompParser.parse(Parser.scala:245)
at daffodil.processors.Parser.parse1(Parser.scala:104)
at daffodil.processors.SeqCompParser.parse(Parser.scala:243)
at daffodil.processors.Parser.parse1(Parser.scala:104)
at daffodil.processors.SeqCompParser.parse(Parser.scala:245)
at daffodil.processors.Parser.parse1(Parser.scala:104)
at daffodil.processors.SeqCompParser.parse(Parser.scala:243)
at daffodil.processors.Parser.parse1(Parser.scala:104)
at daffodil.processors.SeqCompParser.parse(Parser.scala:245)
at daffodil.processors.Parser.parse1(Parser.scala:104)
at daffodil.processors.SeqCompParser.parse(Parser.scala:243)
at daffodil.processors.Parser.parse1(Parser.scala:104)
at daffodil.processors.SeqCompParser.parse(Parser.scala:245)
at daffodil.processors.Parser.parse1(Parser.scala:104)
at daffodil.processors.RepExactlyNPrim$$anon$1$$anonfun$parseAllRepeats$1.apply$mcVI$sp(RepParsers.scala:64)
at scala.collection.immutable.Range.foreach$mVc$sp(Range.scala:81)
at daffodil.processors.RepExactlyNPrim$$anon$1.parseAllRepeats(RepParsers.scala:62)
at daffodil.processors.RepPrim$RepParser.parse(RepParsers.scala:46)
at daffodil.processors.Parser.parse1(Parser.scala:104)
at daffodil.processors.SeqCompParser.parse(Parser.scala:243)
at daffodil.processors.Parser.parse1(Parser.scala:104)
at daffodil.processors.SeqCompParser.parse(Parser.scala:245)
at daffodil.processors.Parser.parse1(Parser.scala:104)
at daffodil.processors.SeqCompParser.parse(Parser.scala:243)
at daffodil.processors.Parser.parse1(Parser.scala:104)
at daffodil.processors.SeqCompParser.parse(Parser.scala:245)
at daffodil.processors.Parser.parse1(Parser.scala:104)
at daffodil.processors.SeqCompParser.parse(Parser.scala:243)
at daffodil.processors.Parser.parse1(Parser.scala:104)
at daffodil.processors.SeqCompParser.parse(Parser.scala:245)
at daffodil.processors.Parser.parse1(Parser.scala:104)
at daffodil.processors.SeqCompParser.parse(Parser.scala:243)
at daffodil.processors.Parser.parse1(Parser.scala:104)
at daffodil.processors.SeqCompParser.parse(Parser.scala:245)
at daffodil.processors.Parser.parse1(Parser.scala:104)
at daffodil.processors.SeqCompParser.parse(Parser.scala:243)
at daffodil.processors.Parser.parse1(Parser.scala:104)
at daffodil.processors.DataProcessor$$anon$1.liftedTree1$1(Runtime.scala:69)
at daffodil.processors.DataProcessor$$anon$1.<init>(Runtime.scala:68)
at daffodil.processors.DataProcessor.parse(Runtime.scala:65)
at daffodil.processors.DataProcessor.parse(Runtime.scala:61)
at daffodil.tdml.ParserTestCase.runParseExpectSuccess(TDMLRunner.scala:368)
at daffodil.tdml.ParserTestCase.runProcessor(TDMLRunner.scala:283)
at daffodil.tdml.TestCase.run(TDMLRunner.scala:239)
at daffodil.tdml.DFDLTestSuite.runOneTestNoTDMLValidation(TDMLRunner.scala:121)
at daffodil.tdml.DFDLTestSuite.runOneTest(TDMLRunner.scala:101)
at daffodil.TresysTests2.test_AB006(TresysTests2.scala:34)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at junit.framework.TestCase.runTest(TestCase.java:168)
at junit.framework.TestCase.runBare(TestCase.java:134)
at junit.framework.TestResult$1.protect(TestResult.java:110)
at junit.framework.TestResult.runProtected(TestResult.java:128)
at junit.framework.TestResult.run(TestResult.java:113)
at junit.framework.TestCase.run(TestCase.java:124)
at junit.framework.TestSuite.runTest(TestSuite.java:243)
at junit.framework.TestSuite.run(TestSuite.java:238)
at org.junit.internal.runners.JUnit38ClassRunner.run(JUnit38ClassRunner.java:83)
at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)
at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)