Slowly but surely I'm working through the mauve suite. Currently, focus is on java.io.
Yesterday I got these fails:

FAIL: java.io.File.ReadMethods
FAIL: java.io.File.ExecuteMethods
FAIL: java.io.File.newFileURI
FAIL: java.io.File.WriteMethods
FAIL: java.io.File.URI
FAIL: java.io.File.security
FAIL: java.io.File.UnicodeURI
FAIL: java.io.File.createFile
FAIL: java.io.File.newFile
FAIL: java.io.File.emptyFile
FAIL: java.io.RandomAccessFile.security

After running these tests:

gnu.testlet.java.io.File.canWrite
gnu.testlet.java.io.File.ReadMethods
gnu.testlet.java.io.File.ExecuteMethods
gnu.testlet.java.io.File.newFileURI
gnu.testlet.java.io.File.WriteMethods
gnu.testlet.java.io.File.URI
gnu.testlet.java.io.File.security
gnu.testlet.java.io.File.list
gnu.testlet.java.io.File.listFiles
gnu.testlet.java.io.File.UnicodeURI
gnu.testlet.java.io.File.createFile
gnu.testlet.java.io.File.newFile
gnu.testlet.java.io.File.jdk11
gnu.testlet.java.io.File.emptyFile
gnu.testlet.java.io.CharArrayReader.OutOfBounds
gnu.testlet.java.io.CharArrayReader.MarkReset
gnu.testlet.java.io.CharArrayReader.ProtectedVars
gnu.testlet.java.io.CharArrayReader.SimpleRead
gnu.testlet.java.io.StringReader.Test
gnu.testlet.java.io.FilterInputStream.MarkReset
gnu.testlet.java.io.FilterInputStream.SimpleRead
gnu.testlet.java.io.RandomAccessFile.security
gnu.testlet.java.io.RandomAccessFile.randomaccessfile
gnu.testlet.java.io.RandomAccessFile.jdk11
gnu.testlet.java.io.RandomAccessFile.setLength
gnu.testlet.java.io.PushbackInputStream.Unread
gnu.testlet.java.io.PushbackInputStream.ProtectedVars
gnu.testlet.java.io.PushbackInputStream.BufferOverflow
gnu.testlet.java.io.FileDescriptor.jdk11
gnu.testlet.java.io.Serializable.ParentReadResolve
gnu.testlet.java.io.Serializable.readResolve
gnu.testlet.java.io.Serializable.ParentWriteReplace
gnu.testlet.java.io.Serializable.MySerializable
gnu.testlet.java.io.Serializable.BreakMe
gnu.testlet.java.io.Serializable.MyBreakMe
gnu.testlet.java.io.Serializable.BreakMeTestSer
gnu.testlet.java.io.FileWriter.jdk11
gnu.testlet.java.io.Writer.Test
gnu.testlet.java.io.ObjectStreamClass.DefinedNotStatic
gnu.testlet.java.io.ObjectStreamClass.DefinedNotFinal
gnu.testlet.java.io.ObjectStreamClass.Test
gnu.testlet.java.io.ObjectStreamClass.NotSerial
gnu.testlet.java.io.ObjectStreamClass.Serial
gnu.testlet.java.io.ObjectStreamClass.C
gnu.testlet.java.io.ObjectStreamClass.A
gnu.testlet.java.io.ObjectStreamClass.B
gnu.testlet.java.io.ObjectStreamClass.ProxyTest
gnu.testlet.java.io.ObjectStreamClass.Defined
gnu.testlet.java.io.SequenceInputStream.Test
gnu.testlet.java.io.FileInputStream.security
gnu.testlet.java.io.FileInputStream.fileinputstream
gnu.testlet.java.io.FileInputStream.read
gnu.testlet.java.io.BufferedInputStream.ZeroRead
gnu.testlet.java.io.BufferedInputStream.MarkReset
gnu.testlet.java.io.BufferedInputStream.Skip
gnu.testlet.java.io.BufferedInputStream.BigMark
gnu.testlet.java.io.BufferedInputStream.ProtectedVars
gnu.testlet.java.io.BufferedInputStream.SimpleRead
gnu.testlet.java.io.OutputStreamWriter.jdk11
gnu.testlet.java.io.LineNumberInputStream.Test
gnu.testlet.java.io.FilterReader.MarkReset
gnu.testlet.java.io.FilterReader.SimpleRead
gnu.testlet.java.io.Reader.Test
gnu.testlet.java.io.ObjectInputStream.registerValidation
gnu.testlet.java.io.ObjectInputStream.readResolve
gnu.testlet.java.io.ObjectInputStream.ReadResolveHelper
gnu.testlet.java.io.ObjectInputStream.security
gnu.testlet.java.io.ObjectInputStream.TestObjectInputValidation
gnu.testlet.java.io.ObjectInputStream.ClassLoaderTest
gnu.testlet.java.io.LineNumberReader.Test
gnu.testlet.java.io.LineNumberReader.mark
gnu.testlet.java.io.LineNumberReader.Test2
gnu.testlet.java.io.ByteArrayInputStream.MarkReset
gnu.testlet.java.io.ByteArrayInputStream.ProtectedVars
gnu.testlet.java.io.ByteArrayInputStream.SimpleRead
gnu.testlet.java.io.ObjectOutputStream.StreamDataTest
gnu.testlet.java.io.ObjectOutputStream.useProtocolVersion
gnu.testlet.java.io.ObjectOutputStream.security
gnu.testlet.java.io.BufferedReader.boundary
gnu.testlet.java.io.BufferedReader.MarkReset
gnu.testlet.java.io.BufferedReader.mark
gnu.testlet.java.io.BufferedReader.SimpleRead
gnu.testlet.java.io.StreamTokenizer.commentchar
gnu.testlet.java.io.StreamTokenizer.misc
gnu.testlet.java.io.StreamTokenizer.newline
gnu.testlet.java.io.StreamTokenizer.WordWhiteChars
gnu.testlet.java.io.StreamTokenizer.Test
gnu.testlet.java.io.StreamTokenizer.slashslash
gnu.testlet.java.io.StreamTokenizer.slashstar
gnu.testlet.java.io.InputStreamReader.hang
gnu.testlet.java.io.InputStreamReader.utf8
gnu.testlet.java.io.InputStreamReader.getEncoding
gnu.testlet.java.io.InputStreamReader.jdk11
gnu.testlet.java.io.InputStreamReader.except
gnu.testlet.java.io.BufferedWriter.Test
gnu.testlet.java.io.DataInputStream.readLine
gnu.testlet.java.io.DataInputStream.ReadStream2
gnu.testlet.java.io.DataInputStream.ReadReference
gnu.testlet.java.io.DataInputStream.ReadStream
gnu.testlet.java.io.DataInputStream.ReadReference2
gnu.testlet.java.io.FileReader.jdk11
gnu.testlet.java.io.PushbackReader.Unread
gnu.testlet.java.io.PushbackReader.BufferOverflow
gnu.testlet.java.io.PrintWriter.checkError
gnu.testlet.java.io.PrintWriter.jdk11
gnu.testlet.java.io.InputStream.Test
gnu.testlet.java.io.CharArrayWriter.BasicTests
gnu.testlet.java.io.CharArrayWriter.ProtectedVars
gnu.testlet.java.io.ByteArrayOutputStream.subclass
gnu.testlet.java.io.ByteArrayOutputStream.write
gnu.testlet.java.io.OutputStream.Test
gnu.testlet.java.io.PipedReaderWriter.Test
gnu.testlet.java.io.PipedReaderWriter.PipedTestWriter
gnu.testlet.java.io.ObjectInputOutput.OutputTest
gnu.testlet.java.io.ObjectInputOutput.LoopSerializationTest
gnu.testlet.java.io.ObjectInputOutput.SerTest
gnu.testlet.java.io.ObjectInputOutput.Compat2
gnu.testlet.java.io.ObjectInputOutput.Compat1
gnu.testlet.java.io.ObjectInputOutput.Test
gnu.testlet.java.io.ObjectInputOutput.Deserializable
gnu.testlet.java.io.ObjectInputOutput.SerBase
gnu.testlet.java.io.ObjectInputOutput.SerializableLoopB
gnu.testlet.java.io.ObjectInputOutput.ProxySerializationTest
gnu.testlet.java.io.ObjectInputOutput.InputTest
gnu.testlet.java.io.ObjectInputOutput.SerializableLoopA
gnu.testlet.java.io.ObjectInputOutput.ExtTest
gnu.testlet.java.io.ObjectInputOutput.HierarchyTest
gnu.testlet.java.io.BufferedOutputStream.Test
gnu.testlet.java.io.BufferedOutputStream.helper
gnu.testlet.java.io.BufferedOutputStream.interrupt
gnu.testlet.java.io.PipedStream.PipedStreamTestWriter
gnu.testlet.java.io.PipedStream.receive
gnu.testlet.java.io.PipedStream.Test
gnu.testlet.java.io.PipedStream.close
gnu.testlet.java.io.FilePermission.simple
gnu.testlet.java.io.FilePermission.traversal2
gnu.testlet.java.io.FilePermission.traversal
gnu.testlet.java.io.FilterWriter.MyFilterWriter
gnu.testlet.java.io.FilterWriter.write
gnu.testlet.java.io.StringBufferInputStream.MarkReset
gnu.testlet.java.io.StringBufferInputStream.ProtectedVars
gnu.testlet.java.io.StringBufferInputStream.SimpleRead
gnu.testlet.java.io.FileOutputStream.append
gnu.testlet.java.io.FileOutputStream.fileoutputstream
gnu.testlet.java.io.FileOutputStream.security
gnu.testlet.java.io.FileOutputStream.write
gnu.testlet.java.io.FileOutputStream.jdk12
gnu.testlet.java.io.StringWriter.Test
gnu.testlet.java.io.FilterOutputStream.write
gnu.testlet.java.io.PrintStream.subclass
gnu.testlet.java.io.PrintStream.encodings
gnu.testlet.java.io.Utf8Encoding.WriteRead
gnu.testlet.java.io.Utf8Encoding.mojo
gnu.testlet.java.io.Utf8Encoding.ReadReference
gnu.testlet.java.io.DataOutputStream.writeUTF
gnu.testlet.java.io.DataOutputStream.WriteRead2
gnu.testlet.java.io.DataOutputStream.WriteRead

And, tonight I fixed these issues:

java.io.File.ReadMethods
java.io.File.ExecuteMethods
java.io.File.WriteMethods

So, slowly, but surely. Even though most of these errors aren't show stoppers, they still need to be fixed.