InputStreamReader.java (getEncoding): Return null when closed.

       * java/io/InputStreamReader.java (getEncoding): Return null when
       closed.
       * java/io/OutputStreamWriter.java (getEncoding): Likewise.

From-SVN: r62875

libjava/ChangeLog

 2003-02-13  Mark Wielaard  <mark@klomp.org>
+
+	* java/io/InputStreamReader.java (getEncoding): Return null when
+	closed.
+	* java/io/OutputStreamWriter.java (getEncoding): Likewise.
+
+2003-02-13  Mark Wielaard  <mark@klomp.org>
  
 	* java/util/zip/InflaterInputStream.java (read): Return zero when len
 	is zero.

libjava/java/io/InputStreamReader.java

-/* Copyright (C) 1998, 1999, 2001  Free Software Foundation
+/* Copyright (C) 1998, 1999, 2001, 2003  Free Software Foundation
 
    This file is part of libgcj.
 
@@ -70,7 +70,10 @@ public class InputStreamReader extends Reader
       }
   }
 
-  public String getEncoding() { return converter.getName(); }
+  public String getEncoding()
+  {
+    return in != null ? converter.getName() : null;
+  }
 
   public boolean ready() throws IOException
   {

libjava/java/io/OutputStreamWriter.java

-/* Copyright (C) 1998, 1999, 2000, 2001  Free Software Foundation
+/* Copyright (C) 1998, 1999, 2000, 2001, 2003  Free Software Foundation
 
    This file is part of libgcj.
 
@@ -28,7 +28,10 @@ public class OutputStreamWriter extends Writer
   private char[] work;
   private int wcount;
 
-  public String getEncoding() { return converter.getName(); }
+  public String getEncoding()
+  {
+    return out != null ? converter.getName() : null;
+  }
 
   private OutputStreamWriter(OutputStream out, UnicodeToBytes encoder)
   {