FULL PRODUCT VERSION :
java version "1.4.1_02"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.1_02-b06)
Java HotSpot(TM) Client VM (build 1.4.1_02-b06, mixed mode)

FULL OS VERSION :
Microsoft Windows XP [Version 5.1.2600]

A DESCRIPTION OF THE PROBLEM :
c:\install>java ReadFile test.htm
sun.io.MalformedInputException: Reversed byte-order mark
        at sun.io.ByteToCharUnicode.convert(ByteToCharUnicode.java:161)

Cannot catch sun.io.__Exception in spec conform java, because
use of sun.io. classes is not supported by most classloader
and security policies.

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
1) created test file with batch file : c:\>iecrash.cmd >test.htm
   (or in Unix : % iecrash.sh > test.htm)
2) Ran ReadFile with ReadFile test.htm


------------------iecrash.cmd--------------------
@perl -e "print qq'\xFF\xFE'; print qq'\r\n' x 30000"
-------------------------------------------------

------------------iecrash.sh---------------------
#!/bin/sh
perl -e "print qq'\xFF\xFE'; print qq'\r\n' x 30000"
-------------------------------------------------

------------------ReadFile.java--------------------

import java.io.*;

public class ReadFile {
	public static void main(String[] a) {
		try {
			FileInputStream f = new FileInputStream(a[0]);
			BufferedReader in = new BufferedReader(   new InputStreamReader(f,"UnicodeBigUnmarked") );
    			String s;
	    
			while ( (s = in.readLine()) != null ) {
      			   System.out.println( s );
    			}

		}
		catch (Exception e) {
			e.printStackTrace();
		}
	}
}
-------------------------------------------------


EXPECTED VERSUS ACTUAL BEHAVIOR :
Some nice exception java.io.***
c:\install>java ReadFile test.htm
sun.io.MalformedInputException: Reversed byte-order mark
        at sun.io.ByteToCharUnicode.convert(ByteToCharUnicode.java:161)
        at sun.nio.cs.StreamDecoder$ConverterSD.convertInto(StreamDecoder.java:2
45)
        at sun.nio.cs.StreamDecoder$ConverterSD.implRead(StreamDecoder.java:295)

        at sun.nio.cs.StreamDecoder.read(StreamDecoder.java:180)
        at java.io.InputStreamReader.read(InputStreamReader.java:167)
        at java.io.BufferedReader.fill(BufferedReader.java:136)
        at java.io.BufferedReader.readLine(BufferedReader.java:299)
        at java.io.BufferedReader.readLine(BufferedReader.java:362)
        at ReadFile.main(ReadFile.java:10)

ERROR MESSAGES/STACK TRACES THAT OCCUR :
c:\install>java ReadFile test.htm
sun.io.MalformedInputException: Reversed byte-order mark
        at sun.io.ByteToCharUnicode.convert(ByteToCharUnicode.java:161)
        at sun.nio.cs.StreamDecoder$ConverterSD.convertInto(StreamDecoder.java:2
45)
        at sun.nio.cs.StreamDecoder$ConverterSD.implRead(StreamDecoder.java:295)

        at sun.nio.cs.StreamDecoder.read(StreamDecoder.java:180)
        at java.io.InputStreamReader.read(InputStreamReader.java:167)
        at java.io.BufferedReader.fill(BufferedReader.java:136)
        at java.io.BufferedReader.readLine(BufferedReader.java:299)
        at java.io.BufferedReader.readLine(BufferedReader.java:362)
        at ReadFile.main(ReadFile.java:10)

REPRODUCIBILITY :
This bug can be reproduced always.

---------- BEGIN SOURCE ----------
import java.io.*;

public class ReadFile {
	public static void main(String[] a) {
		try {
			FileInputStream f = new FileInputStream(a[0]);
			BufferedReader in = new BufferedReader(   new InputStreamReader(f,"UnicodeBigUnmarked") );
    			String s;
	    
			while ( (s = in.readLine()) != null ) {
      			   System.out.println( s );
    			}

		}
		catch (Exception e) {
			e.printStackTrace();
		}
	}
}
---------- END SOURCE ----------
(Review ID: 185048) 
======================================================================

N/A

sun.io.MalformedInputException,
sun.io.UnknownCharacterException and
sun.io.ConversionBufferFullException

are all subclasses of  java.io.CharConversionException.
The parent class is part of the public API so the test
case provided should be rewritten to catch 
java.io.CharConversionException. 

Converters such as UnicodeBigUnmarked, Unicode and
UnicodeLittleUnmarked are mostly retained for historical
compatibility purposes. Increasingly the common supported
encodings are supported by the java.nio charset API and
those NIO supported coders throw exceptions descended from
java.nio.charset.CharacterCodingException

Closing out as not a bug.
 xxxxx@xxxxx  2003-05-06