(bf) Unexpected behavior of StringCharBuffer.subSequence for values of start,end

Unexpected behaviour from StringCharBuffer.subSequence(int start,int end)
when preconditions on start and end are not met.

For:
end < 0: IllegalArgumentException thrown instead of IndexOutOfBoundsException.

start > remaining() : IllegalArgumentException thrown instead of
                      IndexOutOfBoundsException.

end > remaining(): IndexOutOfBoundsException not thrown.(no exception thrown)

end < start : IllegalArgumentException thrown instead of
              IndexOutOfBoundsException.
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String source = "This is the string used to test subSequence() method";
 StringCharBuffer c = (StringCharBuffer)(CharBuffer.wrap(source));

 // end < 0
 try {
   c.subSequence(1,-3);
   System.out.println("IndexOutOfBoundsException not thrown for end < 0");
 }
 catch(IndexOutOfBoundsException e) {
   System.out.println("Expected IndexOutOfBoundsException for end < 0");
 }
 catch(Exception e) {
   System.out.println(e.toString()+" thrown instead of IndexOutOfBoundsException for end < 0");
 }

 // start > remaining()
 try {
   c.subSequence(c.remaining()+1,3);
   System.out.println("IndexOutOfBoundsException not thrown for start > remaining");
 }
 catch(IndexOutOfBoundsException e) {
   System.out.println("Expected IndexOutOfBoundsException for start > remaining");
 }
 catch(Exception e) {
   System.out.println(e.toString()+" thrown instead of IndexOutOfBoundsException for start > remaining");
 }

 // end > remaining()
 try {
   StringCharBuffer c2 = (StringCharBuffer)(CharBuffer.wrap(source));
   c2.subSequence(1,c2.remaining()+1);
   System.out.println("IndexOutOfBoundsException not thrown for end > remaining");
 }
 catch(IndexOutOfBoundsException e) {
   System.out.println("Expected IndexOutOfBoundsException for end > remaining");
 }
 catch(Exception e) {
   System.out.println(e.toString()+" thrown instead of IndexOutOfBoundsException for end > remaining");
 }

 // end < start
 try {
   c.subSequence(5,1);
   System.out.println("IndexOutOfBoundsException not thrown for end < start");
 }
 catch(IndexOutOfBoundsException e) {
   System.out.println("Expected IndexOutOfBoundsException for end < start");
 }
 catch(Exception e) {
   System.out.println(e.toString()+" thrown instead of IndexOutOfBoundsException for end < start");
 }

###@###.### 2001-10-04
StringCharBuffer is no longer a public class. Since the bug is similar to 4416536. Will test the functionality in 4416536.