InputStreamReader.java (refill): Only call refill on BufferedInputStream when…

InputStreamReader.java (refill): Only call refill on BufferedInputStream when appropriate constraints are met.

	* java/io/InputStreamReader.java (refill): Only call refill on
	BufferedInputStream when appropriate constraints are met.

From-SVN: r44675

libjava/ChangeLog

+2001-08-06  Tom Tromey  <tromey@redhat.com>
+
+	* java/io/InputStreamReader.java (refill): Only call refill on
+	BufferedInputStream when appropriate constraints are met.
+
 2001-08-05  Tom Tromey  <tromey@redhat.com>
 
 	* java/io/StringWriter.java: Merged with Classpath.

libjava/java/io/InputStreamReader.java

@@ -149,7 +149,9 @@ public class InputStreamReader extends Reader
 	// We have knowledge of the internals of BufferedInputStream
 	// here.  Eww.
 	in.mark (0);
-	boolean r = in.refill ();
+	// BufferedInputStream.refill() can only be called when
+	// `pos>=count'.
+	boolean r = in.pos < in.count || in.refill ();
 	in.reset ();
 	if (! r)
 	  return false;