PipedOutputStream.java (flush): Declare as throwing IOException.

	* java/io/PipedOutputStream.java (flush): Declare as throwing
	IOException.
	(close): Likewise.
	* java/io/PipedWriter.java (close): Declare as throwing
	IOException.
	* java/io/StringWriter.java (close): Declare as throwing
	IOException.

From-SVN: r62401

libjava/ChangeLog

+2003-02-04  Tom Tromey  <tromey@redhat.com>
+
+	* java/io/PipedOutputStream.java (flush): Declare as throwing
+	IOException.
+	(close): Likewise.
+	* java/io/PipedWriter.java (close): Declare as throwing
+	IOException.
+	* java/io/StringWriter.java (close): Declare as throwing
+	IOException.
+
 2003-02-03  Ranjit Mathew <rmathew@hotmail.com>
 
 	* java/lang/natRuntime.cc (java::lang::Runtime::_load)): Take care

libjava/java/io/PipedOutputStream.java

 /* PipedOutputStream.java -- Write portion of piped streams.
-   Copyright (C) 1998, 2000, 2001 Free Software Foundation, Inc.
+   Copyright (C) 1998, 2000, 2001, 2003 Free Software Foundation, Inc.
 
 This file is part of GNU Classpath.
 
@@ -154,7 +154,7 @@ public class PipedOutputStream extends OutputStream
     *           had read all available data. Thats not the case - this method
     *           appears to be a no-op?
     */
-  public void flush()
+  public void flush() throws IOException
   {
   }
   
@@ -165,7 +165,7 @@ public class PipedOutputStream extends OutputStream
     *
     * @exception IOException If an error occurs
     */
-  public void close()
+  public void close() throws IOException
   {
     // A close call on an unconnected PipedOutputStream has no effect.
     if (sink != null)

libjava/java/io/PipedWriter.java

 /* PipedWriter.java -- Write portion of piped character streams.
-   Copyright (C) 1998, 2000, 2001 Free Software Foundation, Inc.
+   Copyright (C) 1998, 2000, 2001, 2003 Free Software Foundation, Inc.
 
 This file is part of GNU Classpath.
 
@@ -166,7 +166,7 @@ public class PipedWriter extends Writer
     *
     * @exception IOException If an error occurs
     */
-  public void close()
+  public void close() throws IOException
   {
     // A close call on an unconnected PipedWriter has no effect.
     if (sink != null)

libjava/java/io/StringWriter.java

 /* StringWriter.java -- Writes bytes to a StringBuffer
-   Copyright (C) 1998, 1999, 2000, 2001 Free Software Foundation, Inc.
+   Copyright (C) 1998, 1999, 2000, 2001, 2003 Free Software Foundation, Inc.
 
 This file is part of GNU Classpath.
 
@@ -61,7 +61,7 @@ public class StringWriter extends Writer
    * This method closes the stream.  The contents of the internal buffer
    * can still be retrieved, but future writes are not guaranteed to work.
    */
-  public void close ()
+  public void close () throws IOException
   {
     // JCL says this does nothing.  This seems to violate the Writer
     // contract, in that other methods should still throw an