OutputStreamWriter.java (writeChars): Use a 'do' loop.

* java/io/OutputStreamWriter.java (writeChars): Use a 'do' loop.
	Set 'out.count' earlier.
	(close): Call setFinished on converter.
	(flush): Always write work buffer.
	* java/io/PrintStream.java (writeChars): Do 'do' loop.
	(close): Call setFinished on converter.  Write a 'flush' array.
	* java/lang/natString.cc (getBytes): Call setFinished on
	converter.
	* gnu/gcj/convert/CharsetToBytesAdaptor.java (hasBytes): New
	field.
	(write): Set hasBytes.  Changed 'finished' logic.
	(havePendingBytes): Rewrote.
	(setFinished): New method.
	* gnu/gcj/convert/UnicodeToBytes.java (setFinished): New method.
	* testsuite/libjava.lang/RH194522.java: New file.
	* testsuite/libjava.lang/RH194522.out: New file.

From-SVN: r115039

libjava/gnu/gcj/convert/CharsetToBytesAdaptor.java

@@ -38,6 +38,11 @@ public class CharsetToBytesAdaptor extends UnicodeToBytes
    */
   private boolean closedEncoder;
 
+  /**
+   * True if there are bytes pending in the encoder.
+   */
+  private boolean hasBytes;
+
   /**
    * True if we're finished.
    */
@@ -112,20 +117,16 @@ public class CharsetToBytesAdaptor extends UnicodeToBytes
     // Set the current position.
     outBuf.position(count);
 
-    // If we've already said that there is no more input available,
-    // then we simply try to flush again.
+    // Do the conversion.
+    CoderResult result = encoder.encode(inBuf, outBuf, closedEncoder);
+    hasBytes = result == CoderResult.OVERFLOW;
     if (closedEncoder)
       {
-	CoderResult result = encoder.flush(outBuf);
+	result = encoder.flush(outBuf);
 	if (result == CoderResult.UNDERFLOW)
 	  finished = true;
-       }
-    else
-      {
-	// Do the conversion.  If there are no characters to write,
-	// then we are finished.
-	closedEncoder = ! inBuf.hasRemaining();
-	encoder.encode(inBuf, outBuf, closedEncoder);
+	else
+	  hasBytes = true;
       }
 
     // Mark the new end of buf.
@@ -140,7 +141,12 @@ public class CharsetToBytesAdaptor extends UnicodeToBytes
    */
   public boolean havePendingBytes()
   {
-    return ! finished;
+    return hasBytes;
+  }
+
+  public void setFinished()
+  {
+    closedEncoder = true;
   }
 
   // These aren't cached.

libjava/gnu/gcj/convert/UnicodeToBytes.java

@@ -1,4 +1,4 @@
-/* Copyright (C) 1999, 2000, 2001, 2003, 2005  Free Software Foundation
+/* Copyright (C) 1999, 2000, 2001, 2003, 2005, 2006  Free Software Foundation
 
    This file is part of libgcj.
 
@@ -172,6 +172,15 @@ public abstract class UnicodeToBytes extends IOConverter
     return false;
   }
 
+  /**
+   * Users should call this method when the input is coming to an
+   * end.  This signals that the next write (which might be
+   * zero-length) ought to flush any internal state.
+   */
+  public void setFinished()
+  {
+  }
+
   /** Indicate that the converter is resuable.
    * This class keeps track of converters on a per-encoding basis.
    * When done with an encoder you may call this method to indicate