Patch: FYI: Minor conformance changes

[Tom Tromey <tromey at redhat dot com>]

I'm checking this in.  Built and tested on x86.

This patch makes some minor changes for better conformance with the
spec.

Tom

Index: ChangeLog
from  Tom Tromey  <tromey@redhat.com>
	Re-merge with Classpath:
	* java/util/Comparator (equals): Added.
	* java/io/PipedWriter.java (write): Changed argument to `int'.

	* java/io/FileDescriptor.java (FileDescriptor()): New
	constructor.
	* java/io/File.java (getAbsoluteFile): Doesn't throw IOException.

Index: java/io/File.java
===================================================================
RCS file: /cvs/gcc/gcc/libjava/java/io/File.java,v
retrieving revision 1.19
diff -u -r1.19 File.java
--- java/io/File.java 2001/07/18 18:35:12 1.19
+++ java/io/File.java 2001/08/31 22:06:20
@@ -157,7 +157,7 @@
   }
 
   /** @since 1.2 */
-  public File getAbsoluteFile () throws IOException
+  public File getAbsoluteFile ()
   {
     return new File (getAbsolutePath());
   }
Index: java/io/FileDescriptor.java
===================================================================
RCS file: /cvs/gcc/gcc/libjava/java/io/FileDescriptor.java,v
retrieving revision 1.7
diff -u -r1.7 FileDescriptor.java
--- java/io/FileDescriptor.java 2001/08/02 23:46:39 1.7
+++ java/io/FileDescriptor.java 2001/08/31 22:06:20
@@ -43,6 +43,11 @@
   static final int SET = 0;
   static final int CUR = 1;
 
+  // This constructor is specified to create an invalid descriptor.
+  public FileDescriptor ()
+  {
+  }
+
   // Open a file.  MODE is a combination of the above mode flags.
   FileDescriptor (String path, int mode) throws FileNotFoundException
   {
Index: java/io/PipedWriter.java
===================================================================
RCS file: /cvs/gcc/gcc/libjava/java/io/PipedWriter.java,v
retrieving revision 1.6
diff -u -r1.6 PipedWriter.java
--- java/io/PipedWriter.java 2001/02/20 19:01:55 1.6
+++ java/io/PipedWriter.java 2001/08/31 22:06:21
@@ -104,9 +104,9 @@
     * @exception IOException If the stream has not been connected or has
     *                        been closed.
     */  
-  public void write(char b) throws IOException
+  public void write(int b) throws IOException
   {
-    read_buf[0] = b;
+    read_buf[0] = (char) (b & 0xffff);
     sink.receive (read_buf, 0, 1);
   }
   
Index: java/util/Comparator.java
===================================================================
RCS file: /cvs/gcc/gcc/libjava/java/util/Comparator.java,v
retrieving revision 1.2
diff -u -r1.2 Comparator.java
--- java/util/Comparator.java 2001/02/15 06:43:00 1.2
+++ java/util/Comparator.java 2001/08/31 22:06:21
@@ -1,5 +1,5 @@
 /* Comparator.java -- Interface for objects that specify an ordering
-   Copyright (C) 1998 Free Software Foundation, Inc.
+   Copyright (C) 1998, 2001 Free Software Foundation, Inc.
 
 This file is part of GNU Classpath.
 
@@ -61,4 +61,13 @@
    *   compared by this ordering.
    */
   int compare(Object o1, Object o2);
+
+  /**
+   * Return true if the object is equal to this object.  To be
+   * considered equal, the argument object must satisfy the constraints
+   * of <code>Object.equals()</code>, be a Comparator, and impose the
+   * same ordering as this Comparator.
+   * @param obj The object
+   */
+  boolean equals(Object obj);
 }