classpath: Closeable & Flushable

classpath/java/io/Closeable.java

@@ -0,0 +1,16 @@
+/* Copyright (c) 2012, Avian Contributors
+
+   Permission to use, copy, modify, and/or distribute this software
+   for any purpose with or without fee is hereby granted, provided
+   that the above copyright notice and this permission notice appear
+   in all copies.
+
+   There is NO WARRANTY for this software.  See license.txt for
+   details. */
+
+package java.io;
+
+public interface Closeable {
+  void close()
+    throws IOException;
+}

classpath/java/io/Flushable.java

@@ -0,0 +1,16 @@
+/* Copyright (c) 2012, Avian Contributors
+
+   Permission to use, copy, modify, and/or distribute this software
+   for any purpose with or without fee is hereby granted, provided
+   that the above copyright notice and this permission notice appear
+   in all copies.
+
+   There is NO WARRANTY for this software.  See license.txt for
+   details. */
+
+package java.io;
+
+public interface Flushable {
+  void flush()
+  	throws IOException;
+}

classpath/java/io/InputStream.java

@@ -10,7 +10,7 @@
 
 package java.io;
 
-public abstract class InputStream {
+public abstract class InputStream implements Closeable {
   public abstract int read() throws IOException;
 
   public int read(byte[] buffer) throws IOException {

classpath/java/io/OutputStream.java

@@ -10,7 +10,7 @@
 
 package java.io;
 
-public abstract class OutputStream {
+public abstract class OutputStream implements Closeable, Flushable {
   public abstract void write(int c) throws IOException;
 
   public void write(byte[] buffer) throws IOException {

classpath/java/io/Reader.java

@@ -10,7 +10,7 @@
 
 package java.io;
 
-public abstract class Reader {
+public abstract class Reader implements Closeable {
   public int read() throws IOException {
     char[] buffer = new char[1];
     int c = read(buffer);

classpath/java/io/Writer.java

@@ -10,7 +10,7 @@
 
 package java.io;
 
-public abstract class Writer {
+public abstract class Writer implements Closeable, Flushable {
   public void write(int c) throws IOException {
     char[] buffer = new char[] { (char) c };
     write(buffer);