more classpath progress

classpath/java/io/OutputStreamWriter.java

@@ -0,0 +1,25 @@
+package java.io;
+
+public class OutputStreamWriter extends Writer {
+  private final OutputStream out;
+
+  public OutputStreamWriter(OutputStream out) {
+    this.out = out;
+  }
+  
+  public void write(char[] b, int offset, int length) throws IOException {
+    byte[] buffer = new byte[length];
+    for (int i = 0; i < length; ++i) {
+      buffer[i] = (byte) b[i + offset];
+    }
+    out.write(buffer);
+  }
+
+  public void flush() throws IOException {
+    out.flush();
+  }
+
+  public void close() throws IOException {
+    out.close();
+  }
+}