more classpath progress

classpath/java/io/InputStreamReader.java

@@ -0,0 +1,22 @@
+package java.io;
+
+public class InputStreamReader extends Reader {
+  private final InputStream in;
+
+  public InputStreamReader(InputStream in) {
+    this.in = in;
+  }
+  
+  public int read(char[] b, int offset, int length) throws IOException {
+    byte[] buffer = new byte[length];
+    int c = in.read(buffer);
+    for (int i = 0; i < c; ++i) {
+      b[i + offset] = (char) buffer[i];
+    }
+    return c;
+  }
+
+  public void close() throws IOException {
+    in.close();
+  }
+}