add InputStreamReader(InputStream,String)

classpath/java/io/InputStreamReader.java

@@ -17,6 +17,17 @@ public class InputStreamReader extends Reader {
     this.in = in;
   }
 
+  public InputStreamReader(InputStream in, String encoding)
+    throws UnsupportedEncodingException
+  {
+    this(in);
+
+    if (! encoding.equals("UTF-8")) {
+      throw new UnsupportedEncodingException(encoding);
+    }    
+  }
+
+  
   public int read(char[] b, int offset, int length) throws IOException {
     byte[] buffer = new byte[length];
     int c = in.read(buffer);