Can't read anything in if input is not set

git-svn-id: https://svn.apache.org/repos/asf/geronimo/javamail/trunk@736909 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/geronimo-javamail_1.4/geronimo-javamail_1.4_provider/src/main/java/org/apache/geronimo/javamail/handlers/AbstractImageHandler.java b/geronimo-javamail_1.4/geronimo-javamail_1.4_provider/src/main/java/org/apache/geronimo/javamail/handlers/AbstractImageHandler.java
index cde0c65..1ac6c73 100644
--- a/geronimo-javamail_1.4/geronimo-javamail_1.4_provider/src/main/java/org/apache/geronimo/javamail/handlers/AbstractImageHandler.java
+++ b/geronimo-javamail_1.4/geronimo-javamail_1.4_provider/src/main/java/org/apache/geronimo/javamail/handlers/AbstractImageHandler.java
@@ -32,6 +32,7 @@
 import javax.imageio.ImageIO;
 import javax.imageio.ImageReader;
 import javax.imageio.ImageWriter;
+import javax.imageio.stream.ImageInputStream;
 
 /**
  * @version $Rev$ $Date$
@@ -57,6 +58,8 @@
             throw new UnsupportedDataTypeException("Unknown image type " + ds.getContentType());
         }
         ImageReader reader = (ImageReader) i.next();
+        ImageInputStream iis = ImageIO.createImageInputStream(ds.getInputStream());
+        reader.setInput(iis);
         return reader.read(0);
     }