Index: javax/imageio/spi/ImageReaderSpi.java
===================================================================
RCS file: /cvsroot/classpath/classpath/javax/imageio/spi/ImageReaderSpi.java,v
retrieving revision 1.1
diff -u -r1.1 ImageReaderSpi.java
--- javax/imageio/spi/ImageReaderSpi.java	5 Oct 2004 07:07:53 -0000	1.1
+++ javax/imageio/spi/ImageReaderSpi.java	20 Oct 2004 11:07:44 -0000
@@ -110,4 +110,12 @@
   {
     return inputTypes;
   }
+
+  public boolean isOwnReader(ImageReader reader)
+  {
+    if (reader == null)
+      throw new IllegalArgumentException("reader may not be null");
+    
+    return pluginClassName.equals(reader.getClass().getName());
+  }
 }
Index: javax/imageio/spi/ImageWriterSpi.java
===================================================================
RCS file: /cvsroot/classpath/classpath/javax/imageio/spi/ImageWriterSpi.java,v
retrieving revision 1.2
diff -u -r1.2 ImageWriterSpi.java
--- javax/imageio/spi/ImageWriterSpi.java	5 Oct 2004 10:27:03 -0000	1.2
+++ javax/imageio/spi/ImageWriterSpi.java	20 Oct 2004 11:07:44 -0000
@@ -124,4 +124,12 @@
   {
     return true;
   }
+
+  public boolean isOwnWriter(ImageWriter writer)
+  {
+    if (writer == null)
+      throw new IllegalArgumentException("writer may not be null");
+
+    return pluginClassName.equals(writer.getClass().getName());
+  }
 }