src/share/classes/com/sun/imageio/plugins/png/PNGMetadata.java

*** 1642,1652 ****
                      zTXt_keyword.add(keyword);
  
                      int compressionMethod =
                          getEnumeratedAttribute(zTXt_node, "compressionMethod",
                                                 zTXt_compressionMethodNames);
!                     zTXt_compressionMethod.add(new Integer(compressionMethod));
  
                      String text = getAttribute(zTXt_node, "text");
                      zTXt_text.add(text);
  
                      zTXt_node = zTXt_node.getNextSibling();
--- 1642,1652 ----
                      zTXt_keyword.add(keyword);
  
                      int compressionMethod =
                          getEnumeratedAttribute(zTXt_node, "compressionMethod",
                                                 zTXt_compressionMethodNames);
!                     zTXt_compressionMethod.add(compressionMethod);
  
                      String text = getAttribute(zTXt_node, "text");
                      zTXt_text.add(text);
  
                      zTXt_node = zTXt_node.getNextSibling();