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  1. JDK
  2. JDK-6574555

PNGImageWriter incorrectly sets bKGD chunk

    Details

    • Type: Bug
    • Status: Resolved
    • Priority: P4
    • Resolution: Fixed
    • Affects Version/s: 5.0, 8, 9, 10, 11
    • Fix Version/s: 11
    • Component/s: client-libs
    • Labels:
    • Subcomponent:
    • Resolved In Build:
      b13
    • CPU:
      generic
    • OS:
      generic

      Description

      FULL PRODUCT VERSION :
      java version "1.5.0_09"
      Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0_09-b03)
      Java HotSpot(TM) Client VM (build 1.5.0_09-b03, mixed mode)

      ADDITIONAL OS VERSION INFORMATION :
      Microsoft Windows XP [Version 5.1.2600]

      A DESCRIPTION OF THE PROBLEM :
      PNGImageWriter always sets the bKGD chunk as grayscale because it sets each channel as the value of the red channel. Here is the code segment:

      int chunkRed = metadata.bKGD_red;
      int chunkGreen = metadata.bKGD_red;
      int chunkBlue = metadata.bKGD_red;

      I made a copy of the classes used and changed these lines to set the colors properly and it behaved as expected.


      REPRODUCIBILITY :
      This bug can be reproduced always.

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              • Assignee:
                jdv Jayathirth D V
                Reporter:
                bae Andrew Brygin
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                  Updated:
                  Resolved:
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