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  1. JDK
  2. JDK-4434886

setTiling() behavior is not specified when parameters are negative

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    • Subcomponent:
    • Resolved In Build:
      beta2
    • CPU:
      generic
    • OS:
      generic

      Description



      Name: vrR10176 Date: 04/06/2001



      The sizes (width or height) of tile can not be negative. But api spec (jdk1.4.0beta-b58)
      does not specify behavior of javax.imageio.ImageWriteParam.setTiling() method if passed
      parameters tileWidth or tileHeight are negative.
      If tileWidth or tileHeight is negative the implementation of setTiling() assigns this
      value to ImageWriteParam protected fields tileWidth or tileHeight respectively without
      throwing any exception.

      To reproduce the issue execute following test.
      ------------ myImageWriteParam.java ------------------------
      import javax.imageio.ImageWriteParam;

      public class myImageWriteParam extends ImageWriteParam {

      public myImageWriteParam() {
      super(null);
      super.canWriteTiles = true;
      super.canOffsetTiles = true;
      }

      public static void main(String[] argv) {
      myImageWriteParam myimagewriteparam = new myImageWriteParam();
      myimagewriteparam.setTilingMode(ImageWriteParam.MODE_EXPLICIT);
      myimagewriteparam.setTiling(-1,-2,-3,-4);
      System.out.println("tileWidth: " + myimagewriteparam.tileWidth);
      System.out.println("tileHeight: " + myimagewriteparam.tileHeight);
      }
      }

      ------------ Logs ------------------------------------------
      $ javac myImageWriteParam.java

      $ java -version
      java version "1.4.0-beta"
      Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.0-beta-b58)
      Java HotSpot(TM) Client VM (build 1.4.0-beta-b58, mixed mode)

      $ java myImageWriteParam
      tileWidth: -1
      tileHeight: -2
      ------------------------------------------------------------

      ======================================================================

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            Assignee:
            dricesunw Daniel Rice (Inactive)
            Reporter:
            rslasunw Rsla Rsla (Inactive)
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