[commit-cp] [bugs #10603] ByteLookupTable and ShortLookupTable / index out of bounds

[David Gilbert]

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 of the project: classpath.




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[bugs #10603] Full Item Snapshot:

URL: <http://savannah.gnu.org/bugs/?func=detailitem&item_id=10603>
Project: classpath
Submitted by: David Gilbert
On: Wed 10/06/2004 at 22:15

Category:  None
Severity:  5 - Average
Resolution:  None
Privacy:  Public
Assigned to:  None
Status:  Open
Platform Version:  None


Summary:  ByteLookupTable and ShortLookupTable / index out of bounds

Original Submission:  The following code throws an 
ArrayIndexOutOfBoundsException:

  public static void main(String[] args) {
    byte[] data = {105, 104, 103, 102, 101, 100};
    ByteLookupTable t = new ByteLookupTable(100, data);
    // check 3-band source with 1-band lookup table
    int[] src = new int[] {100, 101, 102};
    int[] dst = t.lookupPixel(src, null);
  }

This bug is triggered in the lookupPixel(src, dst) methods of both the 
java.awt.image.ByteLookupTable and java.awt.image.ShortLookupTable classes when 
(a) dst is null, and (b) the number of bands in the lookup table is less than 
the number of elements in src.

Looking at the source code, it appears that 'dst' should be initialised with 
'src.length' elements, rather than 'numComponents' elements.

Mauve tests are attached.





File Attachments
-------------------

-------------------------------------------------------
Date: Wed 10/06/2004 at 22:15  Name: lookupPixel.java  Size: 6.71KB   By: 
trebligd
Mauve test
http://savannah.gnu.org/bugs/download.php?item_id=10603&amp;item_file_id=1739






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