Mark Hansohm created PDFBOX-1724:
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             Summary: Method createColorModel not implemented for PDCalGray
                 Key: PDFBOX-1724
                 URL: https://issues.apache.org/jira/browse/PDFBOX-1724
             Project: PDFBox
          Issue Type: Bug
    Affects Versions: 1.8.2
            Reporter: Mark Hansohm
            Priority: Minor


The method createColorModel is not implemented for the class PDCalGray - when 
called, it throws an IOException(!):
{code}
 /**
     * Create a Java colorspace for this colorspace.
     *
     * @return A color space that can be used for Java AWT operations.
     *
     * @throws IOException If there is an error creating the color space.
     */
protected ColorSpace createColorSpace() throws IOException
    {
        throw new IOException( "Not implemented" );
    }
{code}

The exception thrown is catched elsewhere (by an aspect?) but it leads to an 
ugly stacktrace in the logfile .. :
{code}
2013-09-24 09:32:11,858 ERROR - PDPixelMap : java.io.IOException: Not 
implemented
java.io.IOException: Not implemented
        at 
org.apache.pdfbox.pdmodel.graphics.color.PDCalGray.createColorModel(PDCalGray.java:114)
        at ...
        at org.apache.pdfbox.pdmodel.PDPage.convertToImage(PDPage.java:781)
....
{code}


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