Evgeniy Muravitskiy created PDFBOX-2834:
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Summary: Violation in PDOutputIntent.getDestOutputProfile() method
Key: PDFBOX-2834
URL: https://issues.apache.org/jira/browse/PDFBOX-2834
Project: PDFBox
Issue Type: Bug
Components: PDModel
Affects Versions: 2.0.0
Environment: Windows 7, jdk 1.7.0_51
Reporter: Evgeniy Muravitskiy
Fix For: 2.0.0
Inside this method an Object (the result of
dictionary.getItem(COSName.DEST_OUTPUT_PROFILE) method call) is casted to
COSStream, but it can be also a COSObject containing COSStream which leads to
class cast exception.
public COSStream getDestOutputIntent()
{
return (COSStream) dictionary.getItem(COSName.DEST_OUTPUT_PROFILE);
}
Possible solutions :
1) Check class instance and handle them in proper way*
2) Usage of visitor pattern
*public COSStream getDestOutputIntent()
{
final COSBase item = dictionary.getItem(COSName.DEST_OUTPUT_PROFILE);
return getDestOutputIntent(item);
}
private COSStream getDestOutputIntent(COSBase object) {
if (object instanceof COSStream) {
return (COSStream) object;
} else if (object instanceof COSObject) {
return getDestOutputIntent(((COSObject) object).getObject());
} else {
return null;
}
}
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