Merging of TIFF Pages with Sub-IFDs caused a NPE #430
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…FF.TAG_COMPRESSION entry
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Merging of TIFF Pages with Sub IFDs failed when there's no TIFF.TAG_COMPRESSION in the Sub IFD:
java.lang.NullPointerException
at com.twelvemonkeys.contrib.tiff.TIFFUtilities$TIFFPage.writeDirectoryData(TIFFUtilities.java:481)
at com.twelvemonkeys.contrib.tiff.TIFFUtilities$TIFFPage.writeDirectoryData(TIFFUtilities.java:335)
at com.twelvemonkeys.contrib.tiff.TIFFUtilities$TIFFPage.write(TIFFUtilities.java:325)