java.lang.NullPointerException: This exception has no message.

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java.lang.NullPointerException:
at org.icepdf.ri.common.PrintHelper.(PrintHelper.java:155)
at org.icepdf.ri.common.SwingController.setPrintDefaultMediaSizeName(SwingController.java:2807)
at fr.truckinfo.util.pdf.PDFDialog.(PDFDialog.java:40)

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