#79 NullPointerException with split by bookmarks level

[Anonymous]

The following steps will print a java.lang.NullPointerException:

1. Select Split plugin
2. Select Split by bookmarks levels
3. Click Fill from document

Exception trace

java.lang.NullPointerException
at com.lowagie.text.pdf.SimpleBookmark.exportToXMLNode(Unknown Source)
at com.lowagie.text.pdf.SimpleBookmark.exportToXML(Unknown Source)
at com.lowagie.text.pdf.SimpleBookmark.exportToXML(Unknown Source)
at org.pdfsam.plugin.split.components.JBLevelCombo$FillThread.run(JBLevelCombo.java:130)
at java.lang.Thread.run(Thread.java:619)