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via Icesoft by nghia9691, 1 year ago
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java.lang.NullPointerException: 	at org.icepdf.core.pobjects.Document.getPageTree(Document.java:1204)	at org.icepdf.ri.common.SwingController.getPageTree(SwingController.java:3232)	at org.icepdf.ri.common.SwingController.reflectStateInComponents(SwingController.java:1046)	at org.icepdf.ri.common.SwingController.setToolBarVisible(SwingController.java:2806)