java.lang.NullPointerException

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    • java.lang.NullPointerException at sun.net.www.protocol.jar.JarURLConnection.getHeaderField(JarURLConnection.java:176) at java.net.URLConnection.getContentEncoding(URLConnection.java:392) at javax.swing.JEditorPane.getStream(JEditorPane.java:700) at javax.swing.JEditorPane.setPage(JEditorPane.java:392) at items.display.WebPageDisplayItem.initDisplay(WebPageDisplayItem.java:197)
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