Must insert new content into body element-

Question

I'm using 1.4.0_01-b03 with JEditPane and the HTMLToolKit. Up until this afternoon everything was working fine. Now randomly, I am getting the following stack trace. I am loading using setPage(URL url) to set the contents. The contents of the page being load have not changed.
Any clues?
java.lang.RuntimeException: Must insert new content into body element-
     at javax.swing.text.html.HTMLDocument$HTMLReader.generateEndsSpecsForMidInsert(HTMLDocument.java:1878)
     at javax.swing.text.html.HTMLDocument$HTMLReader.<init>(HTMLDocument.java:1854)
     at javax.swing.text.html.HTMLDocument$HTMLReader.<init>(HTMLDocument.java:1729)
     at javax.swing.text.html.HTMLDocument$HTMLReader.<init>(HTMLDocument.java:1724)
     at javax.swing.text.html.HTMLDocument.getReader(HTMLDocument.java:125)
     at javax.swing.text.html.HTMLEditorKit.read(HTMLEditorKit.java:227)
     at javax.swing.JEditorPane.read(JEditorPane.java:504)
     at javax.swing.JEditorPane.read(JEditorPane.java:522)
     at javax.swing.JEditorPane$PageLoader.run(JEditorPane.java:551)

Answer 1

I ran into the same problem. I wanted to display programmatically created content which had images loaded from the jar file. I found that the following works, but I don't know why other ways fail.
URL url = getClass().getResource("page.html");
InputStream pageInput = getClass().getResourceAsStream("page.html");
// Read and modify page.html into variable "content"
html = new JEditorPane("text/html", "");
((HTMLDocument) html.getDocument()).setBase(url);
html.setText(content);