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Must insert new content into body element-
java.lang.RuntimeException: Must insert new content into body element-	at javax.swing.text.html.HTMLDocument$HTMLReader.generateEndsSpecsForMidInsert(HTMLDocument.java:1909)	at javax.swing.text.html.HTMLDocument$HTMLReader.(HTMLDocument.java:1885)	at javax.swing.text.html.HTMLDocument$HTMLReader.(HTMLDocument.java:1760)	at javax.swing.text.html.HTMLDocument$HTMLReader.(HTMLDocument.java:1755)	at javax.swing.text.html.HTMLDocument.getReader(HTMLDocument.java:127)	at javax.swing.text.html.HTMLEditorKit.read(HTMLEditorKit.java:228)	at javax.swing.JEditorPane.read(JEditorPane.java:504)	at javax.swing.JEditorPane.read(JEditorPane.java:478)	at OneText.(OneText.java:53)	at OneReport.(OneReport.java:96)	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)	at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)	at java.lang.reflect.Constructor.newInstance(Constructor.java:274)	at java.lang.Class.newInstance0(Class.java:308)	at java.lang.Class.newInstance(Class.java:261)	at OneRun.run(OneRun.java:68)	at java.lang.Thread.run(Thread.java:534)