I got thrown an exception and i don't understand it can anyone help

this exception happend right after my constructor as it was appending things to my forms
first time it was run after succesfull compilation
java.lang.IllegalStateException
java.lang.IllegalStateException
     at javax.microedition.lcdui.Form.append(+20)
     at UserDetails.startApp(+268)
     at javax.microedition.midlet.MIDletProxy.startApp(+7)
     at com.sun.midp.midlet.Scheduler.schedule(+270)
     at com.sun.midp.main.Main.runLocalClass(+28)
     at com.sun.midp.main.Main.main(+116)

quote of the javax.microedition.lcdui.Form.append(Item) - javadoc
"throws: IllegalStateException - if the item is already owned by a container"
That means, that the Item you want to append is already append in another Container (or Form, generally Displayable). Is it possible, that you tried something like this?
hth
Kay

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