java.lang.IllegalStateException: Deadlock risk: AWT tree lock acquired
showing component when not on the event dispatch thread. (NOTE: do
invokeAndWait to fix this assertion failure; that will increase the
Thread name: task1-1438375310
java.lang.IllegalStateException: The content of the adapter has changed but ListView did not receive a notification. Make sure the content of your adapter is not modified from a background thread, but only from the UI thread.