question: this method verifies and ensures display initialization . verification is based on synchronous execution of empty runnable . concode_field_sep ArrayList<IDisplayIntrospectionListener> listeners concode_elem_sep ThreadGroup root concode_elem_sep long retryTime concode_field_sep Display findDisplay concode_elem_sep Display doRun concode_elem_sep Display syncIntrospect concode_elem_sep void removeIntrospectionListener concode_elem_sep void run concode_elem_sep void asyncIntrospect concode_elem_sep Display visit concode_elem_sep void addIntrospectionListener
target: void function ( Display arg0 ) { while ( ! arg0 . isDisposed ( ) ) { try { new DisplayReference ( arg0 ) . execute ( new Callable < Boolean > ( ) { public Boolean call ( ) throws Exception { return true ; } } , 30000 ) ; break ; } catch ( Throwable loc0 ) { continue ; } } }