log log purpos debug log trace messag provid mechan allow develop enabl output minor event focus specif problem area follow go insid argo uml usecasediagram us us diagram us set scenario describ interact user us diagram displai relationship actor us case compon us diagram us case actor concurr modif except project load load project follow stack dump consol critic subsystem appear culprit except thread awt event queue java util concurr modif except java util list itr check comodif unknown sourc java util list itr unknown sourc argouml cognit ui list prioriti item child count list prioriti item java argouml ui tree model composit child count tree model composit java argouml cognit ui perspect child count perspect java javax swing tree variabl height layout cach tree node insert unknown sourc javax swing plaf basic basic tree ui handler tree node insert unknown sourc argouml ui tree model support tree node insert tree model support java argouml cognit ui prioriti item ad prioriti java argouml cognit ui pane run pane java java awt event invoc event dispatch unknown sourc java awt event queue dispatch event unknown sourc java awt event dispatch thread pump event filter unknown sourc java awt event dispatch thread pump event filter unknown sourc java awt event dispatch thread pump event hierarchi unknown sourc java awt event dispatch thread pump event unknown sourc java awt event dispatch thread pump event unknown sourc java awt event dispatch thread run unknown sourc 