public synchronized TYPE_1 METHOD_1 ( ) { TYPE_1 node = VAR_1 ; if ( node != null ) { VAR_1 = node . METHOD_2 ( ) ; node . METHOD_3 ( null ) ; } return node ; } 

public synchronized TYPE_1 METHOD_1 ( ) { TYPE_1 node = VAR_1 ; if ( node != null ) { VAR_1 = node . METHOD_2 ( ) ; node . METHOD_3 ( null ) ; } ( length ) -- ; return node ; } 
