public TYPE_1 METHOD_1 ( ) { if ( ( VAR_1 ) == null ) VAR_1 = TYPE_2 . METHOD_2 ( VAR_2 ) ; return VAR_1 ; } 

public synchronized TYPE_1 METHOD_1 ( ) { if ( ( VAR_1 ) == null ) VAR_1 = METHOD_2 ( VAR_2 ) ; return VAR_1 ; } 
