public TYPE_1 METHOD_1 ( long number ) { return new TYPE_1 ( TYPE_2 . METHOD_2 ( VAR_1 , number ) ) ; } 

public TYPE_1 METHOD_1 ( long number ) { if ( number >= 0 ) return new TYPE_1 ( TYPE_2 . METHOD_2 ( VAR_1 , number ) ) ; else return null ; } 
