public TYPE_1 METHOD_1 ( TYPE_1 VAR_1 ) { if ( null != VAR_1 ) { synchronized ( this ) { if ( VAR_1 . METHOD_2 ( VAR_2 ) ) return VAR_1 ; } } return METHOD_3 ( ) ; } 

public TYPE_1 METHOD_1 ( TYPE_1 VAR_1 ) { if ( null != VAR_1 ) { synchronized ( this ) { if ( ! ( VAR_1 . METHOD_2 ( VAR_2 ) ) ) return VAR_1 ; } } return METHOD_3 ( ) ; } 
