public boolean contains ( java.lang.Object VAR_1 ) { if ( ( VAR_2 ) == null ) return true ; return VAR_2 . contains ( TYPE_1 . METHOD_1 ( VAR_1 ) ) ; } 

public boolean contains ( java.lang.Object VAR_1 ) { if ( ( VAR_2 ) == null ) return false ; return VAR_2 . contains ( TYPE_1 . METHOD_1 ( VAR_1 ) ) ; } 
