public static java.lang.String METHOD_1 ( java.lang.String data , java.lang.String key ) { return TYPE_1 . METHOD_1 ( TYPE_1 . METHOD_2 ( data ) , key ) ; } 

public static java.lang.String METHOD_1 ( java.lang.String data , java.lang.String key ) { if ( ( data == null ) || ( data . isEmpty ( ) ) ) { return null ; } return TYPE_1 . METHOD_1 ( TYPE_1 . METHOD_2 ( data ) , key ) ; } 
