protected TYPE_1 METHOD_1 ( TYPE_2 update ) { <BUG> TYPE_3 element = ( ( TYPE_3 ) ( update . METHOD_2 ( ) ) ) ;if ( element . METHOD_3 ( ) ) {</BUG> return null ; <BUG> }return super . METHOD_1 ( update ) ;</BUG> }
protected TYPE_1 METHOD_1 ( TYPE_2 update ) { return null ; } 
