public static < TYPE_1 > void METHOD_1 ( TYPE_1 t ) { TYPE_2 . METHOD_2 ( ) . METHOD_3 ( ) . delete ( ) . METHOD_4 ( t ) ; } 

public static < TYPE_1 > void METHOD_1 ( TYPE_1 t ) { if ( null == t ) return ; TYPE_2 . METHOD_2 ( ) . METHOD_3 ( ) . delete ( ) . METHOD_4 ( t ) ; } 
