import java.lang.annotation.Documented; import java.lang.annotation.ElementType; import java.lang.annotation.Retention; import java.lang.annotation.RetentionPolicy; import java.lang.annotation.Target; @Documented @Retention(RetentionPolicy.CLASS) @Target({ElementType.PARAMETER, ElementType.TYPE_USE}) @interface Anno { String value() default ""; } class Test { void foo(@Anno String s) { <selection>if (s == null) {}</selection> } }