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1   package com.puppycrawl.tools.checkstyle.grammars.java8;
2   
3   import static java.lang.annotation.ElementType.TYPE_USE;
4   
5   import java.lang.annotation.Retention;
6   import java.lang.annotation.RetentionPolicy;
7   import java.lang.annotation.Target;
8   
9   
10  public final class InputAnnotationsOnArray {
11  
12      private InputAnnotationsOnArray() {
13      }
14  
15      public static <T> T[] checkNotNullContents(T @Nullable [] array) {
16          if (array == null) {
17              throw new NullPointerException();
18          }
19  
20          return array;
21      }
22  
23      public static <T> T[][] checkNotNullContents2(T @Nullable [] @Nullable [] array) {
24          if (array == null) {
25              throw new NullPointerException();
26          }
27  
28          return array;
29      }
30  }
31  
32  @Retention(RetentionPolicy.CLASS)
33  @Target({ TYPE_USE })
34  @interface Nullable {
35  }