blob: a479ffd060458b45ee167513b814761c9c8a1772 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
|
import java.util.List;
<error descr="'@SafeVarargs' not applicable to type">@SafeVarargs</error>
public class SafeVarargsTests {
//fixed arity
<error descr="@SafeVarargs is not allowed on methods with fixed arity">@SafeVarargs</error>
public void testNonVarargs1(){}
<error descr="@SafeVarargs is not allowed on methods with fixed arity">@SafeVarargs</error>
public void testNonVarargs2(int <warning descr="Parameter 'i' is never used">i</warning>){}
<error descr="@SafeVarargs is not allowed on methods with fixed arity">@SafeVarargs</error>
public <T> void testNonVarargs3(T <warning descr="Parameter 't' is never used">t</warning>){}
//non static/non final
<error descr="@SafeVarargs is not allowed on non-final instance methods">@SafeVarargs</error>
public void testNonVarargs4(int... <warning descr="Parameter 'i' is never used">i</warning>){}
//reassigned
@SafeVarargs
public final <T> void testT(T[] tt, T... t) {
<warning descr="@SafeVarargs do not suppress potentially unsafe operations">t</warning> = tt;
System.out.println(t[0]);
}
//incorrect types
@SafeVarargs
public final void testString(<warning descr="@SafeVarargs is not applicable for reifiable types">String...</warning> <warning descr="Parameter 'str' is never used">str</warning>){
}
@SafeVarargs
public final void testStringArray(<warning descr="@SafeVarargs is not applicable for reifiable types">String[]...</warning> <warning descr="Parameter 'str' is never used">str</warning>){
}
@SafeVarargs
public static void testUnbound(<warning descr="@SafeVarargs is not applicable for reifiable types">List<?>...</warning> <warning descr="Parameter 't' is never used">t</warning>){}
//correct usages
@SafeVarargs
public static <T> void foo(T... <warning descr="Parameter 't' is never used">t</warning>){}
@SafeVarargs
public static <T> void foo1(List<T>... <warning descr="Parameter 't' is never used">t</warning>){}
@SafeVarargs
public static <T> void foo2(List<? extends T>... <warning descr="Parameter 't' is never used">t</warning>){}
}
abstract class AClass {
@SafeVarargs
<T> AClass(T... d){
System.out.println(d);
}
}
class ABClass extends AClass {
@SafeVarargs
<T> ABClass(T... d){
super(d);
}
}
|
