Testing whether or not a Lookup object has access to members
Kasper Nielsen
kasperni at gmail.com
Mon Oct 22 20:17:27 UTC 2018
Hi,
Are there any elegant way to test if a Lookup object has access to a member
(field, constructor, method). Right now I'm using the following code
public static boolean hasAccess(MethodHandles.Lookup lookup, Member member)
{
if (member instanceof Constructor) {
try {
lookup.unreflectConstructor((Constructor<?>) member);
} catch (IllegalAccessException e) {
return false;
}
} else if (member instanceof Method) {
try {
lookup.unreflect((Method) member);
} catch (IllegalAccessException e) {
return false;
}
} else if (member instanceof Field) {
try {
lookup.unreflectVarHandle((Field) member);
} catch (IllegalAccessException e) {
return false;
}
}
return true;
}
Cheers
Kasper
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