Question

I have a member in my class:

Class Abc
{
...
    @Autowired
    Set<TestClass> testClasses;
...
}

How can I inject it using Spring?

The xml I am using is:

<bean id="testClasses" class="java.util.HashSet"/>

I am injecting an empty bean because I want it to be an empty set of TestClass types.

But it’s giving me the following error:

No matching bean of type [TestClass] found for dependency [collection
of TestClass].

Am I doing anything wrong here?

Answer 1

@Resource(name="testClasses")
Set<TestClass> testClasses;

or

@Autowired
@Qualifier("testClasses")
Set<TestClass> testClasses;

Adding qualifier solves the problem as there might be multiple Set<TestClass> types available.