annotations Archives - Page 2 of 4

Injecting Mockito mocks into a Spring bean

I would like to inject a Mockito mock object into a Spring (3+) bean for the purposes of unit testing with JUnit. My ...

May 17, 2022
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Why does JPA have a @Transient annotation?

Java has the transientkeyword. Why does JPA have @Transient instead of simply using the already existing java keyword? 8 Answers 8

May 12, 2022
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How do I assert my exception message with JUnit Test annotation?

I have written a few JUnit tests with @Test annotation. If my test method throws a checked exception and if I want to ...

May 10, 2022
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What’s the difference between interface and @interface in java?

I haven’t touched Java since using JBuilder in the late 90’s while at University, so I’m a little out of touch – at ...

May 10, 2022
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@Nullable annotation usage

I saw some method in java declared as: void foo(@Nullable Object obj) { ... } What’s the meaning of @Nullable here? Does it ...

May 8, 2022
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Only using @JsonIgnore during serialization, but not deserialization

I have a user object that is sent to and from the server. When I send out the user object, I don’t want ...

May 8, 2022
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@Resource vs @Autowired

Which annotation, @Resource (jsr250) or @Autowired (Spring-specific) should I use in DI? I have successfully used both in the past, @Resource(name="blah") and @Autowired ...

May 7, 2022
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JsonMappingException: No suitable constructor found for type [simple type, class ]: can not instantiate from JSON object

I am getting the following error when trying to get a JSON request and process it: org.codehaus.jackson.map.JsonMappingException: No suitable constructor found for type ...

May 5, 2022
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Should we @Override an interface’s method implementation?

Should a method that implements an interface method be annotated with @Override? The javadoc of the Override annotation says: Indicates that a method ...

May 5, 2022
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Difference between @Before, @BeforeClass, @BeforeEach and @BeforeAll

What is the main difference between @Before and @BeforeClass and in JUnit 5 @BeforeEach and @BeforeAll @After and @AfterClass According to the JUnit ...

May 4, 2022
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