Why does Mockito show “mockStatic(Class<T>) is undefined” even after adding the correct dependency?

General Discussions
1

I’m trying to mock a static method using Mockito, but I keep getting the error: mockStatic(Class<FacesContext>) is undefined for the type TestMainPage.

I’ve already added the required dependencies for JUnit and Mockito in my Maven pom.xml, including:

<dependency>
  <groupId>org.mockito</groupId>
  <artifactId>mockito-core</artifactId>
  <version>5.14.2</version>
  <scope>test</scope>
</dependency>

However, Eclipse still reports the method as undefined in my test class. Could this be related to imports, Maven setup, or something else I’m missing?

2

The mockStatic() method isn’t part of mockito-core. You need to include the mockito-inline dependency. Add this to your pom.xml:

<dependency>
  <groupId>org.mockito</groupId>
  <artifactId>mockito-inline</artifactId>
  <version>5.14.2</version>
  <scope>test</scope>
</dependency>

After that, import it using import static org.mockito.Mockito.*; , Eclipse will then recognize mockStatic().

3

This happens because static mocking is not included in mockito-core; it’s part of the inline mocking extension.

To fix it:

  1. Add mockito-inline instead of or alongside mockito-core.

  2. Ensure your imports use org.mockito.Mockito.*.

Use JUnit 5 or JUnit 4.13+, older JUnit versions may conflict.

Once added, rebuild Maven (mvn clean test) and Eclipse will resolve mockStatic() correctly.

4

mockStatic() is available only when using the inline mock maker, which comes from the mockito-inline artifact.

The core version alone doesn’t include bytecode manipulation required for static mocking.

Add:

<dependency>
  <groupId>org.mockito</groupId>
  <artifactId>mockito-inline</artifactId>
  <version>5.14.2</version>
</dependency>

Then, use:

try (MockedStatic<FacesContext> context = Mockito.mockStatic(FacesContext.class)) {
    context.when(FacesContext::getCurrentInstance).thenReturn(mockInstance);
}

This approach works from Mockito 3.4.0 onward. This should solve your issue @Rashmihasija