unit testing - How to fix this error: java.lang.NoSuchMethodError: 'java.lang.AutoCloseable org.mockito.MockitoAnnotations.openMocks(java.lang.Object)'

Question

So I am getting this error in my Spring boot Gradle project:

'java.lang.AutoCloseable org.mockito.MockitoAnnotations.openMocks(java.lang.Object)'
    java.lang.NoSuchMethodError: 'java.lang.AutoCloseable org.mockito.MockitoAnnotations.openMocks(java.lang.Object)'

And I cannot seem to fix it. I have searched for the answer but the only one I get is removing mockito-all from your dependencies, but I do not have that in my gradle.build file in the first place.

My build.gradle file:

plugins {
    id 'org.springframework.boot' version '2.4.2'
    id 'io.spring.dependency-management' version '1.0.11.RELEASE'
    id 'java'
    id "org.sonarqube" version "3.0"
    id 'jacoco'
}

group = 'com.example'
version = '0.0.1-SNAPSHOT'
sourceCompatibility = '15'

configurations {
    compileOnly {
        extendsFrom annotationProcessor
    }
}

repositories {
    mavenCentral()
}


dependencies {
    compile 'org.apache.httpcomponents:httpcore:4.4.1'
    compile 'org.apache.httpcomponents:httpclient:4.5'
    implementation('io.jsonwebtoken:jjwt:0.2')
    implementation 'org.springframework.boot:spring-boot-starter-mail'
    implementation 'org.springframework.boot:spring-boot-starter-security'
    implementation 'org.springframework.boot:spring-boot-starter-data-jpa'
    implementation 'org.springframework.boot:spring-boot-starter-web'
    compile 'junit:junit:4.12'
    implementation 'org.modelmapper:modelmapper:2.4.1'
    compileOnly 'org.projectlombok:lombok'
    runtimeOnly 'mysql:mysql-connector-java'
    annotationProcessor 'org.projectlombok:lombok'
    testImplementation 'org.springframework.boot:spring-boot-starter-test'
    implementation 'org.eclipse.jgit:org.eclipse.jgit:5.4.2.201908231537-r'
    /**
     * JUnit jupiter with mockito.
     */
    testCompile group: 'org.mockito', name: 'mockito-junit-jupiter', version: '2.19.0'

    testCompile group: 'org.mockito', name: 'mockito-core', version: '2.19.0'
    testCompile group: 'org.springframework.security', name: 'spring-security-test', version: '5.1.6.RELEASE'
}

sonarqube{
    properties{
        property 'sonarjava.source', '1.8'
        property 'sonar.java.coveragePlugin', 'jacoco'
        property 'sonar.jacoco.reportPaths', 'build/reports/jacoco/test/jacocoTestReport.xml'
    }
}
test {
    useJUnitPlatform()
}

I can't seem to find a solution so I came to here, where some code god maybe can help me fixing my problem.

The file where I get this error on is a test class:

The test class:

package com.example.demo.Service;

import com.example.demo.DTO.PartyLeaderDto;
import com.example.demo.Model.PartyLeader;
import com.example.demo.Repository.PartyLeaderRepository;
import org.junit.Assert;
import org.junit.Rule;
import org.junit.jupiter.api.Test;
import org.mockito.InjectMocks;
import org.mockito.Mock;
import static org.mockito.Mockito.verify;
import org.mockito.junit.MockitoJUnit;
import org.mockito.junit.MockitoRule;
import org.modelmapper.ModelMapper;
import org.springframework.boot.test.autoconfigure.web.servlet.AutoConfigureMockMvc;
import org.springframework.boot.test.context.SpringBootTest;

import java.util.Optional;

import static org.mockito.Mockito.when;
import static org.mockito.ArgumentMatchers.argThat;

@SpringBootTest
@AutoConfigureMockMvc
public class PartyLeaderServiceMockTest {
    @Rule
    public MockitoRule initRule = MockitoJUnit.rule();

    @Mock
    private PartyLeaderRepository partyLeaderRepository;

    @Mock
    private ModelMapper modelMapper;

    @InjectMocks
    private PartyLeaderService partyLeaderService; // this is like calling new PartyLeaderService(partyLeaderRepository, modelMapper);


    @Test
    void whenSavePartyLeader_thenCorrectPartyLeaderSaved() {
        // given
        var input = PartyLeaderDto.builder()
                .name("Josse")
                .apperance("Link of image")
                .build();

        // when
        partyLeaderService.savePartyLeader(input);


        // then
        verify(partyLeaderRepository).save(argThat(entity ->
                entity.getName().equals("Josse")
                        && entity.getApperance().equals("Link of image")));
    }


    @Test
    void whenGetPartyLeader_ShouldReturnCorrectLeaderData() {
        // given
        var partyLeaderEntity = PartyLeader.builder()
                .name("Josse")
                .apperance("Link of image")
                .build();
        var partyLeaderDto = PartyLeaderDto.builder()
                .name("Josse")
                .apperance("Link of image")
                .build();
        when(partyLeaderRepository.findById(3)).thenReturn(Optional.of(partyLeaderEntity));
        when(modelMapper.map(partyLeaderEntity, PartyLeaderDto.class)).thenReturn(partyLeaderDto);

        // when
        var result = partyLeaderService.getPartyLeader(3);

        // then
        Assert.assertEquals(result, partyLeaderDto);
    }
}

I get the same error on both of my tests.

Can anyone help me? Thanks in advance!

Answer 1

Issue was due to the jar conflicts

We need to exclude

<dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-test</artifactId>
        <scope>test</scope>
        <exclusions>
            <exclusion>
                <groupId>org.junit</groupId>
                <artifactId>junit</artifactId>
            </exclusion>
            <exclusion>
                <groupId>org.mockito</groupId>
                <artifactId>mockito-core</artifactId>
            </exclusion>
            <exclusion>
                <groupId>org.mockito</groupId>
                <artifactId>mockito-all</artifactId>
            </exclusion>
        </exclusions>
    </dependency>

And include

<dependency>
        <groupId>org.mockito</groupId>
        <artifactId>mockito-core</artifactId>
        <version>3.11.2</version>
    </dependency>