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fix error java.lang.NoSuchMethodError: 'int io.jsonwebtoken.SignatureAlgorithm.getMinKeyLength()'

I develop under MyEclipse a Jersey Java REST API which runs under Tomcat 9.
This API uses JWT tokens and I use io.jsonwebtoken to manage what I need to make it work.
Everything is fine except when my API calls a function which generates this error:
java.lang.NoSuchMethodError: 'int io.jsonwebtoken.SignatureAlgorithm.getMinKeyLength()'
at io.jsonwebtoken.security.Keys.hmacShaKeyFor(Keys.java:84)
at com.knowledgeplaces.metalmsapi.utils.JWTUtils.createJWT(JWTUtils.java:18)
Here is the code of JWTUtils:
package com.knowledgeplaces.metalmsapi.utils;
import io.jsonwebtoken.Jwts;
import io.jsonwebtoken.JwtException;
import io.jsonwebtoken.security.Keys;
import io.jsonwebtoken.security.WeakKeyException;
import java.security.Key;
import java.nio.charset.StandardCharsets;
import java.util.Calendar;
import java.util.Date;
import java.util.UUID;
public class JWTUtils {
public String createJWT(String issuer, Integer userId, String jwtSecretKey, Integer jwtExpirationMs) throws Exception {
Key key;
try {
key = Keys.hmacShaKeyFor(jwtSecretKey.getBytes(StandardCharsets.UTF_8));
} catch (WeakKeyException ex) {
throw new Exception("invalidKPLMSCustomerConfigMetaLmsApiKey");
}
And here is pom.xml:
<dependency>
<groupId>io.jsonwebtoken</groupId>
<artifactId>jjwt-api</artifactId>
<version>0.11.2</version>
</dependency>
<dependency>
<groupId>io.jsonwebtoken</groupId>
<artifactId>jjwt-impl</artifactId>
<version>0.11.2</version>
</dependency>
<dependency>
<groupId>io.jsonwebtoken</groupId>
<artifactId>jjwt-jackson</artifactId> <!-- or jjwt-gson if Gson is preferred -->
<version>0.11.2</version>
</dependency>
<dependency>
<groupId>io.jsonwebtoken</groupId>
<artifactId>jjwt</artifactId>
<version>0.9.1</version>
</dependency>
Any help appreciated.

I removed the last dependency and it is fixed now.
<dependency>
<groupId>io.jsonwebtoken</groupId>
<artifactId>jjwt</artifactId>
<version>0.9.1</version>
</dependency>

Junit fail following tutorial MongoDB, Springboot

I am following this tutorial:
https://www.baeldung.com/spring-boot-embedded-mongodb
Only dot 1,2,3
I need insert and check new registers in my mongoDB embebed.
this is my pom:
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter</artifactId>
<exclusions>
<exclusion>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-logging</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.data</groupId>
<artifactId>spring-data-mongodb</artifactId>
<version>2.1.1.RELEASE</version><!--$NO-MVN-MAN-VER$ -->
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-log4j2</artifactId>
</dependency>
<dependency>
<groupId>de.flapdoodle.embed</groupId>
<artifactId>de.flapdoodle.embed.mongo</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
It is my test.java:
import static org.assertj.core.api.Assertions.assertThat;
import java.util.List;
import org.junit.Test;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.autoconfigure.data.mongo.DataMongoTest;
import org.springframework.data.mongodb.core.MongoTemplate;
import com.batch.DesarrolloBatch.model.Documento;
import com.mongodb.BasicDBObjectBuilder;
import com.mongodb.DBObject;
#DataMongoTest
public class TestApplicationConfiguration {
#Test
public void test(#Autowired MongoTemplate mongoTemplate) {
// given
DBObject objectToSave = BasicDBObjectBuilder.start()
.add("_id", "999999999999")
.get();
// when
mongoTemplate.save(objectToSave, "collection");
List<Documento> list = mongoTemplate.findAll(Documento.class, "collection");
System.out.println("size " + list.size());
// then
assertThat(mongoTemplate.findAll(Documento.class, "collection")).extracting("_id")
.containsOnly("999999999999");
}
}
I am trying insert a new Documento with attribute _id value= 99999999
But this code failed, so, I am trying see the size my List for know if I insert success...
I get this error:
java.lang.Exception: Method test should have no parameters
at org.junit.runners.model.FrameworkMethod.validatePublicVoidNoArg(FrameworkMethod.java:76)
at org.junit.runners.ParentRunner.validatePublicVoidNoArgMethods(ParentRunner.java:155)
at org.junit.runners.BlockJUnit4ClassRunner.validateTestMethods(BlockJUnit4ClassRunner.java:208)
at org.junit.runners.BlockJUnit4ClassRunner.validateInstanceMethods(BlockJUnit4ClassRunner.java:188)
at org.junit.runners.BlockJUnit4ClassRunner.collectInitializationErrors(BlockJUnit4ClassRunner.java:128)
at org.junit.runners.ParentRunner.validate(ParentRunner.java:416)
at org.junit.runners.ParentRunner.<init>(ParentRunner.java:84)
at org.junit.runners.BlockJUnit4ClassRunner.<init>(BlockJUnit4ClassRunner.java:65)
at org.junit.internal.builders.JUnit4Builder.runnerForClass(JUnit4Builder.java:10)
at org.junit.runners.model.RunnerBuilder.safeRunnerForClass(RunnerBuilder.java:59)
at org.junit.internal.builders.AllDefaultPossibilitiesBuilder.runnerForClass(AllDefaultPossibilitiesBuilder.java:26)
at org.junit.runners.model.RunnerBuilder.safeRunnerForClass(RunnerBuilder.java:59)
at org.junit.internal.requests.ClassRequest.getRunner(ClassRequest.java:33)
at org.eclipse.jdt.internal.junit4.runner.JUnit4TestLoader.createUnfilteredTest(JUnit4TestLoader.java:87)
at org.eclipse.jdt.internal.junit4.runner.JUnit4TestLoader.createTest(JUnit4TestLoader.java:73)
at org.eclipse.jdt.internal.junit4.runner.JUnit4TestLoader.loadTests(JUnit4TestLoader.java:46)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:522)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:760)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:460)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:206)
I am new in Junit, mongodb ... I only want use mongoDB embebed and insert and check my bbdd .... thanks...

You forgot an annotation on the class level: #ExtendWith(SpringExtension.class)
#DataMongoTest
#ExtendWith(SpringExtension.class)
public class TestApplicationConfiguration {
#Test
public void test(#Autowired MongoTemplate mongoTemplate) {
// your test code
}
}
Please read the tutorial carefully.
Here is the link to the GitHub Repo where you can find the pom.xml and all the source code as well:
https://github.com/eugenp/tutorials/tree/master/persistence-modules/spring-boot-persistence-mongodb

Mocking an Apache Commons CSV CSVRecord

At some point my code needs to touch a CSVRecord and I can't figure out a way to create a mock version of it.
The class is final so it can't be mocked. The constructor is private so I can't create an instance of it. How does one approach testing code that uses the CSVRecord class?
Right now the only solution that works is parsing a test fixture to get an instance of the object. Is this my best approach?

You can use Powermock. More info: https://github.com/powermock/powermock/wiki/mockfinal
example:
import org.apache.commons.csv.CSVRecord;
import static org.junit.Assert.assertEquals;
import org.junit.Test;
import org.junit.runner.RunWith;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.when;
import org.powermock.core.classloader.annotations.PrepareForTest;
import org.powermock.modules.junit4.PowerMockRunner;
#RunWith(PowerMockRunner.class)
#PrepareForTest({CSVRecord.class}) // needed to mock final classes and static methods
public class YourTestClass {
#Test
public void testCheckValidNum_null() {
String columnName = "colName";
CSVRecord record = mock(CSVRecord.class);
String contentsOfCol = "hello";
String result;
when(record.get(columnName)).thenReturn(contentsOfCol);
result = record.get(columnName);
assertEquals(contentsOfCol, result);
}
}
Here are my maven includes (there are newer versions of libraries, this is just what I'm using):
<dependency>
<groupId>org.powermock</groupId>
<artifactId>powermock-module-junit4</artifactId>
<version>1.7.4</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.powermock</groupId>
<artifactId>powermock-api-mockito</artifactId>
<version>1.7.4</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.12</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.mockito</groupId>
<artifactId>mockito-all</artifactId>
<version>1.8.5</version>
<scope>test</scope>
</dependency>

Simplest spring-mvc testing setup fails to start

I am using Java based config with Maven, I've minimized the setup in order to isolate the error, yet I have no idea what is causing it except for the fact that removing the #EnableWebMvc annotation (which I obviously need) allows test to start and pass.
ExampleTest.java
package co.farel.server.services.test;
import static org.junit.Assert.assertEquals;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
import co.farel.server.services.test.config.WebConfig;
#RunWith(SpringJUnit4ClassRunner.class)
#ContextConfiguration(classes={WebConfig.class})
public class ExampleTest {
#Test
public void test() {
assertEquals(true, true);
}
}
WebConfig.java
package co.farel.server.services.test.config;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.config.annotation.EnableWebMvc;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;
#EnableWebMvc
#Configuration
public class WebConfig extends WebMvcConfigurerAdapter {
}
pom.xml
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.mikolaj.nalecz.testy</groupId>
<artifactId>junit-spring-hibernate</artifactId>
<version>0.0.1-SNAPSHOT</version>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.12</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>4.2.5.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>4.2.5.RELEASE</version>
</dependency>
</dependencies>
</project>
When I try to run the test, I get:
Caused by: org.springframework.beans.factory.BeanDefinitionStoreException: Failed to process import candidates for configuration class [co.farel.server.services.test.config.WebConfig]; nested exception is java.lang.IllegalStateException: Failed to introspect annotated methods on class org.springframework.web.servlet.config.annotation.WebMvcConfigurationSupport
The entire stacktrace http://pastebin.com/0DxXAS0P.

You are getting this error because you have invalid import statements in your project.
Most likely the invalid import is as following:
import org.springframework.context.annotation.Configuration;
Try adding the following dependencies to you POM:
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>4.2.5.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>4.2.5.RELEASE</version>
</dependency>

Please add annotation #WebAppConfiguration to your Test Class
Hope this helps
Thanks

The problem was probably caused by the fact that the container will provide Java servlet classes at runtime, however during the tests I need a jar to provide them.
After adding:
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>3.0.1</version>
<scope>provided</scope>
</dependency>
To pom.xml and:
#WebAppConfiguration
To my ExampleTest.java, everything works great.

Test Class unrecognized in Eclipse

I have this class, but eclipse does not recognize it as a test class, so I can not run it as a Junit test, I am using TestNG is a testing framework inspired from JUnit and NUnit but introducing some new functionalities that make it more powerful and easier to use,
import org.mockito.InjectMocks;
import org.mockito.Mock;
import org.mockito.MockitoAnnotations;
import org.testng.annotations.BeforeClass;
import org.testng.annotations.Test;
public class ApplicationServiceImplTest {
#Mock
ApplicationDao dao;
#InjectMocks
ApplicationMutatorServiceImpl applicationMutatorServiceImpl;
#BeforeClass
public void setUp(){
MockitoAnnotations.initMocks(this);
}
#Test
public void testSave() throws Exception {
Application application = new Application();
applicationMutatorServiceImpl.save(application);
System.out.println (application);
}
}
in my pom.xml
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>${junit.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.mockito</groupId>
<artifactId>mockito-all</artifactId>
<version>${mockito.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.testng</groupId>
<artifactId>testng</artifactId>
<version>${testng.version}</version>
<scope>test</scope>
</dependency>

Check if you have TestNG plugin installed.
http://singinginthesunlight.blogspot.in/2016/02/testng-for-dummies.html
Otherwise you can run it through Maven