Develop your first web application with Spring Boot Magic

Home Page: http://www.springbootutorial.com

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spring-boot spring-mvc spring-security spring-framework java

springbootwebapplicationstepbystep's Introduction

Your First Web Application with Spring Boot

Develop your first web application with Spring Boot in more than 25 steps

Installing Eclipse, Maven and Java
Course Overview
About in28Minutes

Installing Tools

Course Overview

Introduction

Developing your first Spring Boot Web Application is fun.

Spring Boot makes it easy to create stand-alone, production-grade Spring based Applications that you can “just run”. We take an opinionated view of the Spring platform and third-party libraries so you can get started with minimum fuss. Most Spring Boot applications need very little Spring configuration.

In this course, you will learn the basics developing a Basic Todo Management Application using Spring Boot with Login and Logout functionalities.

You will build the website step by step - in more than 25 steps. This course would be a perfect first step as an introduction to Java Web Application Development.

You will be using Spring (Dependency Management), Spring MVC, Spring Boot, Spring Security (Authentication and Authorization), BootStrap (Styling Pages), Maven (dependencies management), Eclipse (IDE) and Tomcat Embedded Web Server. We will help you set up each one of these.

You will learn about

Basics of Spring Boot
Basics of Autoconfiguration and Spring Boot Magic
DispatcherServlet
Basic Todo Management Application with Login/Logout
Model, Controllers, ViewResolver and Filters
Forms - DataBinding, Validation
Annotation based approach - @RequestParam, @ModelAttribute, @SessionAttributes etc
Bootstrap to style the page
Spring Security
Exception Handling

Step Wise Details

Step 01: Basic Spring Boot Web Application Setup
Step 02: First Spring MVC Controller, @ResponseBody, @Controller
Step 03: Demystifying some of the Spring Boot magic
Step 04: Redirect to Login JSP - LoginController, @ResponseBody and View Resolver
Step 05: Show userid and password on the welcome page - ModelMap and @RequestParam
Step 06: DispatcherServlet and Spring MVC Flow
Step 07: Your First HTML form
Step 08: Add hard-coded validation of userid and password
Step 09: Magic of Spring
Step 10: Create TodoController and list-todos view. Make TodoService a @Service and inject it.
Step 11: Architecture of Web Applications
Step 12: Session vs Model vs Request - @SessionAttributes
Step 13: Add new todo
Step 14: Display Todos in a table using JSTL Tags
Step 15: Bootstrap for Page Formatting using webjars
Step 16: Let's delete a Todo
Step 17: Format Add Todo Page and Adding Basic HTML5 form validation
Step 18: Introduce JSR 349 Validations using Hibernate Validator - First Command Bean.
Step 19: Updating a todo
Step 20: Let's add a Target Date for Todo - Use initBinder to Handle Date Fields
Step 21: JSP Fragments and Navigation Bar
Step 22: Preparing for Spring Security
Step 23: Initial Spring Security Setup
Step 24: Refactor and add Logout Functionality using Spring Security
Step 25: Exception Handling

We do NOT interact with a Database in this Beginner’s Course.
We will be building a traditional JSP based web application in this course.

Expectations

You should know Java. You should understand usage of Annotations.
You should understand the basics of Spring framework.
You are NOT expected to have any experience with Eclipse or Maven.
We will help you install Eclipse and get up and running with Maven.

Let's have some fun

What are we waiting for?
Let's have some fun building a web application Spring Boot in 25 Steps.
I had fun creating this course and hope you would too.
Thanks for your interest in Our Course
- I hope you’re as excited as I am!
- If you’re ready to learn more and sign up for the course,
- go ahead and hit that Enroll button,
- or take a test drive by using the Free Preview feature.
See you in the course!

Getting Started

About in28Minutes

At in28Minutes, we ask ourselves one question everyday

How do we create more amazing course experiences? We use 80-20 Rule. We discuss 20% things used 80% of time in depth.

We are creating amazing learning experiences for learning Spring Boot with AWS, Azure, GCP, Docker, Kubernetes and Full Stack. 300,000 Learners rely on our expertise. Find out more....

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springbootwebapplicationstepbystep's Issues

Step23 => Creating inMemory User works different now

Hi there,

in Step23 you create an inMemory User via
auth.inMemoryAuthentication().withUser("in28Minutes").password("dummy") .roles("USER", "ADMIN");
However, this doesn't work anymore, an error is thrown when I try to log in with that user:

java.lang.IllegalArgumentException: There is no PasswordEncoder mapped for the id "null"

Read here for a solution (I personally chose Solution 1 there)
Please update Step23.md and, if possible, your video of Step 23.

Step 20 fmt error

Hi could you please help fix... I am following your video and getting an error like this on Step 20:

2018-10-21 22:41:12.496 ERROR 99305 --- [nio-8080-exec-1] o.a.c.c.C.[.[.[/].[dispatcherServlet]    : Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [The absolute uri: [http://www.springframework.org/tags/fmt] cannot be resolved in either web.xml or the jar files deployed with this application] with root cause

org.apache.jasper.JasperException: The absolute uri: [http://www.springframework.org/tags/fmt] cannot be resolved in either web.xml or the jar files deployed with this application
	at org.apache.jasper.compiler.DefaultErrorHandler.jspError(DefaultErrorHandler.java:55) ~[tomcat-embed-jasper-8.5.34.jar:8.5.34]
	at org.apache.jasper.compiler.ErrorDispatcher.dispatch(ErrorDispatcher.java:293) ~[tomcat-embed-jasper-8.5.34.jar:8.5.34]
	at org.apache.jasper.compiler.ErrorDispatcher.jspError(ErrorDispatcher.java:80) ~[tomcat-embed-jasper-8.5.34.jar:8.5.34]
	at org.apache.jasper.compiler.TagLibraryInfoImpl.generateTldResourcePath(TagLibraryInfoImpl.java:251) ~[tomcat-embed-jasper-8.5.34.jar:8.5.34]
	at org.apache.jasper.compiler.TagLibraryInfoImpl.<init>(TagLibraryInfoImpl.java:122) ~[tomcat-embed-jasper-8.5.34.jar:8.5.34]
	at org.apache.jasper.compiler.Parser.parseTaglibDirective(Parser.java:431) ~[tomcat-embed-jasper-8.5.34.jar:8.5.34]
	at org.apache.jasper.compiler.Parser.parseDirective(Parser.java:489) ~[tomcat-embed-jasper-8.5.34.jar:8.5.34]
	at org.apache.jasper.compiler.Parser.parseElements(Parser.java:1445) ~[tomcat-embed-jasper-8.5.34.jar:8.5.34]
	at org.apache.jasper.compiler.Parser.parse(Parser.java:144) ~[tomcat-embed-jasper-8.5.34.jar:8.5.34]
	at org.apache.jasper.compiler.ParserController.doParse(ParserController.java:244) ~[tomcat-embed-jasper-8.5.34.jar:8.5.34]
	at org.apache.jasper.compiler.ParserController.parse(ParserController.java:105) ~[tomcat-embed-jasper-8.5.34.jar:8.5.34]
	at org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:202) ~[tomcat-embed-jasper-8.5.34.jar:8.5.34]
	at org.apache.jasper.compiler.Compiler.compile(Compiler.java:373) ~[tomcat-embed-jasper-8.5.34.jar:8.5.34]
	at org.apache.jasper.compiler.Compiler.compile(Compiler.java:350) ~[tomcat-embed-jasper-8.5.34.jar:8.5.34]
	at org.apache.jasper.compiler.Compiler.compile(Compiler.java:334) ~[tomcat-embed-jasper-8.5.34.jar:8.5.34]
	at org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:595) ~[tomcat-embed-jasper-8.5.34.jar:8.5.34]
	at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:382) ~[tomcat-embed-jasper-8.5.34.jar:8.5.34]
	at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:386) ~[tomcat-embed-jasper-8.5.34.jar:8.5.34]
	at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:330) ~[tomcat-embed-jasper-8.5.34.jar:8.5.34]
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:742) ~[tomcat-embed-core-8.5.34.jar:8.5.34]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231) ~[tomcat-embed-core-8.5.34.jar:8.5.34]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-8.5.34.jar:8.5.34]
	at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) ~[tomcat-embed-websocket-8.5.34.jar:8.5.34]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-8.5.34.jar:8.5.34]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-8.5.34.jar:8.5.34]
	at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:728) ~[tomcat-embed-core-8.5.34.jar:8.5.34]
	at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:470) ~[tomcat-embed-core-8.5.34.jar:8.5.34]
	at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:395) ~[tomcat-embed-core-8.5.34.jar:8.5.34]
	at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:316) ~[tomcat-embed-core-8.5.34.jar:8.5.34]
	at org.springframework.web.servlet.view.InternalResourceView.renderMergedOutputModel(InternalResourceView.java:170) ~[spring-webmvc-5.0.9.RELEASE.jar:5.0.9.RELEASE]
	at org.springframework.web.servlet.view.AbstractView.render(AbstractView.java:315) ~[spring-webmvc-5.0.9.RELEASE.jar:5.0.9.RELEASE]
	at org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1325) ~[spring-webmvc-5.0.9.RELEASE.jar:5.0.9.RELEASE]
	at org.springframework.web.servlet.DispatcherServlet.processDispatchResult(DispatcherServlet.java:1069) ~[spring-webmvc-5.0.9.RELEASE.jar:5.0.9.RELEASE]
	at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1008) ~[spring-webmvc-5.0.9.RELEASE.jar:5.0.9.RELEASE]
	at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:925) ~[spring-webmvc-5.0.9.RELEASE.jar:5.0.9.RELEASE]
	at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:974) ~[spring-webmvc-5.0.9.RELEASE.jar:5.0.9.RELEASE]
	at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:866) ~[spring-webmvc-5.0.9.RELEASE.jar:5.0.9.RELEASE]
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:635) ~[tomcat-embed-core-8.5.34.jar:8.5.34]
	at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:851) ~[spring-webmvc-5.0.9.RELEASE.jar:5.0.9.RELEASE]
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:742) ~[tomcat-embed-core-8.5.34.jar:8.5.34]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231) ~[tomcat-embed-core-8.5.34.jar:8.5.34]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-8.5.34.jar:8.5.34]
	at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) ~[tomcat-embed-websocket-8.5.34.jar:8.5.34]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-8.5.34.jar:8.5.34]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-8.5.34.jar:8.5.34]
	at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:99) ~[spring-web-5.0.9.RELEASE.jar:5.0.9.RELEASE]
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-5.0.9.RELEASE.jar:5.0.9.RELEASE]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-8.5.34.jar:8.5.34]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-8.5.34.jar:8.5.34]
	at org.springframework.web.filter.HttpPutFormContentFilter.doFilterInternal(HttpPutFormContentFilter.java:109) ~[spring-web-5.0.9.RELEASE.jar:5.0.9.RELEASE]
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-5.0.9.RELEASE.jar:5.0.9.RELEASE]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-8.5.34.jar:8.5.34]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-8.5.34.jar:8.5.34]
	at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:93) ~[spring-web-5.0.9.RELEASE.jar:5.0.9.RELEASE]
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-5.0.9.RELEASE.jar:5.0.9.RELEASE]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-8.5.34.jar:8.5.34]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-8.5.34.jar:8.5.34]
	at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:200) ~[spring-web-5.0.9.RELEASE.jar:5.0.9.RELEASE]
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-5.0.9.RELEASE.jar:5.0.9.RELEASE]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-8.5.34.jar:8.5.34]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-8.5.34.jar:8.5.34]
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:198) ~[tomcat-embed-core-8.5.34.jar:8.5.34]
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96) ~[tomcat-embed-core-8.5.34.jar:8.5.34]
	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:493) ~[tomcat-embed-core-8.5.34.jar:8.5.34]
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140) ~[tomcat-embed-core-8.5.34.jar:8.5.34]
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:81) ~[tomcat-embed-core-8.5.34.jar:8.5.34]
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87) ~[tomcat-embed-core-8.5.34.jar:8.5.34]
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:342) ~[tomcat-embed-core-8.5.34.jar:8.5.34]
	at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:800) ~[tomcat-embed-core-8.5.34.jar:8.5.34]
	at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66) ~[tomcat-embed-core-8.5.34.jar:8.5.34]
	at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:806) ~[tomcat-embed-core-8.5.34.jar:8.5.34]
	at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1498) ~[tomcat-embed-core-8.5.34.jar:8.5.34]
	at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) ~[tomcat-embed-core-8.5.34.jar:8.5.34]
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128) ~[na:na]
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628) ~[na:na]
	at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) ~[tomcat-embed-core-8.5.34.jar:8.5.34]
	at java.base/java.lang.Thread.run(Thread.java:834) ~[na:na]

list-todos.jsp

<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/fmt" prefix="fmt"%>

<html>
<head>
<title>List of Todos</title>
<link href="webjars/bootstrap/4.1.3/css/bootstrap.min.css" rel="stylesheet">
</head>
<body>
	<div class="container">
		<h1>${name}'s todos</h1>
		<table class="table table-striped">
			<caption>Stay focused</caption>
			<thead>
				<tr>
					<th>Description</th>
					<th>Target date</th>
					<th>Done?</th>
					<th></th>
					<th>Delete</th>
				</tr>
			</thead>
			<tbody>
				<c:forEach items="${todos}" var="todo">
					<tr>
						<td>${todo.desc}</td>
						<td><fmt:formatDate value="${todo.targetDate}" pattern="dd/MM/yyyy"/></td>
						<td>${todo.done}</td>
						<td><a class="btn btn-success" href="/update?id=${todo.id}">Update</a>
						<td><a class="btn btn-warning" href="/delete?id=${todo.id}">Delete</a>
					</tr>
				</c:forEach>
				
			</tbody>
		</table>
		<div><a class="button" href="/add">Add a Todo</a></div>
		
		<script src="webjars/jquery/3.3.1-1/jquery.min.js"></script>
		<script src="webjars/bootstrap/4.1.3/js/bootstrap.min.js"></script>
	</div>
</body>
</html>

pom.xml

<?xml version="1.0" encoding="UTF-8"?>
<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.vinamelody.springboot</groupId>
	<artifactId>hello</artifactId>
	<version>0.0.1-SNAPSHOT</version>
	<packaging>jar</packaging>

	<name>demo</name>
	<description>Demo project for Spring Boot</description>

	<parent>
		<groupId>org.springframework.boot</groupId>
		<artifactId>spring-boot-starter-parent</artifactId>
		<version>2.0.5.RELEASE</version>
		<relativePath/> <!-- lookup parent from repository -->
	</parent>

	<properties>
		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
		<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
		<java.version>1.8</java.version>
	</properties>

	<dependencies>
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-web</artifactId>
		</dependency>
		<dependency>
			<groupId>javax.servlet</groupId>
			<artifactId>jstl</artifactId>
			<version>1.2</version>
		</dependency>
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-devtools</artifactId>
			<scope>runtime</scope>
		</dependency>
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-test</artifactId>
			<scope>test</scope>
		</dependency>
		<dependency>
            <groupId>org.apache.tomcat.embed</groupId>
            <artifactId>tomcat-embed-jasper</artifactId>
            <scope>provided</scope>
        </dependency>
        <dependency>
        	<groupId>org.webjars</groupId>
        	<artifactId>bootstrap</artifactId>
        	<version>4.1.3</version>
        </dependency>
        <dependency>
        	<groupId>org.webjars</groupId>
        	<artifactId>jquery</artifactId>
        	<version>3.3.1-1</version>
        </dependency>
	</dependencies>

	<build>
		<plugins>
			<plugin>
				<groupId>org.springframework.boot</groupId>
				<artifactId>spring-boot-maven-plugin</artifactId>
			</plugin>
		</plugins>
	</build>


</project>

File structure:

Step18 => commandName="todo" doesn't work

Hi there,

thank you for the great course.
However, I found a bug in it, because of an outdated parameter.
In Step 18 you write to use the attribute "commandName="todo" ", however this doesn't work anymore.
You now need to use modelAttribute="todo"
See here for more information.
Please update the .md-File of Step 18 and, if possible, the video on that part.
Thank you and thanks again for your great tutorial.

java.lang.IllegalStateException: Could not load TestContextBootstrapper [null]. Specify @BootstrapWith's 'value' attribute or make the default bootstrapper class available.

TestContextBootstrapper [null] while Build the Project. Where Shoud i mention this TestContextBootstrapper .?

T E S T S

10:47:26.699 [main] DEBUG org.springframework.test.context.junit4.SpringJUnit4ClassRunner - SpringJUnit4ClassRunner constructor called with [class com.in28minutes.springboot.web.SpringBootFirstWebApplicationTests]
10:47:26.705 [main] DEBUG org.springframework.test.context.BootstrapUtils - Instantiating CacheAwareContextLoaderDelegate from class [org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate]
10:47:26.712 [main] DEBUG org.springframework.test.context.BootstrapUtils - Instantiating BootstrapContext using constructor [public org.springframework.test.context.support.DefaultBootstrapContext(java.lang.Class,org.springframework.test.context.CacheAwareContextLoaderDelegate)]
Running com.in28minutes.springboot.web.SpringBootFirstWebApplicationTests
10:47:26.716 [main] DEBUG org.springframework.test.context.junit4.SpringJUnit4ClassRunner - SpringJUnit4ClassRunner constructor called with [class com.in28minutes.springboot.web.SpringBootFirstWebApplicationTests]
10:47:26.716 [main] DEBUG org.springframework.test.context.BootstrapUtils - Instantiating CacheAwareContextLoaderDelegate from class [org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate]
10:47:26.716 [main] DEBUG org.springframework.test.context.BootstrapUtils - Instantiating BootstrapContext using constructor [public org.springframework.test.context.support.DefaultBootstrapContext(java.lang.Class,org.springframework.test.context.CacheAwareContextLoaderDelegate)]
Tests run: 1, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 0.016 sec <<< FAILURE! - in com.in28minutes.springboot.web.SpringBootFirstWebApplicationTests
initializationError(com.in28minutes.springboot.web.SpringBootFirstWebApplicationTests) Time elapsed: 0.008 sec <<< ERROR!
java.lang.IllegalStateException: Could not load TestContextBootstrapper [null]. Specify @BootstrapWith's 'value' attribute or make the default bootstrapper class available.
at org.springframework.test.context.BootstrapUtils.resolveTestContextBootstrapper(BootstrapUtils.java:143)
at org.springframework.test.context.TestContextManager.(TestContextManager.java:105)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.createTestContextManager(SpringJUnit4ClassRunner.java:152)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.(SpringJUnit4ClassRunner.java:143)
at org.springframework.test.context.junit4.SpringRunner.(SpringRunner.java:49)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:422)
at org.junit.internal.builders.AnnotatedBuilder.buildRunner(AnnotatedBuilder.java:104)
at org.junit.internal.builders.AnnotatedBuilder.runnerForClass(AnnotatedBuilder.java:86)
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.apache.maven.surefire.junit4.JUnit4Provider.execute(JUnit4Provider.java:283)
at org.apache.maven.surefire.junit4.JUnit4Provider.executeWithRerun(JUnit4Provider.java:173)
at org.apache.maven.surefire.junit4.JUnit4Provider.executeTestSet(JUnit4Provider.java:153)
at org.apache.maven.surefire.junit4.JUnit4Provider.invoke(JUnit4Provider.java:128)
at org.apache.maven.surefire.booter.ForkedBooter.invokeProviderInSameClassLoader(ForkedBooter.java:203)
at org.apache.maven.surefire.booter.ForkedBooter.runSuitesInProcess(ForkedBooter.java:155)
at org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:103)
Caused by: java.lang.NoSuchMethodError: org.springframework.core.annotation.AnnotatedElementUtils.findAllMergedAnnotations(Ljava/lang/reflect/AnnotatedElement;Ljava/lang/Class;)Ljava/util/Set;
at org.springframework.test.context.BootstrapUtils.resolveExplicitTestContextBootstrapper(BootstrapUtils.java:150)
at org.springframework.test.context.BootstrapUtils.resolveTestContextBootstrapper(BootstrapUtils.java:126)
at org.springframework.test.context.TestContextManager.(TestContextManager.java:105)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.createTestContextManager(SpringJUnit4ClassRunner.java:152)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.(SpringJUnit4ClassRunner.java:143)
at org.springframework.test.context.junit4.SpringRunner.(SpringRunner.java:49)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:422)
at org.junit.internal.builders.AnnotatedBuilder.buildRunner(AnnotatedBuilder.java:104)
at org.junit.internal.builders.AnnotatedBuilder.runnerForClass(AnnotatedBuilder.java:86)
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.apache.maven.surefire.junit4.JUnit4Provider.execute(JUnit4Provider.java:283)
at org.apache.maven.surefire.junit4.JUnit4Provider.executeWithRerun(JUnit4Provider.java:173)
at org.apache.maven.surefire.junit4.JUnit4Provider.executeTestSet(JUnit4Provider.java:153)
at org.apache.maven.surefire.junit4.JUnit4Provider.invoke(JUnit4Provider.java:128)
at org.apache.maven.surefire.booter.ForkedBooter.invokeProviderInSameClassLoader(ForkedBooter.java:203)
at org.apache.maven.surefire.booter.ForkedBooter.runSuitesInProcess(ForkedBooter.java:155)
at org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:103)

Results :

Tests in error:
SpringBootFirstWebApplicationTests.initializationError » IllegalState Could no...

Tests run: 1, Failures: 0, Errors: 1, Skipped: 0

[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 25.221 s
[INFO] Finished at: 2018-10-22T10:47:26+05:30
[INFO] ------------------------------------------------------------------------

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