Gradle project error - java.lang.ClassNotFoundException: org.springframework.boot.SpringApplication

Question

This is my main application code:

package u.d.dip.rs.app;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;

@EnableWebSecurity
@SpringBootApplication
@ComponentScan(basePackages = "u.d.dip")
@EnableAutoConfiguration
public class DipApplication {
    public static void main(String[] args) {
        SpringApplication.run(DipApplication.class, args);
    }
}

I'm using gradle to build the project. Even though SpringApplication file is properly imported I'm getting the following error:

Caused by: java.lang.ClassNotFoundException: org.springframework.boot.SpringApplication
    at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
    at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
    ... 6 more

Process finished with exit code 1

I'm getting following gradle message when I hover over SpringApplication

[Gradle: org.springframework.boot:spring-boot:1.5.1.RELEASE] org.springframework.boot public class SpringApplication extends Object

Any help would be much appreciated. Thanks in advance!

I'm not sure if its a typo only here but your class name is DigApplication - Dig with a g and you try to run DipApplication - Dip with a p. Also, @EnableAutoConfiguration is not needed when you use @SpringBootApplication as it already contains it. — Tom
– Tom, Commented Mar 6, 2017 at 15:24
@Tom Thanks for pointing out the typo. I've edited the question. But that's not what is causing the error. — Anand MP
– Anand MP, Commented Mar 7, 2017 at 7:48
@JBNizet Gradle is important because I'm resolving all my dependencies through that. Since the kind of error that I'm getting is because of spring-boot related issue, which is available as an external library in my project. — Anand MP
– Anand MP, Commented Mar 7, 2017 at 8:36

Turbut Alin · Accepted Answer · 2017-05-07 16:46:37Z

4

If you are using IntelliJ Idea, the new version 2016.3.6 solved this issue.

answered May 7, 2017 at 16:46

Turbut Alin

2,6961 gold badge24 silver badges32 bronze badges

Sign up to request clarification or add additional context in comments.

Comments

Anand MP · Accepted Answer · 2017-03-07 08:43:06Z

2

The error was because of an issue with gradle 3.4 I've changed my gradle distribution to 3.2 and everything is working fine now.

Please refer this for more information: https://github.com/gradle/gradle/issues/1335

Hope this solves your problem.

answered Mar 7, 2017 at 8:43

Anand MP

1211 gold badge3 silver badges14 bronze badges

Comments

趁现在赶快回家 · Accepted Answer · 2017-03-19 09:06:04Z

1

I fix this error by change gradle3.4 to 3.2

answered Mar 19, 2017 at 9:06

趁现在赶快回家

312 bronze badges

Comments

frank · Accepted Answer · 2020-09-23 02:01:59Z

1

i encountered this problem too, just with another story.

i am using spring boot 2.2.5 and gradle 5.1.2.

run gradle build -x test, it will tell you what error it is.

in my case, it told me that error: package org.jasig.cas.client.authentication does not exist, but this package exists in fact.

then i remembered that i added a dependency runtimeOnly 'org.apereo.cas:cas-server-support-validation:5.3.15.1'

after comment this dependency, my project can start success.

answered Sep 23, 2020 at 2:01

frank

1,21121 silver badges51 bronze badges

Comments

Ram Pratap · Accepted Answer · 2022-07-16 09:44:18Z

0

I understand this is an old thread, but still adding an answer.

Spring Boot will add two jars under build\libs\ (once we execute ./gradlew clean build or equivalent) *.jar(this will be jar with all dependencies) and *-plain.jar(will not have any dependencies). Now *-plain.jar is getting picked up and executed and causing No manifest and Exception in thread "main" java.lang.NoClassDefFoundError: org/springframework/boot/SpringApplication (once we fix no manifest by providing manifest under jar {}).

We need to run *.jar using java -jar command. If we want to stop generating *-plain.jar , we have to simply add following in our build.gradle :

jar {
enabled = false
}

answered Jul 16, 2022 at 9:44

Ram Pratap

5404 silver badges10 bronze badges

Collectives™ on Stack Overflow

Gradle project error - java.lang.ClassNotFoundException: org.springframework.boot.SpringApplication

5 Answers 5

Comments

Comments

Comments

Comments

Comments

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

5 Answers 5

Comments

Comments

Comments

Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Linked

Related