Spring Boot - NoClassDefFoundError: ch/qos/logback/classic/Level

Question

I created a vanilla Spring Boot App (1.5.9.RELEASE) but when I Run As -> Spring Boot App (in Eclipse Oxygen) I get

SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder".
SLF4J: Defaulting to no-operation (NOP) logger implementation
SLF4J: See http://www.slf4j.org/codes.html#StaticLoggerBinder for further details.
Exception in thread "main" java.lang.NoClassDefFoundError: ch/qos/logback/classic/Level
    at org.springframework.boot.logging.logback.LogbackLoggingSystem.<clinit>(LogbackLoggingSystem.java:66)
    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.springframework.boot.logging.LoggingSystem.get(LoggingSystem.java:170)
    at org.springframework.boot.logging.LoggingSystem.get(LoggingSystem.java:160)
    at org.springframework.boot.logging.LoggingApplicationListener.onApplicationStartingEvent(LoggingApplicationListener.java:229)
    at org.springframework.boot.logging.LoggingApplicationListener.onApplicationEvent(LoggingApplicationListener.java:209)
    at org.springframework.context.event.SimpleApplicationEventMulticaster.doInvokeListener(SimpleApplicationEventMulticaster.java:172)
    at org.springframework.context.event.SimpleApplicationEventMulticaster.invokeListener(SimpleApplicationEventMulticaster.java:165)
    at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:139)
    at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:122)
    at org.springframework.boot.context.event.EventPublishingRunListener.starting(EventPublishingRunListener.java:69)
    at org.springframework.boot.SpringApplicationRunListeners.starting(SpringApplicationRunListeners.java:48)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:292)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1118)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1107)
    at demo.spring.boot.app.CourseApiApp.main(CourseApiApp.java:11)
Caused by: java.lang.ClassNotFoundException: ch.qos.logback.classic.Level
    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)
    ... 19 more

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>demo.spring.boot</groupId>
  <artifactId>boot-demo</artifactId>
  <version>0.0.1-SNAPSHOT</version>

  <parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>1.5.9.RELEASE</version>
  </parent>

  <dependencies>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-web</artifactId>
    </dependency>
  </dependencies>

  <properties>
    <java.version>1.8</java.version>
  </properties>

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

App

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

@SpringBootApplication
public class CourseApiApp {

    public static void main(String[] args) 
    {
        SpringApplication.run(CourseApiApp.class, args);
    }
}

Remark

I also tried mvn clean package -> java -jar target/boot-demo.jar which gives me

Failed to instantiate SLF4J LoggerFactory
Reported exception:
java.lang.NoClassDefFoundError: ch/qos/logback/classic/LoggerContext
    at org.slf4j.impl.StaticLoggerBinder.<init>(StaticLoggerBinder.java:59)
    at org.slf4j.impl.StaticLoggerBinder.<clinit>(StaticLoggerBinder.java:50)
    at org.slf4j.LoggerFactory.bind(LoggerFactory.java:150)
    at org.slf4j.LoggerFactory.performInitialization(LoggerFactory.java:124)
    at org.slf4j.LoggerFactory.getILoggerFactory(LoggerFactory.java:412)
    at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:357)
    at org.apache.commons.logging.impl.SLF4JLogFactory.getInstance(SLF4JLogFactory.java:155)
    at org.apache.commons.logging.impl.SLF4JLogFactory.getInstance(SLF4JLogFactory.java:132)
    at org.apache.commons.logging.LogFactory.getLog(LogFactory.java:273)
    at org.springframework.boot.SpringApplication.<clinit>(SpringApplication.java:179)
    at demo.spring.boot.app.CourseApiApp.main(CourseApiApp.java:11)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:497)
    at org.springframework.boot.loader.MainMethodRunner.run(MainMethodRunner.java:48)
    at org.springframework.boot.loader.Launcher.launch(Launcher.java:87)
    at org.springframework.boot.loader.Launcher.launch(Launcher.java:50)
    at org.springframework.boot.loader.JarLauncher.main(JarLauncher.java:51)
Caused by: java.lang.ClassNotFoundException: ch.qos.logback.classic.LoggerContext
    at java.net.URLClassLoader$1.run(URLClassLoader.java:370)
    at java.net.URLClassLoader$1.run(URLClassLoader.java:362)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(URLClassLoader.java:361)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
    at org.springframework.boot.loader.LaunchedURLClassLoader.loadClass(LaunchedURLClassLoader.java:94)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
    ... 19 more
Caused by: java.util.zip.ZipException: invalid stored block lengths
    at java.util.zip.InflaterInputStream.read(InflaterInputStream.java:164)
    at org.springframework.boot.loader.jar.ZipInflaterInputStream.read(ZipInflaterInputStream.java:52)
    at sun.misc.Resource.getBytes(Resource.java:124)
    at java.net.URLClassLoader.defineClass(URLClassLoader.java:462)
    at java.net.URLClassLoader.access$100(URLClassLoader.java:73)
    at java.net.URLClassLoader$1.run(URLClassLoader.java:368)
    ... 25 more
Exception in thread "main" java.lang.reflect.InvocationTargetException
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:497)
    at org.springframework.boot.loader.MainMethodRunner.run(MainMethodRunner.java:48)
    at org.springframework.boot.loader.Launcher.launch(Launcher.java:87)
    at org.springframework.boot.loader.Launcher.launch(Launcher.java:50)
    at org.springframework.boot.loader.JarLauncher.main(JarLauncher.java:51)
Caused by: java.lang.NoClassDefFoundError: ch/qos/logback/classic/LoggerContext
    at org.slf4j.impl.StaticLoggerBinder.<init>(StaticLoggerBinder.java:59)
    at org.slf4j.impl.StaticLoggerBinder.<clinit>(StaticLoggerBinder.java:50)
    at org.slf4j.LoggerFactory.bind(LoggerFactory.java:150)
    at org.slf4j.LoggerFactory.performInitialization(LoggerFactory.java:124)
    at org.slf4j.LoggerFactory.getILoggerFactory(LoggerFactory.java:412)
    at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:357)
    at org.apache.commons.logging.impl.SLF4JLogFactory.getInstance(SLF4JLogFactory.java:155)
    at org.apache.commons.logging.impl.SLF4JLogFactory.getInstance(SLF4JLogFactory.java:132)
    at org.apache.commons.logging.LogFactory.getLog(LogFactory.java:273)
    at org.springframework.boot.SpringApplication.<clinit>(SpringApplication.java:179)
    at demo.spring.boot.app.CourseApiApp.main(CourseApiApp.java:11)
    ... 8 more
Caused by: java.lang.ClassNotFoundException: ch.qos.logback.classic.LoggerContext
    at java.net.URLClassLoader$1.run(URLClassLoader.java:370)
    at java.net.URLClassLoader$1.run(URLClassLoader.java:362)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(URLClassLoader.java:361)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
    at org.springframework.boot.loader.LaunchedURLClassLoader.loadClass(LaunchedURLClassLoader.java:94)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
    ... 19 more
Caused by: java.util.zip.ZipException: invalid stored block lengths
    at java.util.zip.InflaterInputStream.read(InflaterInputStream.java:164)
    at org.springframework.boot.loader.jar.ZipInflaterInputStream.read(ZipInflaterInputStream.java:52)
    at sun.misc.Resource.getBytes(Resource.java:124)
    at java.net.URLClassLoader.defineClass(URLClassLoader.java:462)
    at java.net.URLClassLoader.access$100(URLClassLoader.java:73)
    at java.net.URLClassLoader$1.run(URLClassLoader.java:368)
    ... 25 more

I think you have 2 problem : first it seems you have a ZipException, it's thrown when Spring is trying to read a jar file. Then you don't have any `slf4` implementation in your classpath, you can add `logback` so the first exception will be successfully logged — Olivier Boissé, Dec 19 '17 at 20:58

score 12 · Accepted Answer · answered Dec 19 '17 at 20:54

12

Extending Mark Bramnik answer, It does look like you don't have logback, which is pretty weird because spring-boot-starter-web have a dependency on spring-boot-starter-logging. Just try to add spring-boot-starter-logging to your POM file

answered Dec 19 '17 at 20:54

Guy Smorodinsky

902
7
16

1

error still occurs after adding `spring-boot-starter-logging` – tenticon Dec 19 '17 at 20:57
2

I think the original problem is a `java.util.zip.ZipException: invalid stored block lengths`. Do you have a broken jar file in you classpath ? – Olivier Boissé Dec 19 '17 at 20:59
to find that out I probably have to wipe out my .m2? – tenticon Dec 19 '17 at 21:00
4

yes otherwise you can clean maven repo with this command `mvn dependency:purge-local-repository` – Olivier Boissé Dec 19 '17 at 21:09
5

wiping out just the 'ch' folder in .m2 did it for me. Thanks – Saurabh Tiwari Jul 01 '18 at 10:32
thanks, just add this in a POM and it works. thanks, Guy. ` org.springframework.boot spring-boot-starter-logging ` – Athar Aug 10 '20 at 14:04

score 4 · Answer 2 · edited Mar 01 '18 at 22:05

4

It looks like you're trying to use a logback logging implementation but don't have a logback jar in the classpath:

Please try adding something like this (depending on Spring Boot version there can be another actual version of logback dependency)

<dependency>
    <groupId>ch.qos.logback</groupId>
    <artifactId>logback-classic</artifactId>
    <version>1.1.11</version>
</dependency>

Then you'll probably want to configure loggers, appenders and so forth. For more information about logging in spring boot read a chapter from official Spring Boot documentation.

edited Mar 01 '18 at 22:05

halfer

19,824
17
99
186

answered Dec 19 '17 at 20:42

Mark Bramnik

39,963
4
57
97

2

`logback-classic` already appears in maven dependencies. A look into the dependency hierarchy shows that `logback-classic` and `logback-core` are imported via the `spring-boot-starter-web` dependency (1.5.9.RELEASE)... weird stuff... – tenticon Dec 19 '17 at 20:59

score 2 · Answer 3 · answered Nov 06 '19 at 19:52

2

This worked for me, though not very intelligent: Deleted the ch folder from within .m2 folder, and did a Run > 'Maven install' from Eclipse.

answered Nov 06 '19 at 19:52

Sobin George

76
6

score 1 · Answer 4 · answered Dec 19 '17 at 21:07

1

Apparently I had a broken jar in the classpath, after removing everything from .m2 and updating it worked.

answered Dec 19 '17 at 21:07

tenticon

2,639
4
32
76

How do you know its a broken JAR ? – Balaji Boggaram Ramanarayan Oct 05 '18 at 17:03
Sometimes maven spews out a (one line) error message warning of zero size jars. I guess sometimes it might be corruption: https://github.com/spring-guides/gs-rest-service/issues/51 ? – rogerdpack Feb 01 '22 at 16:29

score 1 · Answer 5 · edited Mar 01 '21 at 05:34

Spring boot application is expecting logback classic dependency.Since its unable to find the logback-classic jar in classpath its throwing an error Caused by: java.lang.NoClassDefFoundError: ch/qos/logback/classic/turbo/TurboFilter.

After adding the below dependency application started without any issues.

<dependency>
    <groupId>ch.qos.logback</groupId>
    <artifactId>logback-classic</artifactId>
    <version>1.1.11</version>
</dependency>

score 0 · Answer 6 · answered Mar 10 '18 at 20:37

0

Removing everything from maven repo and updating project in eclipse worked for me.

answered Mar 10 '18 at 20:37

nslangde

11

AviX · Answer 7 · 2020-02-16T15:56:55.147

0

    <dependency>
        <groupId>ch.qos.logback</groupId>
        <artifactId>logback-core</artifactId>
        <!-- <version>${logback.version}</version> -->
    </dependency>

Adding this logback explicitly, solved the issue in my case.

edited Feb 16 '20 at 15:56

answered Aug 05 '19 at 13:24

AviX

53
9

score 0 · Answer 8 · answered Feb 11 '20 at 11:13

0

Deleting ch folder in .m2 directory and update maven project in eclipse project helps me in fixing this issue.

answered Feb 11 '20 at 11:13

arjun ganta

11
1

what is the ch folder? Did you mean repository folder? – rogerdpack Feb 01 '22 at 16:28

rogerdpack · Answer 9 · 2022-02-01T16:27:56.900

For us java.lang.ClassNotFoundException: ch.qos.logback.classic.joran.JoranConfigurator meant "I had excluded spring-boot-starter-logging but needed to add spring-boot-starter-log4j2" or something like that, apparently.

working pom:

<build>
<dependencies>
    <dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-log4j2</artifactId></dependency>

  <dependency>
     ...something internal
         <exclusions>
        <exclusion><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-logging</artifactId></exclusion>
      </exclusions>

According to https://docs.spring.io/spring-boot/docs/2.0.x/reference/html/howto-logging.html if you want to use log4j instead of logback you're supposed to "exclude" spring-boot-starter-logging so I guess the pattern of having to reject it from every dependency apps isn't too far off. Kind of weird though...

So maybe what happened was if you "just exclude" Maybe they were still bringing in "just logback" (without joran) as a separate dependency, which confused spring boot?

I have resolved the issue already but thanks. For me it was about building all the dependent project and cleaning the workspace. — Fay007, Feb 02 '22 at 08:53

Spring Boot - NoClassDefFoundError: ch/qos/logback/classic/Level

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