Lombok @Log4j2 annotation doesn't work with latest version of log4j (v2.15.0)-CodePudding

I upgraded the log4j dependency to the latest 2.15.0 version and now my Spring Boot application throws an error on start up

Exception in thread "main" java.lang.NoSuchFieldError: EMPTY_BYTE_ARRAY
    at org.apache.logging.log4j.core.config.ConfigurationSource.<clinit>(ConfigurationSource.java:56)
    at org.apache.logging.log4j.core.config.NullConfiguration.<init>(NullConfiguration.java:32)
    at org.apache.logging.log4j.core.LoggerContext.<clinit>(LoggerContext.java:85)
    at org.apache.logging.log4j.core.selector.ClassLoaderContextSelector.createContext(ClassLoaderContextSelector.java:254)
    at org.apache.logging.log4j.core.selector.ClassLoaderContextSelector.locateContext(ClassLoaderContextSelector.java:218)
    at org.apache.logging.log4j.core.selector.ClassLoaderContextSelector.getContext(ClassLoaderContextSelector.java:136)
    at org.apache.logging.log4j.core.selector.ClassLoaderContextSelector.getContext(ClassLoaderContextSelector.java:123)
    at org.apache.logging.log4j.core.selector.ClassLoaderContextSelector.getContext(ClassLoaderContextSelector.java:117)
    at org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext(Log4jContextFactory.java:150)
    at org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext(Log4jContextFactory.java:47)
    at org.apache.logging.log4j.LogManager.getContext(LogManager.java:194)
    at org.apache.logging.log4j.LogManager.getLogger(LogManager.java:581)
    at foo.bar.org.MyApp.<clinit>(MyApp.java:13)

Here is my main class

@Log4j2
@SpringBootApplication(exclude={DataSourceAutoConfiguration.class})
public class MyApp {

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

CodePudding user response：

In case you have the following in your pom.xml:

<dependency>
    <groupId>org.apache.logging.log4j</groupId>
    <artifactId>log4j-api</artifactId>
    <version>2.15.0</version>
</dependency>
<dependency>
    <groupId>org.apache.logging.log4j</groupId>
    <artifactId>log4j-core</artifactId>
    <version>2.15.0</version>
</dependency>

make sure that both have the same version. I forgot it for one (left the old version) and saw the same error.

CodePudding user response：

This should not be a Lombok issue. There should be a problem with your upgrade method.

The right way to upgrade Log4j version:

For Maven, set the log4j2.version property:

<properties>
    <log4j2.version>2.15.0</log4j2.version>
</properties>

For gradle:

ext['log4j2.version'] = '2.15.0'

Works for me.

Detail: Log4J2 Vulnerability and Spring Boot

More detail: Why you need to upgrade log4j version