Trouble auto-configuring log4j 2 from YAML file

Question

This is my application code. When it is run, only the error string is logged. I can see the yaml file copied into the build/resources folder. I'm not able to diagnose why the auto-configuration isn't working even though I've followed the naming convention and placed the yaml file in the proper place.

public class App {
    private static final Logger logger = LogManager.getLogger();

    public static void main(String[] args) {
        logger.trace("Entering application.");
        logger.error("Some error");
        logger.trace("Exiting application.");
    }
}

My build.gradle looks like this.

plugins {
    id 'java'
    id 'application'
    id 'groovy'
}

repositories {
    jcenter()
}

dependencies {
    compile group: 'org.apache.logging.log4j', name: 'log4j-core', version: '2.13.1'
    compile group: 'org.apache.logging.log4j', name: 'log4j-api', version: '2.13.1'


    implementation 'com.google.guava:guava:28.0-jre'
    testImplementation 'org.codehaus.groovy:groovy-all:2.5.7'
    testImplementation 'org.spockframework:spock-core:1.3-groovy-2.5'
    testImplementation 'junit:junit:4.12'
}

application {
    mainClassName = 'myapp.App'
}

I've put the log4j2.yaml file under src/main/resources.

Configuration:
  status: warn
  name: YAMLConfigTest
  properties:
    property:
      name: filename
      value: target/test-yaml.log
  thresholdFilter:
    level: debug
  appenders:
    Console:
      name: STDOUT
      PatternLayout:
        Pattern: "%m%n"
    File:
      name: File
      fileName: ${filename}
      PatternLayout:
        Pattern: "%d %p %C{1.} [%t] %m%n"
      Filters:
        ThresholdFilter:
          level: error

  Loggers:
    logger:
      -
        name: org.apache.logging.log4j.test1
        level: debug
        additivity: false
        ThreadContextMapFilter:
          KeyValuePair:
            key: test
            value: 123
        AppenderRef:
          ref: STDOUT
      -
        name: org.apache.logging.log4j.test2
        level: debug
        additivity: false
        AppenderRef:
          ref: File
    Root:
      level: debug
      AppenderRef:
        ref: STDOUT

Update

I re-read the docs and they mention that JSON and YAML config files need additional dependencies to work. I had missed it since I only looked at the initial paragraph and the sample file. Adding the Jackson Core and Databind dependencies to my build.gradle allowed the config to take effect.

  // for JSON and YAML configs
  compile group: 'com.fasterxml.jackson.core', name: 'jackson-core', version: '2.10.3'
  compile group: 'com.fasterxml.jackson.core', name: 'jackson-databind', version: '2.10.3'

  compile group: 'org.apache.logging.log4j', name: 'log4j-api', version: '2.13.1'
  compile group: 'org.apache.logging.log4j', name: 'log4j-core', version: '2.13.1'

Answer 1

Karanveer's solution in "Update" section helped me a lot, thanks (it needed to add Jackson dependency).

But for me it was Jackson dataformat:

implementation 'com.fasterxml.jackson.dataformat:jackson-dataformat-yaml:2.13.3'

There is description of dependencies that might be required for different Log4J configurations: Log4j Runtime Dependencies