How To Enable Class Loading Verbose Logs

To display verbose logs about classes loaded by the JVM, you can define the org.gradle.jvmargs property combined with JVM -Xlog:class option using file redirection. Here is a typical usage:

-Dorg.gradle.jvmargs=-Xlog:class+load=info:file=%TEMP%/gradle-daemon-classes.log:time,level

This redirects the logs in the file gradle-daemon-classes.log in the OS temporary folder. It should contain such logs:

[2026-01-27T15:27:16.858+0100][info] org.slf4j.Marker source: file:/C:/Users/jdoe/.gradle/wrapper/dists/gradle-8.10.2-bin/a04bxjujx95o3nb99gddekhwo/gradle-8.10.2/lib/slf4j-api-1.7.36.jar
[2026-01-27T15:27:16.858+0100][info] org.slf4j.helpers.BasicMarker source: file:/C:/Users/jdoe/.gradle/wrapper/dists/gradle-8.10.2-bin/a04bxjujx95o3nb99gddekhwo/gradle-8.10.2/lib/slf4j-api-1.7.36.jar
[2026-01-27T15:27:16.859+0100][info] org.slf4j.LoggerFactory source: file:/C:/Users/jdoe/.gradle/wrapper/dists/gradle-8.10.2-bin/a04bxjujx95o3nb99gddekhwo/gradle-8.10.2/lib/slf4j-api-1.7.36.jar
[2026-01-27T15:27:16.859+0100][info] org.slf4j.event.LoggingEvent source: file:/C:/Users/jdoe/.gradle/wrapper/dists/gradle-8.10.2-bin/a04bxjujx95o3nb99gddekhwo/gradle-8.10.2/lib/slf4j-api-1.7.36.jar

The JVM provides more options and logs categories, refer to the official documentation to learn more.