Could Not Initialize Class Org.apache.maven.plugin.war.util.webappstructureserializer ((new)) ❲TOP ✔❳

After updating the pom.xml , run a clean build:

If you cannot update the parent POM, you can explicitly override the plugin version in your local pom.xml as shown in Solution 1. You can verify which version of the plugin is actually being used by running: After updating the pom

<plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-war-plugin</artifactId> <version>2.6</version> <!-- Even works on some older versions with this config --> <configuration> <useCache>false</useCache> </configuration> </plugin> Setting useCache to false will force the plugin to re-evaluate the entire webapp structure every time, which makes the build slightly slower. However, it often prevents the WebappStructureSerializer from being invoked in a way that triggers the initialization error. Solution 4: JDK Environment Alignment If updating the plugin is not an option, you must align your build environment with the expectations of the legacy plugin. Solution 4: JDK Environment Alignment If updating the

If you are a Java developer working with legacy projects or migrating applications between environments, you have likely encountered the dreaded java.lang.NoClassDefFoundError: Could not initialize class org.apache.maven.plugin.war.util.WebappStructureSerializer . After updating the pom.xml