Return value of File.delete() ignored in EarMojo

[elharo]

Description

In EarMojo.java:881, the return value of File.delete() is ignored:

resourceFile.delete();

If the file cannot be deleted (e.g., locked by another process, permission denied), the failure goes undetected. In incremental builds, stale resources can remain behind.

Expected behavior

Check the return value and log a warning:

if (!resourceFile.delete()) {
    getLog().warn("Failed to delete outdated resource: " + resourceFile);
}