Ele gera o arquivo war, e aparentemente ocorre tudo certo. Quando executo no console de windows não aparece nenhum erro.
[INFO] Scanning for projects...
[INFO]
[INFO] ---------------------< br.com.alura.maven:lojaweb >---------------------
[INFO] Building lojaweb Maven Webapp 1.0.0-SNAPSHOT
[INFO] --------------------------------[ war ]---------------------------------
[INFO]
[INFO] --- maven-resources-plugin:3.0.2:resources (default-resources) @ lojaweb ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] Copying 0 resource
[INFO]
[INFO] --- maven-compiler-plugin:3.8.0:compile (default-compile) @ lojaweb ---
[INFO] Nothing to compile - all classes are up to date
[INFO]
[INFO] --- maven-resources-plugin:3.0.2:testResources (default-testResources) @ lojaweb ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] skip non existing resourceDirectory C:\Users\GuilhermeNotebook\Desktop\Cursos\Alura\Formação Java\ServletsEMaven\lojaweb\src\test\resources
[INFO]
[INFO] --- maven-compiler-plugin:3.8.0:testCompile (default-testCompile) @ lojaweb ---
[INFO] No sources to compile
[INFO]
[INFO] --- maven-surefire-plugin:2.22.1:test (default-test) @ lojaweb ---
[INFO] No tests to run.
[INFO]
[INFO] --- maven-war-plugin:3.2.2:war (default-war) @ lojaweb ---
[INFO] Packaging webapp
[INFO] Assembling webapp [lojaweb] in [C:\Users\GuilhermeNotebook\Desktop\Cursos\Alura\Formação Java\ServletsEMaven\lojaweb\target\lojaweb]
[INFO] Processing war project
[INFO] Copying webapp resources [C:\Users\GuilhermeNotebook\Desktop\Cursos\Alura\Formação Java\ServletsEMaven\lojaweb\src\main\webapp]
[INFO] Webapp assembled in [63 msecs]
[INFO] Building war: C:\Users\GuilhermeNotebook\Desktop\Cursos\Alura\Formação Java\ServletsEMaven\lojaweb\target\lojaweb.war
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 4.596 s
[INFO] Finished at: 2020-08-11T12:18:17-03:00
[INFO] ------------------------------------------------------------------------
Exception in thread "main" java.lang.UnsatisfiedLinkError: java.lang.Shutdown.beforeHalt()V
at java.lang.Shutdown.beforeHalt(Native Method)
at java.lang.Shutdown.exit(Unknown Source)
at java.lang.Runtime.exit(Unknown Source)
at java.lang.System.exit(Unknown Source)
at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:349)