Hi,
I changed the jvm from jdk 13 to jdk 8. The run time error has disappeared.
[INFO] --- jetty-maven-plugin:9.4.22.v20191022:run (default-cli) @ allapps ---
[INFO] Logging initialized @7595ms to org.eclipse.jetty.util.log.Slf4jLog
[INFO] webAppSourceDirectory not set. Trying src\main\webapp
[INFO] Reload Mechanic: automatic
[INFO] nonBlocking:false
[INFO] Classes = C:\struts2\work_dir\allapp\target\classes
[INFO] Configuring Jetty for project: Struts 2 AllApps Webapp
[INFO] Context path = /allapps
[INFO] Tmp directory = C:\struts2\work_dir\allapp\target\tmp
[INFO] Web defaults = org/eclipse/jetty/webapp/webdefault.xml
[INFO] Web overrides = none
[INFO] web.xml file =
file:///C:/struts2/work_dir/allapp/src/main/webapp/WEB-INF/web.xml
[INFO] Webapp directory = C:\struts2\work_dir\allapp\src\main\webapp
[INFO] jetty-9.4.22.v20191022; built: 2019-10-22T13:37:13.455Z; git:
b1e6b55512e008f7fbdf1cbea4ff8a6446d1073b; jvm 1.8.0_232-b09
[INFO] JVM Runtime does not support Modules
[INFO] Scanning elapsed time=343ms
[INFO] DefaultSessionIdManager workerName=node0
[INFO] No SessionScavenger set, using defaults
[INFO] node0 Scavenging every 660000ms
[INFO] Started o.e.j.m.p.JettyWebAppContext@30d9e63{Struts2
AllApps,/allapps,file:///C:/struts2/work_dir/allapp/src/main/webapp/,AVAILABLE}{file:///C:/struts2/work_dir/al
lapp/src/main/webapp/}
[INFO] Started ServerConnector@2a134959{HTTP/1.1,[http/1.1]}{0.0.0.0:8080}
[INFO] Started @10966ms
[INFO] Started Jetty Server
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