How fix the error org.eclipse.jetty.apache.jsp.JuliLog not a subtype

The other day I found myself in a java project that was running locally with the jetty-maven-plugin and JDK 11.0.5, and it generated the error:

[WARNING] Failed startup of context o.e.j.m.p.JettyWebAppContext@4e424582{Archetype Created Web Application,/,file:///workspaces/eclipse/feitam/gramercy/lab/gramercy-lab-case02/src/main/webapp/,UNAVAILABLE}{file:///workspaces/eclipse/feitam/gramercy/lab/gramercy-lab-case02/src/main/webapp/}
javax.servlet.ServletException: jsp@19c47==org.eclipse.jetty.jsp.JettyJspServlet,jsp=null,order=0,inst=true,async=false
	at org.eclipse.jetty.servlet.ServletHolder.initServlet(ServletHolder.java:612)
	at org.eclipse.jetty.servlet.ServletHolder.initialize(ServletHolder.java:425)
	at org.eclipse.jetty.servlet.ServletHandler.lambda$initialize$0(ServletHandler.java:751)
	at java.base/java.util.stream.SortedOps$SizedRefSortingSink.end(SortedOps.java:357)
	at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:485)
	at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474)
	at java.base/java.util.stream.StreamSpliterators$WrappingSpliterator.forEachRemaining(StreamSpliterators.java:312)
	at java.base/java.util.stream.Streams$ConcatSpliterator.forEachRemaining(Streams.java:735)
	at java.base/java.util.stream.Streams$ConcatSpliterator.forEachRemaining(Streams.java:734)
	at java.base/java.util.stream.ReferencePipeline$Head.forEach(ReferencePipeline.java:658)
	at org.eclipse.jetty.servlet.ServletHandler.initialize(ServletHandler.java:744)
	at org.eclipse.jetty.servlet.ServletContextHandler.startContext(ServletContextHandler.java:360)
	at org.eclipse.jetty.webapp.WebAppContext.startWebapp(WebAppContext.java:1445)
	at org.eclipse.jetty.maven.plugin.JettyWebAppContext.startWebapp(JettyWebAppContext.java:328)
	at org.eclipse.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1409)
	at org.eclipse.jetty.server.handler.ContextHandler.doStart(ContextHandler.java:822)
	at org.eclipse.jetty.servlet.ServletContextHandler.doStart(ServletContextHandler.java:275)
	at org.eclipse.jetty.webapp.WebAppContext.doStart(WebAppContext.java:524)
	at org.eclipse.jetty.maven.plugin.JettyWebAppContext.doStart(JettyWebAppContext.java:397)
	at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:72)
	at org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:169)
	at org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:117)
	at org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:97)
	at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:72)
	at org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:169)
	at org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:117)
	at org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:97)
	at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:72)
	at org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:169)
	at org.eclipse.jetty.server.Server.start(Server.java:407)
	at org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:110)
	at org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:97)
	at org.eclipse.jetty.server.Server.doStart(Server.java:371)
	at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:72)
	at org.eclipse.jetty.maven.plugin.AbstractJettyMojo.startJetty(AbstractJettyMojo.java:450)
	at org.eclipse.jetty.maven.plugin.AbstractJettyMojo.execute(AbstractJettyMojo.java:311)
	at org.eclipse.jetty.maven.plugin.JettyRunMojo.execute(JettyRunMojo.java:152)
	at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:134)
	at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:208)
	at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:153)
	at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:145)
	at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:116)
	at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:80)
	at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build(SingleThreadedBuilder.java:51)
	at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:128)
	at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:307)
	at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:193)
	at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:106)
	at org.apache.maven.cli.MavenCli.execute(MavenCli.java:862)
	at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:286)
	at org.apache.maven.cli.MavenCli.main(MavenCli.java:197)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
	at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:289)
	at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:229)
	at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:415)
	at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:356)
Caused by: java.lang.reflect.InvocationTargetException
	at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
	at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
	at java.base/jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
	at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:490)
	at org.eclipse.jetty.server.handler.ContextHandler$StaticContext.createInstance(ContextHandler.java:2784)
	at org.eclipse.jetty.servlet.ServletContextHandler$Context.createInstance(ServletContextHandler.java:1280)
	at org.eclipse.jetty.server.handler.ContextHandler$StaticContext.createServlet(ContextHandler.java:2801)
	at org.eclipse.jetty.servlet.ServletHolder.newInstance(ServletHolder.java:1159)
	at org.eclipse.jetty.servlet.ServletHolder.initServlet(ServletHolder.java:570)
	... 58 more
Caused by: java.util.ServiceConfigurationError: org.apache.juli.logging.Log: org.eclipse.jetty.apache.jsp.JuliLog not a subtype
	at java.base/java.util.ServiceLoader.fail(ServiceLoader.java:588)
	at java.base/java.util.ServiceLoader$LazyClassPathLookupIterator.hasNextService(ServiceLoader.java:1236)
	at java.base/java.util.ServiceLoader$LazyClassPathLookupIterator.hasNext(ServiceLoader.java:1264)
	at java.base/java.util.ServiceLoader$2.hasNext(ServiceLoader.java:1299)
	at java.base/java.util.ServiceLoader$3.hasNext(ServiceLoader.java:1384)
	at org.apache.juli.logging.LogFactory.<init>(LogFactory.java:92)
	at org.apache.juli.logging.LogFactory.<clinit>(LogFactory.java:67)
	at org.apache.jasper.servlet.JspServlet.<init>(JspServlet.java:69)
	at org.eclipse.jetty.jsp.JettyJspServlet.<init>(JettyJspServlet.java:39)
	... 67 more
[INFO] Started ServerConnector@35e2b89f{HTTP/1.1,[http/1.1]}{0.0.0.0:8080}
[INFO] Started @12507ms
[INFO] Started Jetty Server




´´´

The server jetty started but it gave that the service was unavailable with an error http 503:

The project uses jetty-maven-plugin version 9.4.26.v20200117:

			<plugin>
				<groupId>org.eclipse.jetty</groupId>
				<artifactId>jetty-maven-plugin</artifactId>
				<version>9.4.26.v20200117</version>
				<configuration>
					<war>${project.basedir}/target/gramercy-lab-case02</war>
				</configuration>
			</plugin>
´´´

After much looking and looking I found the problem: the jetty-maven-plugin had been added by mistake as a dependency, which should not be added as a dependency because it is a plugin:

Eliminating this dependency solves the problem:

[operatorfeitam@localhost gramercy-lab-case02]$ mvn clean compile package jetty:run
[INFO] Scanning for projects...
[INFO]                                                                         
[INFO] ------------------------------------------------------------------------
[INFO] Building gramercy-lab-case02 Maven Webapp 1.0-SNAPSHOT
[INFO] ------------------------------------------------------------------------
[INFO] 
[INFO] --- maven-clean-plugin:2.5:clean (default-clean) @ gramercy-lab-case02 ---
[INFO] Deleting /workspaces/eclipse/feitam/gramercy/lab/gramercy-lab-case02/target
...
...
...

[INFO] jetty-9.4.26.v20200117; built: 2020-01-17T12:35:33.676Z; git: 7b38981d25d14afb4a12ff1f2596756144edf695; jvm 11.0.5+10-LTS
[INFO] Scanning elapsed time=154ms
[INFO] DefaultSessionIdManager workerName=node0
[INFO] No SessionScavenger set, using defaults
[INFO] node0 Scavenging every 660000ms
[INFO] Started o.e.j.m.p.JettyWebAppContext@6f8e9d06{Archetype Created Web Application,/,file:///workspaces/eclipse/feitam/gramercy/lab/gramercy-lab-case02/src/main/webapp/,AVAILABLE}{file:///workspaces/eclipse/feitam/gramercy/lab/gramercy-lab-case02/src/main/webapp/}
[INFO] Started ServerConnector@38159384{HTTP/1.1,[http/1.1]}{0.0.0.0:8080}
[INFO] Started @14448ms
[INFO] Started Jetty Server

´´´

Here we see the result of the correct operation in the browser:

Bad things done wrong end.

Maven error with jetty:run java.util.ServiceConfigurationError: org.apache.juli.logging.Log: org.eclipse.jetty.apache.jsp.JuliLog not a subtype

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Unable to verify certificate 'Server-Cert'. Add "NSSEnforceValidCerts off" to nss.conf so the server can start until the problem can be resolved