At a glance, it appears that you started CodeServer rather than DevMode - 
but the default port would have been 8888 rather than 8080 if your app was 
hosted by DevMode. 

On Monday, October 30, 2023 at 11:42:04 AM UTC-5 [email protected] wrote:

> Hello thanks for the response. I did change to gwt 2.10 and I'm using the 
> Tomcat as the  servlet container like you said. I manage to do this steps 
> http://gwt-plugins.github.io/documentation/gwt-eclipse-plugin/debugging/GWTDevModeAndTomcatWebServer.html
>  
> I everything is fine until I go to the explorer and this page comes first. 
>
> [image: 9876.png]
>
> I change the port and add the /AutoSys1-server/ like the tutorial said but 
> this happens. 
>
> [image: 8080.png]
>
>
> This are some info to give more context: 
>
> [image: debug-pro.png]
> [image: debug.png]
>
> [image: log.png]
>
> [image: log2.png]
>
> On Sunday, October 29, 2023 at 3:37:49 PM UTC-4 Colin Alworth wrote:
>
>> There are a few options I would suggest:
>>  * Upgrade to GWT 2.10 (especially since this is a new project). This is 
>> probably the simplest and best option. The new version of Jetty used there 
>> will not have this issue with scanning module files.
>>  * Stop using DevMode as an application server - run your own server, 
>> using the servlet container of your choice, and either pass -noserver to 
>> DevMode, or switch to CodeServer. This is a good idea whether or not you 
>> upgrade to GWT 2.10.
>>  * Downgrade to Java8, or at least remove any dependency that uses Java9+ 
>> bytecode. This might be your own project, based on the error messages. This 
>> is probably a pretty terrible option, but if your brand new project can't 
>> use latest GWT, and it happens that you don't actually need that dependency 
>> and it solves the problem, then it might be acceptable. If you actually 
>> want the annotation configuration to take place, take one/both of the 
>> earlier options.
>>  * Finally, it is possible to extend JettyLauncher and further customize 
>> the types that Jetty will scan. Start by overriding createWebAppContext(), 
>> configure the instance created by the super call as desired, then pass 
>> -server com.mycompany.myserver.MyCustomJettyLauncher to dev mode when it 
>> starts to use this type instead of the built in type.
>>
>> On Saturday, October 28, 2023 at 1:03:16 PM UTC-5 [email protected] 
>> wrote:
>>
>>> Hello. I'm trying to create a new GWT Project in Eclipse following the 
>>> official tutorial. I'm using GWT 2.9 + JDK 11. I create the project with 
>>> the plug in in eclipse but I can't debug the app like the tutorial said. 
>>>
>>> Loading Java files in com.ve.siaconca.AutoSys.
>>>
>>> Module setup completed in 5740 ms
>>>
>>> 2023-10-28 13:34:15.138:INFO:oejs.Server:main: jetty-9.2.z-SNAPSHOT
>>>
>>> 2023-10-28 13:34:15.212:INFO:oejsh.ContextHandler:main: Started 
>>> o.e.j.s.ServletContextHandler@1eb918ed{/,null,AVAILABLE}
>>>
>>> 2023-10-28 13:34:15.268:INFO:oejs.ServerConnector:main: Started 
>>> ServerConnector@37c5c9b9{HTTP/1.1}{127.0.0.1:9876}
>>>
>>> 2023-10-28 13:34:15.269:INFO:oejs.Server:main: Started @8336ms
>>>
>>>
>>> The code server is ready at http://127.0.0.1:9876/
>>>
>>> Code server started in 6.471 s ms
>>>
>>> [ERROR] jreLeakPrevention.gcDaemonFail
>>>
>>> java.lang.ClassNotFoundException: sun.misc.GC
>>>
>>> at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(
>>> BuiltinClassLoader.java:581)
>>>
>>> at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(
>>> ClassLoaders.java:178)
>>>
>>> at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:521)
>>>
>>> at java.base/java.lang.Class.forName0(Native Method)
>>>
>>> at java.base/java.lang.Class.forName(Class.java:315)
>>>
>>> at com.google.gwt.dev.shell.jetty.JettyLauncher.jreLeakPrevention(
>>> JettyLauncher.java:899)
>>>
>>> at com.google.gwt.dev.shell.jetty.JettyLauncher.start(
>>> JettyLauncher.java:722)
>>>
>>> at com.google.gwt.dev.DevMode.doStartUpServer(DevMode.java:636)
>>>
>>> at com.google.gwt.dev.DevModeBase.startUp(DevModeBase.java:898)
>>>
>>> at com.google.gwt.dev.DevModeBase.run(DevModeBase.java:705)
>>>
>>> at com.google.gwt.dev.DevMode.main(DevMode.java:432)
>>>
>>> 2023-10-28 13:34:15.591:INFO:oejs.Server:main: jetty-9.2.z-SNAPSHOT
>>>
>>> Starting Jetty on port 8888
>>>
>>> 2023-10-28 13:34:18.199:INFO:oejs.ServerConnector:main: Started 
>>> ServerConnector@677e3282{HTTP/1.1}{127.0.0.1:8888}
>>>
>>> 2023-10-28 13:34:18.202:INFO:oejs.Server:main: Started @11268ms
>>>
>>> [WARN] Failed startup of context 
>>> c.g.g.d.s.j.WebAppContextWithReload@6cc8136b{/,file:/C:/Users/VICTOR/eclipse-workspace/AutoSys/war/,STARTING}{C:\Users\VICTOR\eclipse-workspace\AutoSys\war}
>>>
>>> MultiException[java.lang.RuntimeException: Error scanning file 
>>> AutoSys$1.class, java.lang.RuntimeException: Error scanning file 
>>> AutoSys$1MyHandler$1.class, java.lang.RuntimeException: Error scanning 
>>> file AutoSys$1MyHandler.class, java.lang.RuntimeException: Error 
>>> scanning file AutoSys.class]
>>>
>>> at 
>>> org.eclipse.jetty.annotations.AnnotationConfiguration.scanForAnnotations(
>>> AnnotationConfiguration.java:536)
>>>
>>> at org.eclipse.jetty.annotations.AnnotationConfiguration.configure(
>>> AnnotationConfiguration.java:447)
>>>
>>> at org.eclipse.jetty.webapp.WebAppContext.configure(
>>> WebAppContext.java:479)
>>>
>>> at org.eclipse.jetty.webapp.WebAppContext.startContext(
>>> WebAppContext.java:1337)
>>>
>>> at org.eclipse.jetty.server.handler.ContextHandler.doStart(
>>> ContextHandler.java:741)
>>>
>>> at org.eclipse.jetty.webapp.WebAppContext.doStart(WebAppContext.java:505
>>> )
>>>
>>> at 
>>> com.google.gwt.dev.shell.jetty.JettyLauncher$WebAppContextWithReload.doStart(
>>> JettyLauncher.java:550)
>>>
>>> at org.eclipse.jetty.util.component.AbstractLifeCycle.start(
>>> AbstractLifeCycle.java:68)
>>>
>>> at org.eclipse.jetty.util.component.ContainerLifeCycle.start(
>>> ContainerLifeCycle.java:132)
>>>
>>> at org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(
>>> ContainerLifeCycle.java:114)
>>>
>>> at org.eclipse.jetty.server.handler.AbstractHandler.doStart(
>>> AbstractHandler.java:61)
>>>
>>> at org.eclipse.jetty.server.handler.RequestLogHandler.doStart(
>>> RequestLogHandler.java:140)
>>>
>>> at org.eclipse.jetty.util.component.AbstractLifeCycle.start(
>>> AbstractLifeCycle.java:68)
>>>
>>> at org.eclipse.jetty.util.component.ContainerLifeCycle.start(
>>> ContainerLifeCycle.java:132)
>>>
>>> at org.eclipse.jetty.server.Server.start(Server.java:387)
>>>
>>> at org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(
>>> ContainerLifeCycle.java:114)
>>>
>>> at org.eclipse.jetty.server.handler.AbstractHandler.doStart(
>>> AbstractHandler.java:61)
>>>
>>> at org.eclipse.jetty.server.Server.doStart(Server.java:354)
>>>
>>> at org.eclipse.jetty.util.component.AbstractLifeCycle.start(
>>> AbstractLifeCycle.java:68)
>>>
>>> at com.google.gwt.dev.shell.jetty.JettyLauncher.start(
>>> JettyLauncher.java:760)
>>>
>>> at com.google.gwt.dev.DevMode.doStartUpServer(DevMode.java:636)
>>>
>>> at com.google.gwt.dev.DevModeBase.startUp(DevModeBase.java:898)
>>>
>>> at com.google.gwt.dev.DevModeBase.run(DevModeBase.java:705)
>>>
>>> at com.google.gwt.dev.DevMode.main(DevMode.java:432)
>>>
>>> Caused by: MultiException[java.lang.RuntimeException: Error scanning 
>>> file AutoSys$1.class, java.lang.RuntimeException: Error scanning file 
>>> AutoSys$1MyHandler$1.class, java.lang.RuntimeException: Error scanning 
>>> file AutoSys$1MyHandler.class, java.lang.RuntimeException: Error 
>>> scanning file AutoSys.class]
>>>
>>> at org.eclipse.jetty.annotations.AnnotationParser.parseDir(
>>> AnnotationParser.java:681)
>>>
>>> at org.eclipse.jetty.annotations.AnnotationParser.parseDir(
>>> AnnotationParser.java:688)
>>>
>>> at org.eclipse.jetty.annotations.AnnotationParser.parseDir(
>>> AnnotationParser.java:688)
>>>
>>> at org.eclipse.jetty.annotations.AnnotationParser.parseDir(
>>> AnnotationParser.java:688)
>>>
>>> at org.eclipse.jetty.annotations.AnnotationParser.parseDir(
>>> AnnotationParser.java:688)
>>>
>>> at org.eclipse.jetty.annotations.AnnotationParser.parse(
>>> AnnotationParser.java:824)
>>>
>>> at org.eclipse.jetty.annotations.AnnotationConfiguration$ParserTask.call(
>>> AnnotationConfiguration.java:163)
>>>
>>> at org.eclipse.jetty.annotations.AnnotationConfiguration$1.run(
>>> AnnotationConfiguration.java:548)
>>>
>>> at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(
>>> QueuedThreadPool.java:635)
>>>
>>> at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(
>>> QueuedThreadPool.java:555)
>>>
>>> at java.base/java.lang.Thread.run(Thread.java:834)
>>>
>>> Suppressed: java.lang.RuntimeException: Error scanning file 
>>> AutoSys$1MyHandler$1.class
>>>
>>> at org.eclipse.jetty.annotations.AnnotationParser.parseDir(
>>> AnnotationParser.java:708)
>>>
>>> ... 10 more
>>>
>>> Caused by: java.lang.UnsupportedOperationException: This feature 
>>> requires ASM7
>>>
>>> at org.objectweb.asm.ClassVisitor.visitNestHost(ClassVisitor.java:150)
>>>
>>> at org.objectweb.asm.ClassReader.accept(ClassReader.java:550)
>>>
>>> at org.objectweb.asm.ClassReader.accept(ClassReader.java:400)
>>>
>>> at org.eclipse.jetty.annotations.AnnotationParser.scanClass(
>>> AnnotationParser.java:974)
>>>
>>> at org.eclipse.jetty.annotations.AnnotationParser.parseDir(
>>> AnnotationParser.java:702)
>>>
>>> ... 10 more
>>>
>>> Suppressed: java.lang.RuntimeException: Error scanning file 
>>> AutoSys$1MyHandler.class
>>>
>>> at org.eclipse.jetty.annotations.AnnotationParser.parseDir(
>>> AnnotationParser.java:708)
>>>
>>> ... 10 more
>>>
>>> Caused by: java.lang.UnsupportedOperationException: This feature 
>>> requires ASM7
>>>
>>> at org.objectweb.asm.ClassVisitor.visitNestHost(ClassVisitor.java:150)
>>>
>>> at org.objectweb.asm.ClassReader.accept(ClassReader.java:550)
>>>
>>> at org.objectweb.asm.ClassReader.accept(ClassReader.java:400)
>>>
>>> at org.eclipse.jetty.annotations.AnnotationParser.scanClass(
>>> AnnotationParser.java:974)
>>>
>>> at org.eclipse.jetty.annotations.AnnotationParser.parseDir(
>>> AnnotationParser.java:702)
>>>
>>> ... 10 more
>>>
>>> Suppressed: java.lang.RuntimeException: Error scanning file 
>>> AutoSys.class
>>>
>>> at org.eclipse.jetty.annotations.AnnotationParser.parseDir(
>>> AnnotationParser.java:708)
>>>
>>> ... 10 more
>>>
>>> Caused by: java.lang.UnsupportedOperationException: This feature 
>>> requires ASM7
>>>
>>> at org.objectweb.asm.ClassVisitor.visitNestMember(ClassVisitor.java:236)
>>>
>>> at org.objectweb.asm.ClassReader.accept(ClassReader.java:660)
>>>
>>> at org.objectweb.asm.ClassReader.accept(ClassReader.java:400)
>>>
>>> at org.eclipse.jetty.annotations.AnnotationParser.scanClass(
>>> AnnotationParser.java:974)
>>>
>>> at org.eclipse.jetty.annotations.AnnotationParser.parseDir(
>>> AnnotationParser.java:702)
>>>
>>> ... 10 more
>>>
>>> Caused by: java.lang.RuntimeException: Error scanning file 
>>> AutoSys$1.class
>>>
>>> at org.eclipse.jetty.annotations.AnnotationParser.parseDir(
>>> AnnotationParser.java:708)
>>>
>>> ... 10 more
>>>
>>> Caused by: java.lang.UnsupportedOperationException: This feature 
>>> requires ASM7
>>>
>>> at org.objectweb.asm.ClassVisitor.visitNestHost(ClassVisitor.java:150)
>>>
>>> at org.objectweb.asm.ClassReader.accept(ClassReader.java:550)
>>>
>>> at org.objectweb.asm.ClassReader.accept(ClassReader.java:400)
>>>
>>> at org.eclipse.jetty.annotations.AnnotationParser.scanClass(
>>> AnnotationParser.java:974)
>>>
>>> at org.eclipse.jetty.annotations.AnnotationParser.parseDir(
>>> AnnotationParser.java:702)
>>>
>>> ... 10 more
>>>
>>>
>>> that is the full Error. I haven't done anything to the project, I don't 
>>> understand why
>>>
>>> the error with the project. 
>>>
>>>

-- 
You received this message because you are subscribed to the Google Groups "GWT 
Users" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to [email protected].
To view this discussion on the web visit 
https://groups.google.com/d/msgid/google-web-toolkit/11207fec-239b-45e8-9aff-09efa941509fn%40googlegroups.com.

Reply via email to