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Error 503 in GWT with the servlet and paths (Java)


Is Java “pass-by-reference” or “pass-by-value”?How do I efficiently iterate over each entry in a Java Map?How do I read / convert an InputStream into a String in Java?When to use LinkedList over ArrayList in Java?How do I generate random integers within a specific range in Java?How do I convert a String to an int in Java?Creating a memory leak with JavaGetting a Jetty exception when I reloading my GWT development web serverRESTEasy, Error 503 and servlet not foundWhen running a project “Unsatisfied dependency expressed through constructor parameter 0”













1















I work with IntelliJ and when I run it in a web browser, it returns 503 error : 



 Problem accessing / MySampleApplication.html. Reason:
 Service Unavailable"*


The bug should be somewhere in the XML file and it seems to be something wrong with the servlet path.



XML:



<!DOCTYPE module PUBLIC "-//Google Inc.//DTD Google Web Toolkit 2.8.0//EN"
 "http://gwtproject.org/doctype/2.8.0/gwt-module.dtd">
<module rename-to="MySampleApplication">

 <inherits name='com.google.gwt.user.User'/>

 <entry-point class='com.mySampleApplication.client.MySampleApplication'/>

 <servlet path='/MySampleApplicationService' class='com.mySampleApplication.server.ServiceImpl'/>>
 />

</module>


Console:



Code server started in 12.55 s ms
2019-03-06 13:09:20.410:INFO:oejs.Server:main: Started @13836ms
Loading modules
 com.mySampleApplication.MySampleApplication
 Validating <servlet> tags for module 'MySampleApplication'
 For additional info see: file:/Users/simonemettesorensen/Downloads/gwt-2.8.2/doc/helpInfo/servletMappings.html
 [WARN] Module declares a servlet class 'com.mySampleApplication.server.ServiceImpl' with a mapping to '/MySampleApplication/MySampleApplicationService', but the web.xml has no corresponding mapping; please add the following lines to your web.xml:
<servlet-mapping>
 <servlet-name>com.mySampleApplication.MySampleApplication Service</servlet-name>
 <url-pattern>/MySampleApplication/MySampleApplicationService</url-pattern>
</servlet-mapping>
2019-03-06 13:09:20.549:INFO:oejs.Server:main: jetty-9.2.z-SNAPSHOT
Starting Jetty on port 8888
 [WARN] Failed startup of context c.g.g.d.s.j.WebAppContextWithReload@41aa7994/,file:/Users/simonemettesorensen/Library/Caches/IntelliJIdea2018.2/gwt/%C3%B8velsemedrpc.9e5e27b2/oevelseMedRPC.6c3e6f2f/run/www/,STARTING/Users/simonemettesorensen/Library/Caches/IntelliJIdea2018.2/gwt/øvelsemedrpc.9e5e27b2/oevelseMedRPC.6c3e6f2f/run/www
java.lang.NullPointerException
 at java.lang.String.compareTo(String.java:1155)
 at org.eclipse.jetty.servlet.ServletHolder.compareTo(ServletHolder.java:209)
 at org.eclipse.jetty.servlet.ServletHolder.compareTo(ServletHolder.java:70)
 at java.util.ComparableTimSort.countRunAndMakeAscending(ComparableTimSort.java:321)
 at java.util.ComparableTimSort.sort(ComparableTimSort.java:188)
 at java.util.Arrays.sort(Arrays.java:1246)
 at org.eclipse.jetty.servlet.ServletHandler.initialize(ServletHandler.java:865)
 at org.eclipse.jetty.servlet.ServletContextHandler.startContext(ServletContextHandler.java:298)
 at org.eclipse.jetty.webapp.WebAppContext.startWebapp(WebAppContext.java:1349)
 at org.eclipse.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1342)
 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:923)
 at com.google.gwt.dev.DevModeBase.run(DevModeBase.java:706)
 at com.google.gwt.dev.DevMode.main(DevMode.java:432)
2019-03-06 13:09:22.470:INFO:oejs.ServerConnector:main: Started ServerConnector@1006dd06HTTP/1.1127.0.0.1:8888
2019-03-06 13:09:22.470:INFO:oejs.Server:main: Started @15896ms
Dev Mode initialized. Startup URL: 
http://127.0.0.1:8888/MySampleApplication.html
[ERROR] 503 - GET /MySampleApplication.html (127.0.0.1) 312 bytes
 Request Headers
 Host: 127.0.0.1:8888
 Connection: keep-alive
 Upgrade-Insecure-Requests: 1
 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_4) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/72.0.3626.109 Safari/537.36
 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8
 Accept-Encoding: gzip, deflate, br
 Accept-Language: da-DK,da;q=0.9,en-US;q=0.8,en;q=0.7
 Response headers
 Date: Wed, 06 Mar 2019 12:09:22 GMT
 Cache-Control: must-revalidate,no-cache,no-store
 Content-Type: text/html; charset=ISO-8859-1
 Content-Length: 312


And if I add this, it won't run because of an unexpected error: "servlet mapping :



<servlet-mapping>
 <servlet-name>com.mySampleApplication.MySampleApplication Service</servlet-name>
 <url-pattern>/MySampleApplication/MySampleApplicationService</url-pattern>
</servlet-mapping>


I would really appreciate any help.






java xml gwt







share|improve this question
























  • There is a blank between 'MySampleApplication' and 'Service' inside the servlet-name tag. Is this an error in your question or is it so defined in your web.xml? If it is so defined in your web.xml, this might be a problem.

    – El Hoss
    Mar 7 at 11:10
















1















I work with IntelliJ and when I run it in a web browser, it returns 503 error : 



 Problem accessing / MySampleApplication.html. Reason:
 Service Unavailable"*


The bug should be somewhere in the XML file and it seems to be something wrong with the servlet path.



XML:



<!DOCTYPE module PUBLIC "-//Google Inc.//DTD Google Web Toolkit 2.8.0//EN"
 "http://gwtproject.org/doctype/2.8.0/gwt-module.dtd">
<module rename-to="MySampleApplication">

 <inherits name='com.google.gwt.user.User'/>

 <entry-point class='com.mySampleApplication.client.MySampleApplication'/>

 <servlet path='/MySampleApplicationService' class='com.mySampleApplication.server.ServiceImpl'/>>
 />

</module>


Console:



Code server started in 12.55 s ms
2019-03-06 13:09:20.410:INFO:oejs.Server:main: Started @13836ms
Loading modules
 com.mySampleApplication.MySampleApplication
 Validating <servlet> tags for module 'MySampleApplication'
 For additional info see: file:/Users/simonemettesorensen/Downloads/gwt-2.8.2/doc/helpInfo/servletMappings.html
 [WARN] Module declares a servlet class 'com.mySampleApplication.server.ServiceImpl' with a mapping to '/MySampleApplication/MySampleApplicationService', but the web.xml has no corresponding mapping; please add the following lines to your web.xml:
<servlet-mapping>
 <servlet-name>com.mySampleApplication.MySampleApplication Service</servlet-name>
 <url-pattern>/MySampleApplication/MySampleApplicationService</url-pattern>
</servlet-mapping>
2019-03-06 13:09:20.549:INFO:oejs.Server:main: jetty-9.2.z-SNAPSHOT
Starting Jetty on port 8888
 [WARN] Failed startup of context c.g.g.d.s.j.WebAppContextWithReload@41aa7994/,file:/Users/simonemettesorensen/Library/Caches/IntelliJIdea2018.2/gwt/%C3%B8velsemedrpc.9e5e27b2/oevelseMedRPC.6c3e6f2f/run/www/,STARTING/Users/simonemettesorensen/Library/Caches/IntelliJIdea2018.2/gwt/øvelsemedrpc.9e5e27b2/oevelseMedRPC.6c3e6f2f/run/www
java.lang.NullPointerException
 at java.lang.String.compareTo(String.java:1155)
 at org.eclipse.jetty.servlet.ServletHolder.compareTo(ServletHolder.java:209)
 at org.eclipse.jetty.servlet.ServletHolder.compareTo(ServletHolder.java:70)
 at java.util.ComparableTimSort.countRunAndMakeAscending(ComparableTimSort.java:321)
 at java.util.ComparableTimSort.sort(ComparableTimSort.java:188)
 at java.util.Arrays.sort(Arrays.java:1246)
 at org.eclipse.jetty.servlet.ServletHandler.initialize(ServletHandler.java:865)
 at org.eclipse.jetty.servlet.ServletContextHandler.startContext(ServletContextHandler.java:298)
 at org.eclipse.jetty.webapp.WebAppContext.startWebapp(WebAppContext.java:1349)
 at org.eclipse.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1342)
 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:923)
 at com.google.gwt.dev.DevModeBase.run(DevModeBase.java:706)
 at com.google.gwt.dev.DevMode.main(DevMode.java:432)
2019-03-06 13:09:22.470:INFO:oejs.ServerConnector:main: Started ServerConnector@1006dd06HTTP/1.1127.0.0.1:8888
2019-03-06 13:09:22.470:INFO:oejs.Server:main: Started @15896ms
Dev Mode initialized. Startup URL: 
http://127.0.0.1:8888/MySampleApplication.html
[ERROR] 503 - GET /MySampleApplication.html (127.0.0.1) 312 bytes
 Request Headers
 Host: 127.0.0.1:8888
 Connection: keep-alive
 Upgrade-Insecure-Requests: 1
 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_4) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/72.0.3626.109 Safari/537.36
 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8
 Accept-Encoding: gzip, deflate, br
 Accept-Language: da-DK,da;q=0.9,en-US;q=0.8,en;q=0.7
 Response headers
 Date: Wed, 06 Mar 2019 12:09:22 GMT
 Cache-Control: must-revalidate,no-cache,no-store
 Content-Type: text/html; charset=ISO-8859-1
 Content-Length: 312


And if I add this, it won't run because of an unexpected error: "servlet mapping :



<servlet-mapping>
 <servlet-name>com.mySampleApplication.MySampleApplication Service</servlet-name>
 <url-pattern>/MySampleApplication/MySampleApplicationService</url-pattern>
</servlet-mapping>


I would really appreciate any help.






java xml gwt







share|improve this question
























  • There is a blank between 'MySampleApplication' and 'Service' inside the servlet-name tag. Is this an error in your question or is it so defined in your web.xml? If it is so defined in your web.xml, this might be a problem.

    – El Hoss
    Mar 7 at 11:10














1












1








1








I work with IntelliJ and when I run it in a web browser, it returns 503 error : 



 Problem accessing / MySampleApplication.html. Reason:
 Service Unavailable"*


The bug should be somewhere in the XML file and it seems to be something wrong with the servlet path.



XML:



<!DOCTYPE module PUBLIC "-//Google Inc.//DTD Google Web Toolkit 2.8.0//EN"
 "http://gwtproject.org/doctype/2.8.0/gwt-module.dtd">
<module rename-to="MySampleApplication">

 <inherits name='com.google.gwt.user.User'/>

 <entry-point class='com.mySampleApplication.client.MySampleApplication'/>

 <servlet path='/MySampleApplicationService' class='com.mySampleApplication.server.ServiceImpl'/>>
 />

</module>


Console:



Code server started in 12.55 s ms
2019-03-06 13:09:20.410:INFO:oejs.Server:main: Started @13836ms
Loading modules
 com.mySampleApplication.MySampleApplication
 Validating <servlet> tags for module 'MySampleApplication'
 For additional info see: file:/Users/simonemettesorensen/Downloads/gwt-2.8.2/doc/helpInfo/servletMappings.html
 [WARN] Module declares a servlet class 'com.mySampleApplication.server.ServiceImpl' with a mapping to '/MySampleApplication/MySampleApplicationService', but the web.xml has no corresponding mapping; please add the following lines to your web.xml:
<servlet-mapping>
 <servlet-name>com.mySampleApplication.MySampleApplication Service</servlet-name>
 <url-pattern>/MySampleApplication/MySampleApplicationService</url-pattern>
</servlet-mapping>
2019-03-06 13:09:20.549:INFO:oejs.Server:main: jetty-9.2.z-SNAPSHOT
Starting Jetty on port 8888
 [WARN] Failed startup of context c.g.g.d.s.j.WebAppContextWithReload@41aa7994/,file:/Users/simonemettesorensen/Library/Caches/IntelliJIdea2018.2/gwt/%C3%B8velsemedrpc.9e5e27b2/oevelseMedRPC.6c3e6f2f/run/www/,STARTING/Users/simonemettesorensen/Library/Caches/IntelliJIdea2018.2/gwt/øvelsemedrpc.9e5e27b2/oevelseMedRPC.6c3e6f2f/run/www
java.lang.NullPointerException
 at java.lang.String.compareTo(String.java:1155)
 at org.eclipse.jetty.servlet.ServletHolder.compareTo(ServletHolder.java:209)
 at org.eclipse.jetty.servlet.ServletHolder.compareTo(ServletHolder.java:70)
 at java.util.ComparableTimSort.countRunAndMakeAscending(ComparableTimSort.java:321)
 at java.util.ComparableTimSort.sort(ComparableTimSort.java:188)
 at java.util.Arrays.sort(Arrays.java:1246)
 at org.eclipse.jetty.servlet.ServletHandler.initialize(ServletHandler.java:865)
 at org.eclipse.jetty.servlet.ServletContextHandler.startContext(ServletContextHandler.java:298)
 at org.eclipse.jetty.webapp.WebAppContext.startWebapp(WebAppContext.java:1349)
 at org.eclipse.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1342)
 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:923)
 at com.google.gwt.dev.DevModeBase.run(DevModeBase.java:706)
 at com.google.gwt.dev.DevMode.main(DevMode.java:432)
2019-03-06 13:09:22.470:INFO:oejs.ServerConnector:main: Started ServerConnector@1006dd06HTTP/1.1127.0.0.1:8888
2019-03-06 13:09:22.470:INFO:oejs.Server:main: Started @15896ms
Dev Mode initialized. Startup URL: 
http://127.0.0.1:8888/MySampleApplication.html
[ERROR] 503 - GET /MySampleApplication.html (127.0.0.1) 312 bytes
 Request Headers
 Host: 127.0.0.1:8888
 Connection: keep-alive
 Upgrade-Insecure-Requests: 1
 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_4) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/72.0.3626.109 Safari/537.36
 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8
 Accept-Encoding: gzip, deflate, br
 Accept-Language: da-DK,da;q=0.9,en-US;q=0.8,en;q=0.7
 Response headers
 Date: Wed, 06 Mar 2019 12:09:22 GMT
 Cache-Control: must-revalidate,no-cache,no-store
 Content-Type: text/html; charset=ISO-8859-1
 Content-Length: 312


And if I add this, it won't run because of an unexpected error: "servlet mapping :



<servlet-mapping>
 <servlet-name>com.mySampleApplication.MySampleApplication Service</servlet-name>
 <url-pattern>/MySampleApplication/MySampleApplicationService</url-pattern>
</servlet-mapping>


I would really appreciate any help.






java xml gwt







share|improve this question
















I work with IntelliJ and when I run it in a web browser, it returns 503 error : 



 Problem accessing / MySampleApplication.html. Reason:
 Service Unavailable"*


The bug should be somewhere in the XML file and it seems to be something wrong with the servlet path.



XML:



<!DOCTYPE module PUBLIC "-//Google Inc.//DTD Google Web Toolkit 2.8.0//EN"
 "http://gwtproject.org/doctype/2.8.0/gwt-module.dtd">
<module rename-to="MySampleApplication">

 <inherits name='com.google.gwt.user.User'/>

 <entry-point class='com.mySampleApplication.client.MySampleApplication'/>

 <servlet path='/MySampleApplicationService' class='com.mySampleApplication.server.ServiceImpl'/>>
 />

</module>


Console:



Code server started in 12.55 s ms
2019-03-06 13:09:20.410:INFO:oejs.Server:main: Started @13836ms
Loading modules
 com.mySampleApplication.MySampleApplication
 Validating <servlet> tags for module 'MySampleApplication'
 For additional info see: file:/Users/simonemettesorensen/Downloads/gwt-2.8.2/doc/helpInfo/servletMappings.html
 [WARN] Module declares a servlet class 'com.mySampleApplication.server.ServiceImpl' with a mapping to '/MySampleApplication/MySampleApplicationService', but the web.xml has no corresponding mapping; please add the following lines to your web.xml:
<servlet-mapping>
 <servlet-name>com.mySampleApplication.MySampleApplication Service</servlet-name>
 <url-pattern>/MySampleApplication/MySampleApplicationService</url-pattern>
</servlet-mapping>
2019-03-06 13:09:20.549:INFO:oejs.Server:main: jetty-9.2.z-SNAPSHOT
Starting Jetty on port 8888
 [WARN] Failed startup of context c.g.g.d.s.j.WebAppContextWithReload@41aa7994/,file:/Users/simonemettesorensen/Library/Caches/IntelliJIdea2018.2/gwt/%C3%B8velsemedrpc.9e5e27b2/oevelseMedRPC.6c3e6f2f/run/www/,STARTING/Users/simonemettesorensen/Library/Caches/IntelliJIdea2018.2/gwt/øvelsemedrpc.9e5e27b2/oevelseMedRPC.6c3e6f2f/run/www
java.lang.NullPointerException
 at java.lang.String.compareTo(String.java:1155)
 at org.eclipse.jetty.servlet.ServletHolder.compareTo(ServletHolder.java:209)
 at org.eclipse.jetty.servlet.ServletHolder.compareTo(ServletHolder.java:70)
 at java.util.ComparableTimSort.countRunAndMakeAscending(ComparableTimSort.java:321)
 at java.util.ComparableTimSort.sort(ComparableTimSort.java:188)
 at java.util.Arrays.sort(Arrays.java:1246)
 at org.eclipse.jetty.servlet.ServletHandler.initialize(ServletHandler.java:865)
 at org.eclipse.jetty.servlet.ServletContextHandler.startContext(ServletContextHandler.java:298)
 at org.eclipse.jetty.webapp.WebAppContext.startWebapp(WebAppContext.java:1349)
 at org.eclipse.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1342)
 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:923)
 at com.google.gwt.dev.DevModeBase.run(DevModeBase.java:706)
 at com.google.gwt.dev.DevMode.main(DevMode.java:432)
2019-03-06 13:09:22.470:INFO:oejs.ServerConnector:main: Started ServerConnector@1006dd06HTTP/1.1127.0.0.1:8888
2019-03-06 13:09:22.470:INFO:oejs.Server:main: Started @15896ms
Dev Mode initialized. Startup URL: 
http://127.0.0.1:8888/MySampleApplication.html
[ERROR] 503 - GET /MySampleApplication.html (127.0.0.1) 312 bytes
 Request Headers
 Host: 127.0.0.1:8888
 Connection: keep-alive
 Upgrade-Insecure-Requests: 1
 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_4) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/72.0.3626.109 Safari/537.36
 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8
 Accept-Encoding: gzip, deflate, br
 Accept-Language: da-DK,da;q=0.9,en-US;q=0.8,en;q=0.7
 Response headers
 Date: Wed, 06 Mar 2019 12:09:22 GMT
 Cache-Control: must-revalidate,no-cache,no-store
 Content-Type: text/html; charset=ISO-8859-1
 Content-Length: 312


And if I add this, it won't run because of an unexpected error: "servlet mapping :



<servlet-mapping>
 <servlet-name>com.mySampleApplication.MySampleApplication Service</servlet-name>
 <url-pattern>/MySampleApplication/MySampleApplicationService</url-pattern>
</servlet-mapping>


I would really appreciate any help.






java xml gwt




java xml gwt






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edited Mar 8 at 18:13









Mr. Semicolon

531422




531422










asked Mar 7 at 8:12









Simone SørensenSimone Sørensen

61




61












  • There is a blank between 'MySampleApplication' and 'Service' inside the servlet-name tag. Is this an error in your question or is it so defined in your web.xml? If it is so defined in your web.xml, this might be a problem.

    – El Hoss
    Mar 7 at 11:10


















  • There is a blank between 'MySampleApplication' and 'Service' inside the servlet-name tag. Is this an error in your question or is it so defined in your web.xml? If it is so defined in your web.xml, this might be a problem.

    – El Hoss
    Mar 7 at 11:10

















There is a blank between 'MySampleApplication' and 'Service' inside the servlet-name tag. Is this an error in your question or is it so defined in your web.xml? If it is so defined in your web.xml, this might be a problem.

– El Hoss
Mar 7 at 11:10






There is a blank between 'MySampleApplication' and 'Service' inside the servlet-name tag. Is this an error in your question or is it so defined in your web.xml? If it is so defined in your web.xml, this might be a problem.

– El Hoss
Mar 7 at 11:10













2 Answers
2






active

oldest

votes


















0














Simone, welcome to the GWT world!



If that servlet uses GWT-RPC I would strongly suggest you to look into creating a JSON endpoint. Moving forward the RPC part will be dropped, JSON is standard and future-proof.
It's also waaaaaaay easier to debug and mock up, makes working with GWT significantly easier.






share|improve this answer























  • Thank you but my teacher wants us til use GWT RPC and don't tell me why :)

    – Simone Sørensen
    Mar 12 at 6:44











  • Teacher? They are teaching GWT in school? That's interesting ... Here's a working example of GWT-RPC: github.com/jimmyfm/gwt-mvp-examples/blob/master/src/main/java/…

    – Luigi Polvani
    Mar 13 at 14:34


















0














You need to replace the <servlet> from your *.gwt.xml file with a <servlet-mapping> (and <servlet>) in your WEB-INF/web.xml (a standard servlet mapping, not GWT-specific, like in any other, non-GWT, servlet development)






share|improve this answer























  • thank you for the answer. I already tried that but the console then said [ERROR] Line 13: Unexpected element 'servlet-mapping'

    – Simone Sørensen
    Mar 12 at 6:41












  • aaaah now I understood what you meant and it worked!! thank you

    – Simone Sørensen
    Mar 12 at 7:06










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2 Answers
2






active

oldest

votes








2 Answers
2






active

oldest

votes









active

oldest

votes






active

oldest

votes









0














Simone, welcome to the GWT world!



If that servlet uses GWT-RPC I would strongly suggest you to look into creating a JSON endpoint. Moving forward the RPC part will be dropped, JSON is standard and future-proof.
It's also waaaaaaay easier to debug and mock up, makes working with GWT significantly easier.






share|improve this answer























  • Thank you but my teacher wants us til use GWT RPC and don't tell me why :)

    – Simone Sørensen
    Mar 12 at 6:44











  • Teacher? They are teaching GWT in school? That's interesting ... Here's a working example of GWT-RPC: github.com/jimmyfm/gwt-mvp-examples/blob/master/src/main/java/…

    – Luigi Polvani
    Mar 13 at 14:34















0














Simone, welcome to the GWT world!



If that servlet uses GWT-RPC I would strongly suggest you to look into creating a JSON endpoint. Moving forward the RPC part will be dropped, JSON is standard and future-proof.
It's also waaaaaaay easier to debug and mock up, makes working with GWT significantly easier.






share|improve this answer























  • Thank you but my teacher wants us til use GWT RPC and don't tell me why :)

    – Simone Sørensen
    Mar 12 at 6:44











  • Teacher? They are teaching GWT in school? That's interesting ... Here's a working example of GWT-RPC: github.com/jimmyfm/gwt-mvp-examples/blob/master/src/main/java/…

    – Luigi Polvani
    Mar 13 at 14:34













0












0








0







Simone, welcome to the GWT world!



If that servlet uses GWT-RPC I would strongly suggest you to look into creating a JSON endpoint. Moving forward the RPC part will be dropped, JSON is standard and future-proof.
It's also waaaaaaay easier to debug and mock up, makes working with GWT significantly easier.






share|improve this answer













Simone, welcome to the GWT world!



If that servlet uses GWT-RPC I would strongly suggest you to look into creating a JSON endpoint. Moving forward the RPC part will be dropped, JSON is standard and future-proof.
It's also waaaaaaay easier to debug and mock up, makes working with GWT significantly easier.







share|improve this answer












share|improve this answer



share|improve this answer










answered Mar 8 at 14:43









Luigi PolvaniLuigi Polvani

35559




35559












  • Thank you but my teacher wants us til use GWT RPC and don't tell me why :)

    – Simone Sørensen
    Mar 12 at 6:44











  • Teacher? They are teaching GWT in school? That's interesting ... Here's a working example of GWT-RPC: github.com/jimmyfm/gwt-mvp-examples/blob/master/src/main/java/…

    – Luigi Polvani
    Mar 13 at 14:34

















  • Thank you but my teacher wants us til use GWT RPC and don't tell me why :)

    – Simone Sørensen
    Mar 12 at 6:44











  • Teacher? They are teaching GWT in school? That's interesting ... Here's a working example of GWT-RPC: github.com/jimmyfm/gwt-mvp-examples/blob/master/src/main/java/…

    – Luigi Polvani
    Mar 13 at 14:34
















Thank you but my teacher wants us til use GWT RPC and don't tell me why :)

– Simone Sørensen
Mar 12 at 6:44





Thank you but my teacher wants us til use GWT RPC and don't tell me why :)

– Simone Sørensen
Mar 12 at 6:44













Teacher? They are teaching GWT in school? That's interesting ... Here's a working example of GWT-RPC: github.com/jimmyfm/gwt-mvp-examples/blob/master/src/main/java/…

– Luigi Polvani
Mar 13 at 14:34





Teacher? They are teaching GWT in school? That's interesting ... Here's a working example of GWT-RPC: github.com/jimmyfm/gwt-mvp-examples/blob/master/src/main/java/…

– Luigi Polvani
Mar 13 at 14:34













0














You need to replace the <servlet> from your *.gwt.xml file with a <servlet-mapping> (and <servlet>) in your WEB-INF/web.xml (a standard servlet mapping, not GWT-specific, like in any other, non-GWT, servlet development)






share|improve this answer























  • thank you for the answer. I already tried that but the console then said [ERROR] Line 13: Unexpected element 'servlet-mapping'

    – Simone Sørensen
    Mar 12 at 6:41












  • aaaah now I understood what you meant and it worked!! thank you

    – Simone Sørensen
    Mar 12 at 7:06















0














You need to replace the <servlet> from your *.gwt.xml file with a <servlet-mapping> (and <servlet>) in your WEB-INF/web.xml (a standard servlet mapping, not GWT-specific, like in any other, non-GWT, servlet development)






share|improve this answer























  • thank you for the answer. I already tried that but the console then said [ERROR] Line 13: Unexpected element 'servlet-mapping'

    – Simone Sørensen
    Mar 12 at 6:41












  • aaaah now I understood what you meant and it worked!! thank you

    – Simone Sørensen
    Mar 12 at 7:06













0












0








0







You need to replace the <servlet> from your *.gwt.xml file with a <servlet-mapping> (and <servlet>) in your WEB-INF/web.xml (a standard servlet mapping, not GWT-specific, like in any other, non-GWT, servlet development)






share|improve this answer













You need to replace the <servlet> from your *.gwt.xml file with a <servlet-mapping> (and <servlet>) in your WEB-INF/web.xml (a standard servlet mapping, not GWT-specific, like in any other, non-GWT, servlet development)







share|improve this answer












share|improve this answer



share|improve this answer










answered Mar 8 at 18:34









Thomas BroyerThomas Broyer

62.4k680153




62.4k680153












  • thank you for the answer. I already tried that but the console then said [ERROR] Line 13: Unexpected element 'servlet-mapping'

    – Simone Sørensen
    Mar 12 at 6:41












  • aaaah now I understood what you meant and it worked!! thank you

    – Simone Sørensen
    Mar 12 at 7:06

















  • thank you for the answer. I already tried that but the console then said [ERROR] Line 13: Unexpected element 'servlet-mapping'

    – Simone Sørensen
    Mar 12 at 6:41












  • aaaah now I understood what you meant and it worked!! thank you

    – Simone Sørensen
    Mar 12 at 7:06
















thank you for the answer. I already tried that but the console then said [ERROR] Line 13: Unexpected element 'servlet-mapping'

– Simone Sørensen
Mar 12 at 6:41






thank you for the answer. I already tried that but the console then said [ERROR] Line 13: Unexpected element 'servlet-mapping'

– Simone Sørensen
Mar 12 at 6:41














aaaah now I understood what you meant and it worked!! thank you

– Simone Sørensen
Mar 12 at 7:06





aaaah now I understood what you meant and it worked!! thank you

– Simone Sørensen
Mar 12 at 7:06

















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