Re: Spring and GWT 1.6RC

Hi

It seems that the jarfile gwt-dev-windows.jar includes a lot of apache commons libraries.
which conflicts with jar files added in web-inf/lib that also uses the above commons libraries.


/Flemming

On Thu, Mar 19, 2009 at 9:08 PM, Flemming Boller <flemming.boller@gmail.com> wrote:

I can also confirm the above experience. "loader constraint violation"

/Flemming

On Thu, Mar 19, 2009 at 6:56 PM, magbyr <magbyr@gmail.com> wrote:

I tried creating a completely blank / new 1.6RC project. When I put
spring.jar and a blank applicationContext.xml the project stops
working.
Tried both with the spring context-listener and the spring servlet.

[WARN] failed springServlet
java.lang.LinkageError: loader constraint violation: loader (instance
of com/google/gwt/dev/shell/jetty/JettyLauncher$WebAppContextWithReload
$WebAppClassLoaderExtension) previously initiated loading for a
different type with name "org/apache/commons/logging/Log"
       at java.lang.ClassLoader.defineClass1(Native Method)
       at java.lang.ClassLoader.defineClass(ClassLoader.java:621)
       at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:
124)
       at java.net.URLClassLoader.defineClass(URLClassLoader.java:260)
       at java.net.URLClassLoader.access$000(URLClassLoader.java:56)
       at java.net.URLClassLoader$1.run(URLClassLoader.java:195)
       at java.security.AccessController.doPrivileged(Native Method)
       at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
       at com.google.gwt.dev.shell.jetty.JettyLauncher
$WebAppContextWithReload$WebAppClassLoaderExtension.findClass
(JettyLauncher.java:303)
       at org.mortbay.jetty.webapp.WebAppClassLoader.loadClass
(WebAppClassLoader.java:366)
       at org.mortbay.jetty.webapp.WebAppClassLoader.loadClass
(WebAppClassLoader.java:337)
       at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320)
       at
org.springframework.core.CollectionFactory.createConcurrentMapIfPossible
(CollectionFactory.java:195)
       at org.springframework.web.context.ContextLoader.<clinit>
(ContextLoader.java:153)
       at
org.springframework.web.context.ContextLoaderServlet.createContextLoader
(ContextLoaderServlet.java:89)
       at org.springframework.web.context.ContextLoaderServlet.init
(ContextLoaderServlet.java:80)
       at javax.servlet.GenericServlet.init(GenericServlet.java:212)
       at org.mortbay.jetty.servlet.ServletHolder.initServlet
(ServletHolder.java:433)
       at org.mortbay.jetty.servlet.ServletHolder.doStart(ServletHolder.java:
256)
       at org.mortbay.component.AbstractLifeCycle.start
(AbstractLifeCycle.java:39)
       at org.mortbay.jetty.servlet.ServletHandler.initialize
(ServletHandler.java:616)
       at org.mortbay.jetty.servlet.Context.startContext(Context.java:140)
       at org.mortbay.jetty.webapp.WebAppContext.startContext
(WebAppContext.java:1220)
       at org.mortbay.jetty.handler.ContextHandler.doStart
(ContextHandler.java:513)
       at org.mortbay.jetty.webapp.WebAppContext.doStart(WebAppContext.java:
448)
       at com.google.gwt.dev.shell.jetty.JettyLauncher
$WebAppContextWithReload.doStart(JettyLauncher.java:397)
       at org.mortbay.component.AbstractLifeCycle.start
(AbstractLifeCycle.java:39)
       at org.mortbay.jetty.handler.HandlerWrapper.doStart
(HandlerWrapper.java:130)
       at org.mortbay.jetty.handler.RequestLogHandler.doStart
(RequestLogHandler.java:115)
       at org.mortbay.component.AbstractLifeCycle.start
(AbstractLifeCycle.java:39)
       at org.mortbay.jetty.handler.HandlerWrapper.doStart
(HandlerWrapper.java:130)
       at org.mortbay.jetty.Server.doStart(Server.java:222)
       at org.mortbay.component.AbstractLifeCycle.start
(AbstractLifeCycle.java:39)
       at com.google.gwt.dev.shell.jetty.JettyLauncher.start
(JettyLauncher.java:449)
       at com.google.gwt.dev.HostedMode.doStartUpServer(HostedMode.java:367)
       at com.google.gwt.dev.HostedModeBase.startUp(HostedModeBase.java:590)
       at com.google.gwt.dev.HostedModeBase.run(HostedModeBase.java:397)
       at com.google.gwt.dev.HostedMode.main(HostedMode.java:232)

On 19 Mar, 15:28, magbyr <mag...@gmail.com> wrote:

> I'm having a problem with 1.6RC / Jetty and Spring 2.5. Same project
> worked well on 1.5.3, but not on 1.6RC.
>
> Fails on jsp and default servlet from Jetty:
> javax.servlet.UnavailableException: Servlet class
> org.apache.jasper.servlet.JspServlet is not a javax.servlet.Servlet
> javax.servlet.UnavailableException: Servlet class
> org.mortbay.jetty.servlet.DefaultServlet is not a
> javax.servlet.Servlet
>
> Seems like some kind of classloader issue.
>
> Anybody running 1.6RC with Spring successfully?

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