GWT development locked out

Hi there,

with my GWT application I ran into the problem that I can not run/debug anymore.

1. With DevMode I get this:
SLF4J: The requested version 1.6 by your slf4j binding is not compatible with [1.5.5, 1.5.6]
SLF4J: See http://www.slf4j.org/codes.html#version_mismatch for further details.
...
Caused by: java.lang.NoSuchMethodError: org.slf4j.helpers.MessageFormatter.arrayFormat(Ljava/lang/String;[Ljava/lang/Object;)Lorg/slf4j/helpers/FormattingTuple;
    at ch.qos.logback.classic.spi.LoggingEvent.getFormattedMessage(LoggingEvent.java:298)

The exception is caused by a log statement during the init process of my app. When I then click the launch URL I just get

HTTP ERROR: 503

I tried both logback as well as log4j12 binding. I scanned my entire classpath and tried all combinations of slf4j-api and binding versions. But I always get this error. To me it seems that either GWT or Jetty is shipped with an internal but obsolete slf4j version but I can not find it and track it down. I added a classloader breakpoint and can not see from where it loads the old version. However, he does not use the version I have put on my classpath.

I had a workaround with jetty-web.xml but this stopped to work so I am totally stuck here.

2. With SuperDevMode I get this:

workDir: C:\Users\hohwille\AppData\Local\Temp\gwt-codeserver-2916897945350199638.tmp
22:09:14.326 [main] DEBUG org.eclipse.jetty.util.log - Logging to Logger[org.eclipse.jetty.util.log] via org.eclipse.jetty.util.log.Slf4jLog
binding: user.agent=safari
binding: compiler.useSourceMaps=true
binding: locale=en
Compiling module net.sf.mmm.app.Mmm
   Validating units:
      Ignored 21 units with compilation errors in first pass.
Compile with -strict or with -logLevel set to TRACE or DEBUG to see all errors.
   Finding entry point classes
      [ERROR] Unable to find type 'net.sf.mmm.app.client.Mmm'
         [ERROR] Hint: Check that the type name 'net.sf.mmm.app.client.Mmm' is really what you meant
         [ERROR] Hint: Check that your classpath includes all required source roots
[ERROR] Compiler returned false
com.google.gwt.core.ext.UnableToCompleteException: (see previous log entries)
    at com.google.gwt.dev.codeserver.Recompiler.compile(Recompiler.java:128)
    at com.google.gwt.dev.codeserver.ModuleState.<init>(ModuleState.java:58)
    at com.google.gwt.dev.codeserver.CodeServer.makeModules(CodeServer.java:120)
    at com.google.gwt.dev.codeserver.CodeServer.start(CodeServer.java:95)
    at com.google.gwt.dev.codeserver.CodeServer.main(CodeServer.java:71)
    at com.google.gwt.dev.codeserver.CodeServer.main(CodeServer.java:49)

My launch config is as following:

<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<launchConfiguration type="org.eclipse.jdt.launching.localJavaApplication">
<listAttribute key="org.eclipse.debug.core.MAPPED_RESOURCE_PATHS">
<listEntry value="/mmm-app-war"/>
</listAttribute>
<listAttribute key="org.eclipse.debug.core.MAPPED_RESOURCE_TYPES">
<listEntry value="4"/>
</listAttribute>
<booleanAttribute key="org.eclipse.jdt.launching.ATTR_USE_START_ON_FIRST_THREAD" value="true"/>
<stringAttribute key="org.eclipse.jdt.launching.CLASSPATH_PROVIDER" value="org.eclipse.m2e.launchconfig.classpathProvider"/>
<stringAttribute key="org.eclipse.jdt.launching.MAIN_TYPE" value="com.google.gwt.dev.codeserver.CodeServer"/>
<stringAttribute key="org.eclipse.jdt.launching.PROGRAM_ARGUMENTS" value="-port 9999 net.sf.mmm.app.Mmm"/>
<stringAttribute key="org.eclipse.jdt.launching.PROJECT_ATTR" value="mmm-app-war"/>
<stringAttribute key="org.eclipse.jdt.launching.SOURCE_PATH_PROVIDER" value="org.eclipse.m2e.launchconfig.sourcepathProvider"/>
<stringAttribute key="org.eclipse.jdt.launching.VM_ARGUMENTS" value="-XX:MaxPermSize=256m -Xmx512m"/>
</launchConfiguration>

Any ideas? I spend ~2 years of development to create a large OSS client application framework based on GWT.

As I am totally stuck now and read messages about dropping support of DevMode and browser plugins I feel very much lost in space :(

Any help is very much appreciated...

Thanks

  Jörg

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