Hi,
I have problem with running development mode from GWT Eclipse plugin
version 1.3.2. I'm connecting to dev mode with Chrome. In logs I find
this:
[WARN] /com.test.Test/C43A8DC1E50D698B543BF589D0244ECC.cache.png
java.lang.NullPointerException
at
com.google.gwt.dev.shell.GWTShellServlet.doGetPublicFile(GWTShellServlet.java:
438)
at
com.google.gwt.dev.shell.GWTShellServlet.processFileRequest(GWTShellServlet.java:
184)
at
com.google.gwt.dev.shell.GWTShellServlet.doGet(GWTShellServlet.java:
132)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:707)
at
com.google.gwt.dev.shell.GWTShellServlet.service(GWTShellServlet.java:
292)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:
487)
at
org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:
362)
at
org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:
216)
at
org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:
181)
at
org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:
729)
at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:
405)
at
org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:
152)
at
org.mortbay.jetty.handler.RequestLogHandler.handle(RequestLogHandler.java:
49)
at
org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:
152)
at org.mortbay.jetty.Server.handle(Server.java:324)
at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:
505)
at org.mortbay.jetty.HttpConnection
$RequestHandler.headerComplete(HttpConnection.java:829)
at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:513)
at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:211)
at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:380)
at
org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:
395)
at org.mortbay.thread.QueuedThreadPool
$PoolThread.run(QueuedThreadPool.java:488)
As a result application starts but no images are shown. There is a
file with given name in location <project>/war/com.test.Test/
C43A8DC1E50D698B543BF589D0244ECC.cache.png. Compiler output folder set
in Eclipse: <project>/war/WEB-INF/classes.
I've looked into GWT code and found that
GWTShellServlet.doGetPublicFile invokes getShellWorkDirs() that in my
case wrongly returns null. getShellWorkDirs() looks for workdirs -
servletContext.getAttribute("com.google.gwt.dev.shell.workdirs"), but
attribute is not set. I've searched where
"com.google.gwt.dev.shell.workdirs" is used and found it only in
EmbeddedTomcatServer. I didn't found how is it set for Jetty.
My launch configuration looks like this:
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<launchConfiguration type="com.google.gdt.eclipse.suite.webapp">
<stringAttribute
key="com.google.gdt.eclipse.suiteMainTypeProcessor.PREVIOUSLY_SET_MAIN_TYPE_NAME"
value="com.google.gwt.dev.DevMode"/>
<booleanAttribute
key="com.google.gdt.eclipse.suiteWarArgumentProcessor.IS_WAR_FROM_PROJECT_PROPERTIES"
value="true"/>
<listAttribute key="com.google.gwt.eclipse.core.ENTRY_POINT_MODULES">
<listEntry value="com.test.Test"/>
</listAttribute>
<stringAttribute key="com.google.gwt.eclipse.core.URL"
value="com.test.Test/Test.html"/>
<listAttribute key="org.eclipse.debug.core.MAPPED_RESOURCE_PATHS">
<listEntry value="/test"/>
</listAttribute>
<listAttribute key="org.eclipse.debug.core.MAPPED_RESOURCE_TYPES">
<listEntry value="4"/>
</listAttribute>
<stringAttribute key="org.eclipse.jdt.launching.CLASSPATH_PROVIDER"
value="com.google.gwt.eclipse.core.moduleClasspathProvider"/>
<stringAttribute key="org.eclipse.jdt.launching.MAIN_TYPE"
value="com.google.gwt.dev.DevMode"/>
<stringAttribute key="org.eclipse.jdt.launching.PROGRAM_ARGUMENTS"
value="-remoteUI "${gwt_remote_ui_server_port}:${unique_id}"
-startupUrl com.test.Test/Test.html -logLevel INFO -port 8888 -war C:
\java\workspace\test\war com.test.Test"/>
<stringAttribute key="org.eclipse.jdt.launching.PROJECT_ATTR"
value="test"/>
<stringAttribute key="org.eclipse.jdt.launching.VM_ARGUMENTS" value="-
Xmx512m -Dgwt.nowarn.legacy.tools"/>
</launchConfiguration>
There was a similar thread some time ago, but nobody responded:
http://groups.google.com/group/google-web-toolkit/browse_thread/thread/739820505bfd8cdc/0fdde9b31e2e4b67
I was working with version 1.2.0 of plugin and everything was fine.
Maybe I've missed something, but I cannot run DevMode in a proper way.
Could you give me any advice what am I doing wrong?
Thanks in advance,
Marek.
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