Newbie question

[Stev]

hallo,

i just follow/download the source code from :
http://www.javaworld.com/javaworld/jw-12-2006/jw-1213-gwt.html

after i run under eclipse i got this error:
[WARN] StandardContext[]Exception while dispatching incoming RPC call
com.google.gwt.user.server.rpc.UnexpectedException: Service method
'public abstract com.blueXMLcom.blueXMLpackage.client.Book[]
com.blueXMLcom.blueXMLpackage.client.SearchService.getBooks(java.lang.String,int,int)'
threw an unexpected exception: java.lang.NoClassDefFoundError: org/
apache/commons/codec/DecoderException
at
com.google.gwt.user.server.rpc.RPC.encodeResponseForFailure(RPC.java:
361)
at
com.google.gwt.user.server.rpc.RPC.invokeAndEncodeResponse(RPC.java:
547)
at
com.google.gwt.user.server.rpc.RemoteServiceServlet.processCall(RemoteServiceServlet.java:
265)
at
com.google.gwt.user.server.rpc.RemoteServiceServlet.doPost(RemoteServiceServlet.java:
187)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:709)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
at
com.google.gwt.dev.shell.GWTShellServlet.service(GWTShellServlet.java:
253)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:
237)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:
157)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:
214)
Caused by: java.lang.NoClassDefFoundError: org/apache/commons/codec/
DecoderException
at
org.apache.commons.httpclient.HttpMethodBase.<init>(HttpMethodBase.java:
217)
at
org.apache.commons.httpclient.methods.GetMethod.<init>(GetMethod.java:
88)
at
com.blueXMLcom.blueXMLpackage.server.SearchServiceImpl.getBookListXMLDocument(SearchServiceImpl.java:
152)
at
com.blueXMLcom.blueXMLpackage.server.SearchServiceImpl.getBooks(SearchServiceImpl.java:
74)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:
39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:
25)
at java.lang.reflect.Method.invoke(Method.java:597)
at
com.google.gwt.user.server.rpc.RPC.invokeAndEncodeResponse(RPC.java:
528)
at
com.google.gwt.user.server.rpc.RemoteServiceServlet.processCall(RemoteServiceServlet.java:
265)
at
com.google.gwt.user.server.rpc.RemoteServiceServlet.doPost(RemoteServiceServlet.java:
187)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:709)

can sombody help me ?

thanx u be4,
Stev

[Ian Petersen]

Looks like your servlet can't find the Apache Commons JAR file. Maybe
you forgot to add it to the classpath, or maybe you missed adding it
to the servlet container's library directory.

Ian

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