GWT4NB and SpringFramework
 

Building a webapp with GWT 1.5RC1 and Spring Framework 2.5 using Netbeans 6.1 natively has a couple of issues related to the GWT4NB plugin:
 

The first issue is elegently solved by Lemnik Merrak by moving the post compile ant script in the build.xml file of the project.
 

The 2nd issue solved by adding as GWTCompiler parameter
 

The last issue requires the use of a Spring MVC controller and an post-compile extention.
 

For the following exemple the GWT project has for base gwt.sample.spring
 

<bean id="urlMapping" class="org.springframework.web.servlet.handler.SimpleUrlHandlerMapping">
   <property name="mappings">
      <props>
         ...other mvc controller
         <prop key="/gwt.sample.spring/*">gwtUrlFilenameController</prop>
      </props>
   </property>
</bean>
...
<!-- GWT Controller -->
    <bean id="gwtUrlFilenameController" class="net.creng.gwt.spring.GWTUrlFilenameViewController" />

package net.creng.gwt.spring;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.web.servlet.mvc.UrlFilenameViewController;

/**
 * Controller extention to add ".html" in order to preserve
 * the GWT mapping
 * 
 */
public class GWTUrlFilenameViewController extends UrlFilenameViewController {

    public final String CLASS_RELEASEID = "$Id: $";
    protected final Log log = LogFactory.getLog(getClass());
    /**
     * 
     * @param viewName
     * @return
     */
    @Override
    protected String postProcessViewName(String viewName) {
        viewName = viewName + ".html";
        log.debug("viewName: " + viewName);
        return viewName;
    }
}

The bold entries are the extentions to Lemnik's post

<target name="-post-compile">
    <property name="output.js" location="${build.web.dir}/${gwt.module}/${gwt.module}.nocache.js" />
</target>
<target name="-pre-dist">
    <condition property="gwt.compile.needed">
        <or>
            <not>
                <available file="${output.js}" />
            </not>
            <not>
                <uptodate>
                    <srcfiles dir="${src.dir}" includes="**/client/**/*.java" />
                    <mergemapper to="${output.js}" />
                </uptodate>
            </not>
        </or>
    </condition>
    <antcall target="do-gwt-compile" />
</target>
<target name="do-gwt-compile" if="gwt.compile.needed">  
    <!-- You can override this property in the 'gwt.properties' file -->
    <property name="gwt.compiler.output.style" value="OBFUSCATED"/>
    <property name="gwt.compiler.logLevel" value="WARN"/>
    <java classpath="${javac.classpath}:${src.dir}" failonerror="true" classname="com.google.gwt.dev.GWTCompiler" fork="true" maxmemory="512m">
        <jvmarg value="-Xmx512m" /> <!-- extend memory -->
        <arg value="-out"/>
        <arg path="${build.web.dir}/"/>
        <arg value="-style"/>
        <arg value="${gwt.compiler.output.style}"/>
        <arg value="-logLevel"/>
        <arg value="${gwt.compiler.logLevel}"/>
        <arg value="${gwt.module}"/>
    </java>
    <property name="gwt.output.dir" value="${gwt.module}"/>
    <move todir="${build.web.dir}/${gwt.output.dir}">
        <fileset dir="${build.web.dir}/${gwt.module}"/>
    </move>
    <!--
    Move *.html files to WEB-INF/jsp as *.html.jsp
    -->
    <move todir="${webinf.dir}/jsp">
        <fileset dir="${build.web.dir}/${gwt.output.dir}">
            <include name="**/*.html"/>
        </fileset>
        <mapper type="glob" from="*" to="*.jsp"/>
    </move>        
</target>

Thats it for now