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  • Issue with spring and web.xml and servlet dispatching

    I am encountering this error :
    Code:
     [WARN] Exception while dispatching incoming RPC call
    com.google.gwt.user.server.rpc.UnexpectedException: Service method 'public abstract void ne.projl.client.service.ProjService.testdao(java.lang.Integer) throws java.lang.IllegalArgumentException' threw an unexpected exception: java.lang.NullPointerException
        at com.google.gwt.user.server.rpc.RPC.encodeResponseForFailure(RPC.java:389)
    .
    .
    .
    Code:
    Caused by: java.lang.NullPointerException
        at ne.projl.server.AbstractDAO.findById(AbstractDAO.java:37)
    line 37 is : return getEntityManager().find(entityClass, id);

    Code:
    <beans xmlns="http://www.springframework.org/schema/beans"
        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p"
        xmlns:aop="http://www.springframework.org/schema/aop" xmlns:context="http://www.springframework.org/schema/context"
         xmlns:tx="http://www.springframework.org/schema/tx"
        xsi:schemaLocation="
                    http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd
                    http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
                    http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd
                    http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd">
    
        <context:annotation-config />
    
    <!DOCTYPE web-app PUBLIC
     "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
     "http://java.sun.com/dtd/web-app_2_3.dtd" >
    <web-app>
        <display-name>Geomajas GWT face example application</display-name>
        <context-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>
                classpath:org/geomajas/spring/geomajasContext.xml
                classpath:org/geomajas/plugin/rasterizing/DefaultRasterizedPipelines.xml
                WEB-INF/applicationContext.xml
    <!--            WEB-INF/applicationContext2.xml -->
    <!--            WEB-INF/layer*.xml -->
    <!--            WEB-INF/map*.xml -->
                WEB-INF/layerOsm.xml
                WEB-INF/mapOsm.xml
    <!--            WEB-INF/applicationContext2.xml -->
    
           </param-value>
        </context-param>
    
    
        <filter>
            <filter-name>CacheFilter</filter-name>
            <filter-class>org.geomajas.servlet.CacheFilter</filter-class>
        </filter>
    
        <filter-mapping>
            <filter-name>CacheFilter</filter-name>
            <url-pattern>*</url-pattern>
        </filter-mapping>
    
        <listener>
            <listener-class>org.geomajas.servlet.PrepareScanningContextListener</listener-class>
        </listener>
    
        <listener>
            <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
        </listener>
        <listener>
            <listener-class>org.springframework.web.context.request.RequestContextListener</listener-class>
        </listener>
    
        <servlet>
            <servlet-name>GeomajasServiceServlet</servlet-name>
            <servlet-class>org.geomajas.gwt.server.GeomajasServiceImpl</servlet-class>
        </servlet>
    
        <servlet>
            <servlet-name>dispatcher</servlet-name>
            <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
            <init-param>
                <param-name>contextConfigLocation</param-name>
                <param-value>classpath*:META-INF/geomajasWebContext.xml</param-value>
                <description>Spring Web-MVC specific (additional) context files.</description>
            </init-param>
            <load-on-startup>3</load-on-startup>
        </servlet>
    
    <!-- SpringGwt remote service servlet --> 
        <servlet>
            <servlet-name>springGwtRemoteServiceServlet</servlet-name>
            <servlet-class>org.spring4gwt.server.SpringGwtRemoteServiceServlet</servlet-class>
            <init-param>
            <param-name>contexConfigLocation</param-name>
            <param-value>WEB-INF/applicationContext2.xml</param-value>
            <description>j</description>
            </init-param>
        </servlet>
    
        <servlet-mapping>
            <servlet-name>GeomajasServiceServlet</servlet-name>
            <url-pattern>/showcase/geomajasService</url-pattern>
        </servlet-mapping>
    
        <servlet-mapping>
            <servlet-name>dispatcher</servlet-name>
            <url-pattern>/d/*</url-pattern>
        </servlet-mapping>
    
    
    
        <servlet-mapping>
            <servlet-name>springGwtRemoteServiceServlet</servlet-name>
            <url-pattern>/showcase/springGwtServices/test</url-pattern>
        </servlet-mapping>
    
        <welcome-file-list>
            <welcome-file>index.html</welcome-file>
        </welcome-file-list>
    
    </web-app>
    I have a feeling that what i declare in applicationContext2.xml is not detected because if i do not put context:component-scan base-package="ne.projl.*" /> in the applicationContext.xml ( without the 2) it does not detect my annotated serviceimpl. I'm new to spring so any clues/hints are appreciated

    Below is the content of the applicationContext2.xml

    Code:
    <beans xmlns="http://www.springframework.org/schema/beans"
        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p"
        xmlns:aop="http://www.springframework.org/schema/aop" xmlns:context="http://www.springframework.org/schema/context"
         xmlns:tx="http://www.springframework.org/schema/tx"
        xsi:schemaLocation="
                    http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd
                    http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
                    http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd
                    http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd">
    
        <context:annotation-config />
    
    <tx:annotation-driven transaction-manager="transactionManager" /> 
    <context:component-scan base-package="ne.projl.*" />
    <!--    <context:component-scan base-package="FULLY QUALIFIED" /> -->
    
    <bean class="org.springframework.orm.jpa.LocalEntityManagerFactoryBean" id="entityManagerFactory">
            <property name="persistenceUnitName" value="MyPUnit" />
        </bean>
    
        <bean class="org.springframework.orm.jpa.JpaTransactionManager" id="transactionManager">
            <property name="entityManagerFactory" ref="entityManagerFactory" />
        </bean>
    
    
    </beans>

  • #2
    Did i post in the wrong sub-forum?

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