从WAR调用EJB时​​的类转换

Question

我有耳朵和战争分开部署。在两个包中，我都将（EJB）接口作为jar附加。 JNDI正在查找端点，但我在方法调用期间遇到了类转换异常。是因为EJB返回的ObjectA附加到jar中的ear和war？ ObjectA被认为是一个不同的类，因为正在被两个不同的类加载器读取？服务器是tomee，ear是部署在app（在tomee.xml）文件夹中还是在webapps中进行战争？我应该从两个包中删除带有（ObjectA）的jar并将它放在tomee的lib文件夹中 - 这是唯一的选择吗？ 此致，Dawid。

stacktrace

07-Nov-2017 07:43:17.754 SEVERE [localhost-startStop-1] org.apache.catalina.core.StandardContext.listenerStart Exception sending context initialized event to listener instance of class org.oscm.ui.common.LoggerInitListener
 java.lang.ClassCastException: org.oscm.internal.vo.VOConfigurationSetting cannot be cast to org.oscm.internal.vo.VOConfigurationSetting
    at com.sun.proxy.$Proxy232.getVOConfigurationSetting(Unknown Source)
    at org.oscm.ui.common.LoggerInitListener.contextInitialized(LoggerInitListener.java:42)
    at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4727)
    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5189)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
    at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:752)
    at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:728)
    at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:734)
    at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:952)
    at org.apache.catalina.startup.HostConfig$DeployWar.run(HostConfig.java:1823)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at java.lang.Thread.run(Thread.java:745)

电话：

public class LoggerInitListener implements ServletContextListener {

    ...

    @Override
    public void contextDestroyed(ServletContextEvent sce) {
        ...
    }

    @Override
    public void contextInitialized(ServletContextEvent sce) {
        ConfigurationService service = getConfigurationService();
        filePath = service.getVOConfigurationSetting(
                ConfigurationKey.LOG_FILE_PATH, Configuration.GLOBAL_CONTEXT)
                .getValue();
        ...

    }

    ConfigurationService getConfigurationService() {
        return new ServiceLocator().findService(ConfigurationService.class);
    }

后端：

@Singleton
@Startup
@Local(ConfigurationServiceLocal.class)
@Remote(ConfigurationService.class)
@Interceptors({ ExceptionMapper.class })
@ConcurrencyManagement(ConcurrencyManagementType.CONTAINER)
@Lock(LockType.READ)
public class ConfigurationServiceBean
        implements ConfigurationService, ConfigurationServiceLocal {
...
    @Override
    public VOConfigurationSetting getVOConfigurationSetting(
            ConfigurationKey informationId, String contextId) {
        ConfigurationSetting setting = getConfigurationSetting(informationId,
                contextId);
        return ConfigurationSettingAssembler.toValueObject(setting);
    }
...
}

接口：

@Remote
public interface ConfigurationService {
    VOConfigurationSetting getVOConfigurationSetting(ConfigurationKey var1, String var2);

    void setConfigurationSetting(String var1, String var2);

    boolean isServiceProvider();

    boolean isPaymentInfoAvailable();
}