java.lang.ClassCastException: java.util.ArrayList cannot be cast to ....CrExcessMaster

Question

My code is

private List find(String queryString) {
    final Query query = getSession().createQuery(queryString.intern());
    List resultSet = query.list();
    return resultSet;
}
@SuppressWarnings("rawtypes")
public List < CrExcessMaster > getExcessesWidget(String primaryCO) {
    List cifList = find("select cem.id.cifNumber from CrEntitymaster cem where cem.primaryCo='" + primaryCO + "'");
    List < CrExcessMaster > temp = null;
    for (int i = 0; i < cifList.size(); i++) {
        log.info("cifList in dao " + cifList);
        if (i == 0) {
            temp = find("from CrExcessMaster where cif='" + cifList.get(i) + "'");
        } else temp.add((CrExcessMaster) find("from CrExcessMaster where cif='" + cifList.get(i) + "'"));
    }
    return temp;
}

where crExcessMaster is a table and I need to display variable temp value... But when i try to call above returned value as below

public static FilteredUIExcessList formatCustomerExcessUiBean(List < CrExcessMaster > crExcessMasterList) {
if (crExcessMasterList != null) {
    FilteredUIExcessList filteredUIExcessList = new FilteredUIExcessList(); 
    < font color = red >
    for (CrExcessMaster crExcessMaster: crExcessMasterList) < /font>{
         ExcessUIBean excessUIBean = new ExcessUIBean();
         excessUIBean.setCurrency(crExcessMaster.getCurrency());
}

At the code highlighted in red, it is throwing classcast exception

java.lang.ClassCastException: java.util.ArrayList cannot be cast to cib.ecm.creditRisk.excessManagement.db.orm.CrExcessMaster

Full Stack trace is

java.lang.ClassCastException: java.util.ArrayList cannot be cast to cib.ecm.creditRisk.excessManagement.db.orm.CrExcessMaster at cib.ecm.creditRisk.excessManagement.web.uiFormatters.UIBeanFormatter.formatCustomerExcessUiBean(UIBeanFormatter.java:65) at cib.ecm.creditRisk.excessManagement.web.services.ExcessManagementUiService.getExcessesWidget(ExcessManagementUiService.java:52) at cib.ecm.creditRisk.excessManagement.web.action.ExcessListActionBean.getExcessesWidget(ExcessListActionBean.java:105) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at net.sourceforge.stripes.controller.DispatcherHelper$6.intercept(DispatcherHelper.java:442) at net.sourceforge.stripes.controller.ExecutionContext.proceed(ExecutionContext.java:158) at net.sourceforge.stripes.controller.BeforeAfterMethodInterceptor.intercept(BeforeAfterMethodInterceptor.java:113) at net.sourceforge.stripes.controller.ExecutionContext.proceed(ExecutionContext.java:155) at net.sourceforge.stripes.controller.ExecutionContext.wrap(ExecutionContext.java:74) at net.sourceforge.stripes.controller.DispatcherHelper.invokeEventHandler(DispatcherHelper.java:440) at net.sourceforge.stripes.controller.DispatcherServlet.invokeEventHandler(DispatcherServlet.java:285) at net.sourceforge.stripes.controller.DispatcherServlet.doPost(DispatcherServlet.java:167) at net.sourceforge.stripes.controller.DispatcherServlet.doGet(DispatcherServlet.java:67) at javax.servlet.http.HttpServlet.service(HttpServlet.java:707) at javax.servlet.http.HttpServlet.service(HttpServlet.java:820) at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511) at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1221) at net.sourceforge.stripes.controller.StripesFilter.doFilter(StripesFilter.java:246) at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1212) at cib.ecm.creditRisk.excessManagement.web.filter.HibernateSessionRequestFilter.doFilter(HibernateSessionRequestFilter.java:35) at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1212) at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:399) at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216) at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182) at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:766) at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:450) at org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:230) at org.mortbay.jetty.handler.HandlerCollection.handle(HandlerCollection.java:114) at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152) at org.mortbay.jetty.Server.handle(Server.java:326) at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:542) at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:928) at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:549) at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:212) at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404) at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:410) at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:582)

Are you sure you are passing `List` of `CrExcessMaster `to `formatCustomerExcessUiBean()` ? — AllTooSir, Apr 17 '13 at 16:10
yeah...i printed the values and it is of crexcessmaster list type — user2265200, Apr 17 '13 at 16:30

score 3 · Answer 1 · answered Apr 17 '13 at 16:33

The problem is this line:

} else temp.add((CrExcessMaster) find("from CrExcessMaster where cif='" + cifList.get(i) + "'"));

With this, you are adding a List to temp, wich is causing the ClassCastException later on. Instead of temp.add(), call temp.addAll().

java.lang.ClassCastException: java.util.ArrayList cannot be cast to ....CrExcessMaster

1 Answers1