प्राइमफ़ेस अपवाद जानकारी: java.lang.ArithmeticException:/शून्य java.lang.ArithmeticException:/शून्य से

Question

मैंने डेटाटेबल के लिए LazyLoading लागू किया है। जब मैं पेजिनेशन का उपयोग करके डेटाटेबल के माध्यम से चलाता हूं तो मुझे निम्नलिखित अपवाद मिल रहे हैं।

com.sun.faces.context.PartialViewContextImpl processPartial 
INFO: java.lang.ArithmeticException:/by zero 
java.lang.ArithmeticException:/by zero 
    at org.primefaces.model.LazyDataModel.setRowIndex(LazyDataModel.java:62) 
    at org.primefaces.component.api.UIData.setRowModel(UIData.java:411) 
    at org.primefaces.component.api.UIData.setRowIndex(UIData.java:403) 

ManagedBean

@PostConstruct 
    public LazyDataModel<Request> getLazyModel() { 
      if (lazyModel == null) { 
      lazyModel = new LazyDataModel<Request>() { 

      @Override 
      public List<Request> load(int startingAt, int maxPerPage, String sortField, 
         SortOrder sortOrder, Map<String, String> filters) { 
      return getRequestService().getRequest(startingAt, maxPerPage, sortField, sortOrder, filters); 
      } 
      }; 
      lazyModel.setRowCount(getRequestService().getRequestCount());   

      } 
      return lazyModel; 
     } 

JSF

<h:form> 
     <p:dataTable id="dataTable" var="req" lazy="true" value="#{reqMB.lazyModel}" 
      paginator="true" rows="10" 
      paginatorTemplate="{CurrentPageReport} {FirstPageLink} {PreviousPageLink} {PageLinks} {NextPageLink} {LastPageLink} {RowsPerPageDropdown}" 
      rowsPerPageTemplate="5,10,15"> 

पंक्ति संख्या प्राप्त करने के लिए डीएओ।

int count = ((Long)sessionFactory.getCurrentSession().createQuery 
("select count(*) from Request").uniqueResult()).intValue(); 

अद्यतन 1

com.sun.faces.context.PartialViewContextImpl processPartial 
INFO: java.lang.ArithmeticException:/by zero 
java.lang.ArithmeticException:/by zero 
    at org.primefaces.model.LazyDataModel.setRowIndex(LazyDataModel.java:62) 
    at org.primefaces.component.api.UIData.setRowModel(UIData.java:411) 
    at org.primefaces.component.api.UIData.setRowIndex(UIData.java:403) 
    at org.primefaces.component.api.UIData.processChildren(UIData.java:291) 
    at org.primefaces.component.api.UIData.processPhase(UIData.java:263) 
    at org.primefaces.component.api.UIData.processDecodes(UIData.java:229) 
    at com.sun.faces.context.PartialViewContextImpl$PhaseAwareVisitCallback.visit(PartialViewContextImpl.java:506) 
    at com.sun.faces.component.visit.PartialVisitContext.invokeVisitCallback(PartialVisitContext.java:183) 
    at org.primefaces.component.api.UIData.visitTree(UIData.java:641) 
    at javax.faces.component.UIComponent.visitTree(UIComponent.java:1601) 
    at javax.faces.component.UIForm.visitTree(UIForm.java:344) 
    at javax.faces.component.UIComponent.visitTree(UIComponent.java:1601) 
    at javax.faces.component.UIComponent.visitTree(UIComponent.java:1601) 
    at com.sun.faces.context.PartialViewContextImpl.processComponents(PartialViewContextImpl.java:376) 
    at com.sun.faces.context.PartialViewContextImpl.processPartial(PartialViewContextImpl.java:252) 
    at javax.faces.context.PartialViewContextWrapper.processPartial(PartialViewContextWrapper.java:183) 
    at javax.faces.component.UIViewRoot.processDecodes(UIViewRoot.java:931) 
    at com.sun.faces.lifecycle.ApplyRequestValuesPhase.execute(ApplyRequestValuesPhase.java:78) 
    at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101) 
    at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:118) 
    at javax.faces.webapp.FacesServlet.service(FacesServlet.java:593) 
    at weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:227) 
    at weblogic.servlet.internal.StubSecurityHelper.invokeServlet(StubSecurityHelper.java:125) 
    at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:301) 
    at weblogic.servlet.internal.TailFilter.doFilter(TailFilter.java:26) 
    at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56) 
    at weblogic.servlet.internal.RequestEventsFilter.doFilter(RequestEventsFilter.java:27) 
    at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56) 
    at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.wrapRun(WebAppServletContext.java:3730) 
    at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:3696) 
    at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321) 
    at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:120) 
    at weblogic.servlet.internal.WebAppServletContext.securedExecute(WebAppServletContext.java:2273) 
    at weblogic.servlet.internal.WebAppServletContext.execute(WebAppServletContext.java:2179) 
    at weblogic.servlet.internal.ServletRequestImpl.run(ServletRequestImpl.java:1490) 
    at weblogic.work.ExecuteThread.execute(ExecuteThread.java:256) 
    at weblogic.work.ExecuteThread.run(ExecuteThread.java:221) 

Answer 1

#23 in the issue tracker of primefaces टिप्पणी करने के लिए निम्नलिखित है कि समस्या

@Override 
public void setRowIndex(int rowIndex) { 
    /* 
    * The following is in ancestor (LazyDataModel): 
    * this.rowIndex = rowIndex == -1 ? rowIndex : (rowIndex % pageSize); 
    */ 
    if (rowIndex == -1 || getPageSize() == 0) { 
     super.setRowIndex(-1); 
    } 
    else 
     super.setRowIndex(rowIndex % getPageSize()); 
}