视图选择框不显示视图

A表单中有一个视图选择框，用来选择映射保存id。
当我前台点击视图选择框的时候，弹出视图选择框里没有数据；当我把视图选择框对应的视图放到菜单里前台显示的时候，显示数据正常。
后台报错如下：
java.lang.IllegalStateException
15:40:39,852 DEBUG SelectField:183 - SelectField.recalculate
        at org.apache.catalina.connector.ResponseFacade.sendError(ResponseFacade.java:407)
        at org.apache.struts2.dispatcher.Dispatcher.sendError(Dispatcher.java:906)
        at org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:583)
        at org.apache.struts2.dispatcher.ng.ExecuteOperations.executeAction(ExecuteOperations.java:77)
        at org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.doFilter(StrutsPrepareAndExecuteFilter.java:99)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
15:40:39,876 DEBUG InputField:354 - InputField.recalculate
        at cn.myapps.base.web.filter.PersistenceFilter.doFilter(PersistenceFilter.java:34)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at cn.myapps.base.web.filter.SecurityFilter.doFilter(SecurityFilter.java:199)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at cn.myapps.base.web.filter.EncodingFilter.doFilter(EncodingFilter.java:28)
15:40:39,899  INFO FormHelper:917 - Refresh FlowProcessPanel total times->49(ms)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
        at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
        at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
        at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)
        at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
        at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)
        at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:861)
        at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:606)
        at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
        at java.lang.Thread.run(Thread.java:662)
[Ljava.lang.String;@1d9dd5a7
java.lang.NullPointerException
        at cn.myapps.base.ejb.AbstractRunTimeProcessBean.getDataSource(AbstractRunTimeProcessBean.java:266)
        at cn.myapps.base.ejb.AbstractRunTimeProcessBean.getConnection(AbstractRunTimeProcessBean.java:310)
        at cn.myapps.core.dynaform.document.ejb.DocumentProcessBean.getDAO(DocumentProcessBean.java:925)
        at cn.myapps.protection.util.WarpProcessFactory$WarpDocumentProcessBean.getDAO(WarpProcessFactory.java:672)
        at cn.myapps.core.dynaform.document.ejb.DocumentProcessBean.doView(DocumentProcessBean.java:140)
        at cn.myapps.core.dynaform.view.action.ViewAction.setParent(ViewAction.java:996)
        at cn.myapps.core.dynaform.view.action.ViewAction.getSuccessResult(ViewAction.java:254)
        at cn.myapps.core.dynaform.view.action.ViewRunTimeAction.doDialogView(ViewRunTimeAction.java:214)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at com.opensymphony.xwork2.DefaultActionInvocation.invokeAction(DefaultActionInvocation.java:450)
        at com.opensymphony.xwork2.DefaultActionInvocation.invokeActionOnly(DefaultActionInvocation.java:289)
        at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:252)
        at org.apache.struts2.interceptor.debugging.DebuggingInterceptor.intercept(DebuggingInterceptor.java:256)
        at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
        at com.opensymphony.xwork2.interceptor.DefaultWorkflowInterceptor.doIntercept(DefaultWorkflowInterceptor.java:167)
        at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)
        at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
        at com.opensymphony.xwork2.validator.ValidationInterceptor.doIntercept(ValidationInterceptor.java:265)
        at org.apache.struts2.interceptor.validation.AnnotationValidationInterceptor.doIntercept(AnnotationValidationInterceptor.java:68)
        at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)

根据错误提示，可能是绑定的数据源有问题，检查一下绑定的数据源，测试一下连接是否成功。