tracker issue : CF-4205211

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Title:

TypedArrayMethodReturnException incorrectly thrown for java.util.ArrayList (returned by <cfquery dbtype="hql")

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Status/Resolution/Reason: Open//

Reporter/Name(from Bugbase): Alexandre P. / ()

Created: 09/13/2019

Components: Language, Functions

Versions: 2018

Failure Type: Incorrect w/Workaround

Found In Build/Fixed In Build: 2018.0.04.314546 /

Priority/Frequency: Normal / Most users will encounter

Locale/System: / Win 2016

Vote Count: 1

Problem Description: 
 coldfusion.runtime.TypedArrayMethodReturnException is thrown when attempting to return an instance of java.util.ArrayList (e.g. resulting from <cfquery dbtype="hql") from a function that has a custom-component-typed-array returntype (e.g. type="SomeComponent[]"). Please note that the error occurs whether or not the ArrayList is empty.

Steps to Reproduce:

<cfdump var="#getItems()#">

<cffunction name="getItems" returntype="Item[]">
 <!--- Simulate ORM query result --->
 <cfset var items = createObject('java', 'java.util.ArrayList').init()>
 <cfreturn items>
 </cffunction>

Actual Result:

coldfusion.runtime.TypedArrayMethodReturnException: The value [] returned from the function getItems is not of declared type Item[].

at coldfusion.tagext.validation.CFTypedArrayValidator.validateWithType(CFTypedArrayValidator.java:117)

at coldfusion.runtime.UDFMethod.validateValueType(UDFMethod.java:210)

at coldfusion.runtime.UDFMethod.access$000(UDFMethod.java:52)

at coldfusion.runtime.UDFMethod$ReturnTypeFilter.invoke(UDFMethod.java:504)

at coldfusion.runtime.UDFMethod$ArgumentCollectionFilter.invoke(UDFMethod.java:447)

at coldfusion.filter.FunctionAccessFilter.invoke(FunctionAccessFilter.java:95)

at coldfusion.runtime.UDFMethod.runFilterChain(UDFMethod.java:398)

at coldfusion.runtime.UDFMethod.runFilterChain(UDFMethod.java:371)

at coldfusion.runtime.UDFMethod.invoke(UDFMethod.java:287)

at coldfusion.runtime.CfJspPage._invokeUDF(CfJspPage.java:3928)

at coldfusion.runtime.CfJspPage._invokeUDF(CfJspPage.java:3908)

at cfindex2ecfm1292838484.runPage(D:\inetpub\wwwroot@users\axp058\migration_tests\bugs_and_breaking\orm_typed_array\index.cfm:1)

at coldfusion.runtime.CfJspPage.invoke(CfJspPage.java:262)

at coldfusion.tagext.lang.IncludeTag.handlePageInvoke(IncludeTag.java:729)

at coldfusion.tagext.lang.IncludeTag.doStartTag(IncludeTag.java:565)

at coldfusion.filter.CfincludeFilter.invoke(CfincludeFilter.java:65)

at coldfusion.filter.ApplicationFilter.invoke(ApplicationFilter.java:597)

at coldfusion.filter.RequestMonitorFilter.invoke(RequestMonitorFilter.java:43)

at coldfusion.filter.MonitoringFilter.invoke(MonitoringFilter.java:40)

at coldfusion.filter.PathFilter.invoke(PathFilter.java:162)

at coldfusion.filter.IpFilter.invoke(IpFilter.java:45)

at coldfusion.filter.ExceptionFilter.invoke(ExceptionFilter.java:96)

at coldfusion.filter.BrowserDebugFilter.invoke(BrowserDebugFilter.java:78)

at coldfusion.filter.ClientScopePersistenceFilter.invoke(ClientScopePersistenceFilter.java:28)

at coldfusion.filter.BrowserFilter.invoke(BrowserFilter.java:38)

at coldfusion.filter.NoCacheFilter.invoke(NoCacheFilter.java:60)

at coldfusion.filter.GlobalsFilter.invoke(GlobalsFilter.java:38)

at coldfusion.filter.DatasourceFilter.invoke(DatasourceFilter.java:22)

at coldfusion.filter.CachingFilter.invoke(CachingFilter.java:62)

at coldfusion.CfmServlet.service(CfmServlet.java:226)

at coldfusion.bootstrap.BootstrapServlet.service(BootstrapServlet.java:311)

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)

at coldfusion.monitor.event.MonitoringServletFilter.doFilter(MonitoringServletFilter.java:46)

at coldfusion.bootstrap.BootstrapFilter.doFilter(BootstrapFilter.java:47)

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)

at coldfusion.inspect.weinre.MobileDeviceDomInspectionFilter.doFilter(MobileDeviceDomInspectionFilter.java:57)

at coldfusion.bootstrap.BootstrapFilter.doFilter(BootstrapFilter.java:47)

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)

at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)

at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:199)

at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)

at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:491)

at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139)

at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92)

at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87)

at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:357)

at org.apache.coyote.ajp.AjpProcessor.service(AjpProcessor.java:422)

at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)

at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:764)

at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1388)

at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)

at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)

at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)

at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)

at java.base/java.lang.Thread.run(Thread.java:834)

Expected Result: No error should be thrown, whether the ArrayList is empty OR contains the expected component instance type.

Any Workarounds:

Convert the ArrayList to an instance of coldfusion.runtime.Array:

<cfreturn items[:]> <!--- E.g. convert by slicing, arrayMap, etc. --->

Attachments:

Comments:

Please note that `type="hql"` should be `dbtype="hql"` in the title & description. Haven't found a way to edit.
Comment by Alexandre P.
31334 | September 13, 2019 07:06:01 PM GMT