unable to omit optional entity identification variable from arguments to built-in aggregate functions

[njr-11]

When attempting to invoke aggregate functions in JPQL and supplying an argument that omits the optional entity identification variable, such as,

SELECT MAX(price) FROM Item
SELECT MIN(price) FROM Item
SELECT AVG(price) FROM Item

EclipseLink is rejecting the JPQL claiming there is a syntax error,

[6/27/24, 11:13:14:376 CDT] 00000038 id=2cd08492 io.openliberty.data.internal.persistence.RepositoryImpl      3 QueryInfo@3040180 float highestPrice() SELECT MAX(price) FROM Item
[6/27/24, 11:13:14:376 CDT] 00000038 id=03040180 io.openliberty.data.internal.persistence.QueryInfo           3 hasDynamicSortCriteria? false
[6/27/24, 11:13:14:376 CDT] 00000038 id=3fd0886d enliberty.data.internal.persistence.service.DBStoreEMBuilder > createEntityManager Entry 
[6/27/24, 11:13:14:376 CDT] 00000038 id=463b5cdd om.ibm.wsspi.persistence.internal.PersistenceServiceUnitImpl > createEntityManager Entry 
[6/27/24, 11:13:14:376 CDT] 00000038 id=463b5cdd om.ibm.wsspi.persistence.internal.PersistenceServiceUnitImpl < createEntityManager Exit  
                                                                                                               org.eclipse.persistence.internal.jpa.EntityManagerImpl@29754de5
[6/27/24, 11:13:14:376 CDT] 00000038 id=3fd0886d enliberty.data.internal.persistence.service.DBStoreEMBuilder < createEntityManager Exit  
                                                                                                               org.eclipse.persistence.internal.jpa.EntityManagerImpl@29754de5
[6/27/24, 11:13:14:376 CDT] 00000038 id=2cd08492 io.openliberty.data.internal.persistence.RepositoryImpl      3 createQuery 
                                                                                                               SELECT MAX(price) FROM Item
                                                                                                               test.jakarta.data.experimental.web.Item
[6/27/24, 11:13:14:380 CDT] 00000038 id=00000000 io.openliberty.data.internal.persistence.RepositoryImpl      3 java.lang.IllegalArgumentException replaced with jakarta.data.exceptions.MappingException
[6/27/24, 11:13:14:380 CDT] 00000038 id=2cd08492 io.openliberty.data.internal.persistence.RepositoryImpl      < invoke Items.highestPrice Exit  
                                                                                                               jakarta.data.exceptions.MappingException: java.lang.IllegalArgumentException: An exception occurred while creating a query in EntityManager: 
Exception Description: Syntax error parsing [SELECT MAX(price) FROM Item]. 
[11, 16] The encapsulated expression is not a valid expression.
	at io.openliberty.data.internal.persistence.RepositoryImpl.failure(RepositoryImpl.java:302)
	at io.openliberty.data.internal.persistence.RepositoryImpl.invoke(RepositoryImpl.java:1256)
	at jdk.proxy14/jdk.proxy14.$Proxy77.highestPrice(Unknown Source)
	at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103)
	at java.base/java.lang.reflect.Method.invoke(Method.java:580)
	at org.jboss.weld.bean.proxy.AbstractBeanInstance.invoke(AbstractBeanInstance.java:38)
	at org.jboss.weld.bean.proxy.ProxyMethodHandler.invoke(ProxyMethodHandler.java:109)
	at test.jakarta.data.experimental.web.Items$2034182489$Proxy$_$$_WeldClientProxy.highestPrice(Unknown Source)
	at test.jakarta.data.experimental.web.DataExperimentalServlet.testAggregateFunctions(DataExperimentalServlet.java:157)
	at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103)
	at java.base/java.lang.reflect.Method.invoke(Method.java:580)
	at componenttest.app.FATServlet.doGet(FATServlet.java:74)
	at jakarta.servlet.http.HttpServlet.service(HttpServlet.java:633)
	at jakarta.servlet.http.HttpServlet.service(HttpServlet.java:723)
	at com.ibm.ws.webcontainer.servlet.ServletWrapper.service(ServletWrapper.java:1266)
	at com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:754)
	at com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:451)
	at com.ibm.ws.webcontainer.filter.WebAppFilterManager.invokeFilters(WebAppFilterManager.java:1362)
	at com.ibm.ws.webcontainer.filter.WebAppFilterManager.invokeFilters(WebAppFilterManager.java:1078)
	at com.ibm.ws.webcontainer.servlet.CacheServletWrapper.handleRequest(CacheServletWrapper.java:77)
	at com.ibm.ws.webcontainer40.servlet.CacheServletWrapper40.handleRequest(CacheServletWrapper40.java:87)
	at com.ibm.ws.webcontainer.WebContainer.handleRequest(WebContainer.java:978)
	at com.ibm.ws.webcontainer.osgi.DynamicVirtualHost$2.run(DynamicVirtualHost.java:293)
	at com.ibm.ws.http.dispatcher.internal.channel.HttpDispatcherLink$TaskWrapper.run(HttpDispatcherLink.java:1260)
	at com.ibm.ws.http.dispatcher.internal.channel.HttpDispatcherLink.wrapHandlerAndExecute(HttpDispatcherLink.java:476)
	at com.ibm.ws.http.dispatcher.internal.channel.HttpDispatcherLink.ready(HttpDispatcherLink.java:435)
	at com.ibm.ws.http.channel.internal.inbound.HttpInboundLink.handleDiscrimination(HttpInboundLink.java:569)
	at com.ibm.ws.http.channel.internal.inbound.HttpInboundLink.handleNewRequest(HttpInboundLink.java:503)
	at com.ibm.ws.http.channel.internal.inbound.HttpInboundLink.processRequest(HttpInboundLink.java:363)
	at com.ibm.ws.http.channel.internal.inbound.HttpInboundLink.ready(HttpInboundLink.java:330)
	at com.ibm.ws.tcpchannel.internal.NewConnectionInitialReadCallback.sendToDiscriminators(NewConnectionInitialReadCallback.java:169)
	at com.ibm.ws.tcpchannel.internal.NewConnectionInitialReadCallback.complete(NewConnectionInitialReadCallback.java:77)
	at com.ibm.ws.tcpchannel.internal.WorkQueueManager.requestComplete(WorkQueueManager.java:516)
	at com.ibm.ws.tcpchannel.internal.WorkQueueManager.attemptIO(WorkQueueManager.java:586)
	at com.ibm.ws.tcpchannel.internal.WorkQueueManager.workerRun(WorkQueueManager.java:970)
	at com.ibm.ws.tcpchannel.internal.WorkQueueManager$Worker.run(WorkQueueManager.java:1059)
	at com.ibm.ws.threading.internal.ExecutorServiceImpl$RunnableWrapper.run(ExecutorServiceImpl.java:280)
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1144)
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:642)
	at java.base/java.lang.Thread.run(Thread.java:1583)
Caused by: java.lang.IllegalArgumentException: An exception occurred while creating a query in EntityManager: 
Exception Description: Syntax error parsing [SELECT MAX(price) FROM Item]. 
[11, 16] The encapsulated expression is not a valid expression.
	at org.eclipse.persistence.internal.jpa.EntityManagerImpl.createQuery(EntityManagerImpl.java:1848)
	at org.eclipse.persistence.internal.jpa.EntityManagerImpl.createQuery(EntityManagerImpl.java:1869)
	at io.openliberty.data.internal.persistence.RepositoryImpl.invoke(RepositoryImpl.java:871)
	... 38 more
Caused by: Exception [EclipseLink-0] (Eclipse Persistence Services - 5.0.0-B02.v202404111748): org.eclipse.persistence.exceptions.JPQLException
Exception Description: Syntax error parsing [SELECT MAX(price) FROM Item]. 
[11, 16] The encapsulated expression is not a valid expression.
	at org.eclipse.persistence.internal.jpa.jpql.HermesParser.buildException(HermesParser.java:169)
	at org.eclipse.persistence.internal.jpa.jpql.HermesParser.validate(HermesParser.java:345)
	at org.eclipse.persistence.internal.jpa.jpql.HermesParser.populateQueryImp(HermesParser.java:292)
	at org.eclipse.persistence.internal.jpa.jpql.HermesParser.buildQuery(HermesParser.java:174)
	at org.eclipse.persistence.internal.jpa.EJBQueryImpl.buildEJBQLDatabaseQuery(EJBQueryImpl.java:144)
	at org.eclipse.persistence.internal.jpa.EJBQueryImpl.buildEJBQLDatabaseQuery(EJBQueryImpl.java:120)
	at org.eclipse.persistence.internal.jpa.EJBQueryImpl.<init>(EJBQueryImpl.java:107)
	at org.eclipse.persistence.internal.jpa.EJBQueryImpl.<init>(EJBQueryImpl.java:91)
	at org.eclipse.persistence.internal.jpa.EntityManagerImpl.createQuery(EntityManagerImpl.java:1846)
	... 40 more

[Riva-Tholoor-Philip]

See EclipseLink Issue : 2192