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https://issues.apache.org/jira/browse/ISIS-966?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Dan Haywood resolved ISIS-966.
------------------------------
Resolution: Fixed
Fix Version/s: (was: core-1.9.0)
core-1.8.0
> Restful viewer doesn't return a JSON representation when hits a 500
> internally (instead getting an HTML page)
> -------------------------------------------------------------------------------------------------------------
>
> Key: ISIS-966
> URL: https://issues.apache.org/jira/browse/ISIS-966
> Project: Isis
> Issue Type: Bug
> Components: Core: Viewer: RestfulObjects
> Affects Versions: core-1.7.0
> Reporter: Dan Haywood
> Assignee: Dan Haywood
> Priority: Minor
> Fix For: core-1.8.0
>
>
> originally raised on the dev mailing list by Erik de Hair...
> ~~~
> I've reproduce the issue, by introducing a deliberate bug in the todo app,
> changing one of the queries in ToDoItem:
> @javax.jdo.annotations.Query(
> name = "findByOwnedByAndCompleteIsFalse", language = "JDOQL",
> value = "SELECT "
> + "FROM dom.todo.ToDoItem "
> + "WHERE ownedBy == :ownedBy "
> + " && complete = false"),
> where "complete == false" has been changed to "complete = false".
> In the Wicket viewer - as hoped - I got the error page with a big nasty
> stacktrace that included:
> javax.jdo.JDOUserException
> Invalid operator "=". Did you mean to use "=="?
> org.datanucleus.api.jdo.NucleusJDOHelper#getJDOExceptionForNucleusException(NucleusJDOHelper.java:549)
> org.datanucleus.api.jdo.JDOQuery#executeWithMap(JDOQuery.java:351)
> org.apache.isis.objectstore.jdo.datanucleus.persistence.queries.PersistenceQueryFindUsingApplibQueryProc
> In the Restful viewer, when I invoked
> http://localhost:8080/restful/services/ToDoItems/actions/notYetComplete/invoke
> I got something an HTML error:
> HTTP ERROR 500
> Problem accessing /restful/services/ToDoItems/actions/notYetComplete/invoke.
> Reason:
> javax.jdo.JDOUserException: Invalid operator "=". Did you mean to use
> "=="?
> NestedThrowables:
> org.datanucleus.store.query.QueryCompilerSyntaxException: Invalid operator
> "=". Did you mean to use "=="?
> Caused by:
> org.apache.isis.core.commons.exceptions.IsisException:
> javax.jdo.JDOUserException: Invalid operator "=". Did you mean to use "=="?
> NestedThrowables:
> org.datanucleus.store.query.QueryCompilerSyntaxException: Invalid operator
> "=". Did you mean to use "=="?
> at
> org.apache.isis.core.runtime.system.transaction.IsisTransactionManager.executeWithinTransaction(IsisTransactionManager.java:217)
> at
> org.apache.isis.core.runtime.transaction.facets.ActionInvocationFacetWrapTransaction.invoke(ActionInvocationFacetWrapTransaction.java:54)
> at
> org.apache.isis.core.metamodel.specloader.specimpl.ObjectActionImpl.execute(ObjectActionImpl.java:367)
> at
> org.apache.isis.viewer.restfulobjects.server.resources.DomainResourceHelper.invokeActionUsingAdapters(DomainResourceHelper.java:306)
> at
> org.apache.isis.viewer.restfulobjects.server.resources.DomainResourceHelper.invokeActionQueryOnly(DomainResourceHelper.java:251)
> at
> org.apache.isis.viewer.restfulobjects.server.resources.DomainServiceResourceServerside.invokeActionQueryOnly(DomainServiceResourceServerside.java:165)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> ~~~~
> So, I think the issue is that the Restful viewer, although it's throwing a
> 500 response error as expected, is also returning HTML rather than JSON error
> page.
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