[ https://issues.apache.org/jira/browse/ISIS-2232?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Daniel Keir Haywood updated ISIS-2232: -------------------------------------- Summary: Contributed properties (from service) throws NPE, due to mismatch in push/pop on the interaction execution graph. (was: Interaction's executionGraph should not be appended to during the render phase.) > Contributed properties (from service) throws NPE, due to mismatch in push/pop > on the interaction execution graph. > ----------------------------------------------------------------------------------------------------------------- > > Key: ISIS-2232 > URL: https://issues.apache.org/jira/browse/ISIS-2232 > Project: Isis > Issue Type: Improvement > Reporter: Daniel Keir Haywood > Assignee: Daniel Keir Haywood > Priority: Minor > Fix For: 2.0.0 > > > in the current HEAD (2.0.0-M3-SNAPSHOT), I am getting an NPE as the result of > the presence of this contributed action (nb: contributed from a service): > > {code:java} > public class SimpleObjects { > @Action(semantics = SemanticsOf.SAFE) > public SimpleObject search(final SimpleObject simpleObject) { > return simpleObject; > } > public List<SimpleObject> autoComplete0Search(final String search) { > return findByName(search); > } > ... > }{code} > > The NPE occurs in the stuff around Interaction's execution: > h3. Stack trace: > * java.lang.NullPointerException > * > * > org.apache.isis.applib.util.schema.MemberExecutionDtoUtils#metricsFor(MemberExecutionDtoUtils.java:77) > * > org.apache.isis.applib.services.iactn.Interaction$Execution$When#metricsFor(Interaction.java:640) > * > org.apache.isis.applib.services.iactn.Interaction$Execution$When#access$200(Interaction.java:582) > * > org.apache.isis.applib.services.iactn.Interaction$Execution$When$2#syncMetrics(Interaction.java:613) > * > org.apache.isis.applib.services.iactn.Interaction$Execution#syncMetrics(Interaction.java:660) > * > org.apache.isis.applib.services.iactn.Interaction$Execution#setCompletedAt(Interaction.java:503) > * org.apache.isis.applib.services.iactn.Interaction#pop(Interaction.java:246) > * > org.apache.isis.applib.services.iactn.Interaction#executeInternal(Interaction.java:193) > * > org.apache.isis.applib.services.iactn.Interaction#execute(Interaction.java:142) > * > org.apache.isis.metamodel.facets.actions.action.invocation.ActionInvocationFacetForDomainEventAbstract#doInvoke(ActionInvocationFacetForDomainEventAbstract.java:208) > * > org.apache.isis.metamodel.facets.actions.action.invocation.ActionInvocationFacetForDomainEventAbstract#lambda$invoke$0(ActionInvocationFacetForDomainEventAbstract.java:129) > * > org.apache.isis.runtime.services.xactn.TransactionServiceSpring#executeWithinTransaction(TransactionServiceSpring.java:149) > * > org.apache.isis.metamodel.facets.actions.action.invocation.ActionInvocationFacetForDomainEventAbstract#invoke(ActionInvocationFacetForDomainEventAbstract.java:128) > * > org.apache.isis.metamodel.specloader.specimpl.ObjectActionDefault#executeInternal(ObjectActionDefault.java:423) > * > org.apache.isis.metamodel.specloader.specimpl.ObjectActionDefault#execute(ObjectActionDefault.java:409) > * > org.apache.isis.metamodel.specloader.specimpl.OneToOneAssociationContributee#get(OneToOneAssociationContributee.java:117) > * > org.apache.isis.viewer.wicket.model.models.ScalarModel#setObjectFromPropertyIfVisible(ScalarModel.java:761) > * > org.apache.isis.viewer.wicket.model.models.ScalarModel#access$200(ScalarModel.java:83) > * > org.apache.isis.viewer.wicket.model.models.ScalarModel$Kind$1#reset(ScalarModel.java:315) > * > org.apache.isis.viewer.wicket.model.models.ScalarModel$Kind$1#init(ScalarModel.java:305) > * > org.apache.isis.viewer.wicket.model.models.ScalarModel#init(ScalarModel.java:729) > * > org.apache.isis.viewer.wicket.model.models.ScalarModel#<init>(ScalarModel.java:724) > * > org.apache.isis.viewer.wicket.model.models.EntityModel#getPropertyModel(EntityModel.java:367) > * > org.apache.isis.viewer.wicket.ui.components.entity.fieldset.PropertyGroup#addPropertyToForm(PropertyGroup.java:215) > * > org.apache.isis.viewer.wicket.ui.components.entity.fieldset.PropertyGroup#buildGui(PropertyGroup.java:117) > * > org.apache.isis.viewer.wicket.ui.components.entity.fieldset.PropertyGroup#<init>(PropertyGroup.java:81) > > we can see that 'pop' is called but there's no execution to work upon; the > stack trace tells us that we're in the render phase and evaluating this > contributed property (as an action) to reset the model of the rendered entity. > -- This message was sent by Atlassian Jira (v8.3.4#803005)