2016-10-27 02:01:02,849 ERROR [org.ovirt.engine.core.bll.RunVmOnceCommand] (default task-17) [78897d21] Command 'org.ovirt.engine.core.bll.RunVmOnceCommand' failed: HV000186: The constraint of type 'javax.valida
tion.constraints.NotNull' defined on 'schedule.<return value>' has multiple matching constraint validators which is due to an additional value handler of type 'org.hibernate.validator.internal.engine.valuehandli
ng.OptionalValueUnwrapper'. It is unclear which value needs validating. Clarify configuration via @UnwrapValidatedValue.
2016-10-27 02:01:02,849 ERROR [org.ovirt.engine.core.bll.RunVmOnceCommand] (default task-17) [78897d21] Exception: javax.validation.UnexpectedTypeException: HV000186: The constraint of type 'javax.validation.con
straints.NotNull' defined on 'schedule.<return value>' has multiple matching constraint validators which is due to an additional value handler of type 'org.hibernate.validator.internal.engine.valuehandling.Optio
nalValueUnwrapper'. It is unclear which value needs validating. Clarify configuration via @UnwrapValidatedValue.
at org.hibernate.validator.internal.engine.constraintvalidation.ConstraintTree.getConstraintValidatorInstanceForAutomaticUnwrapping(ConstraintTree.java:266) [hibernate-validator-5.2.4.Final.jar:5.2.4.Fin
al]
at org.hibernate.validator.internal.engine.constraintvalidation.ConstraintTree.getInitializedConstraintValidator(ConstraintTree.java:163) [hibernate-validator-5.2.4.Final.jar:5.2.4.Final]
at org.hibernate.validator.internal.engine.constraintvalidation.ConstraintTree.validateConstraints(ConstraintTree.java:116) [hibernate-validator-5.2.4.Final.jar:5.2.4.Final]
at org.hibernate.validator.internal.engine.constraintvalidation.ConstraintTree.validateConstraints(ConstraintTree.java:87) [hibernate-validator-5.2.4.Final.jar:5.2.4.Final]
at org.hibernate.validator.internal.metadata.core.MetaConstraint.validateConstraint(MetaConstraint.java:73) [hibernate-validator-5.2.4.Final.jar:5.2.4.Final]
at org.hibernate.validator.internal.engine.ValidatorImpl.validateConstraintsForGroup(ValidatorImpl.java:1488) [hibernate-validator-5.2.4.Final.jar:5.2.4.Final]
at org.hibernate.validator.internal.engine.ValidatorImpl.validateReturnValueForSingleGroup(ValidatorImpl.java:1459) [hibernate-validator-5.2.4.Final.jar:5.2.4.Final]
at org.hibernate.validator.internal.engine.ValidatorImpl.validateReturnValueForGroup(ValidatorImpl.java:1422) [hibernate-validator-5.2.4.Final.jar:5.2.4.Final]
at org.hibernate.validator.internal.engine.ValidatorImpl.validateReturnValueInContext(ValidatorImpl.java:1338) [hibernate-validator-5.2.4.Final.jar:5.2.4.Final]
at org.hibernate.validator.internal.engine.ValidatorImpl.validateReturnValue(ValidatorImpl.java:317) [hibernate-validator-5.2.4.Final.jar:5.2.4.Final]
at org.hibernate.validator.internal.engine.ValidatorImpl.validateReturnValue(ValidatorImpl.java:277) [hibernate-validator-5.2.4.Final.jar:5.2.4.Final]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [rt.jar:1.8.0_111]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) [rt.jar:1.8.0_111]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) [rt.jar:1.8.0_111]
at java.lang.reflect.Method.invoke(Method.java:498) [rt.jar:1.8.0_111]
at org.jboss.weld.bean.proxy.AbstractBeanInstance.invoke(AbstractBeanInstance.java:38) [weld-core-impl-2.3.5.Final.jar:2.3.5.Final]
at org.jboss.weld.bean.proxy.ProxyMethodHandler.invoke(ProxyMethodHandler.java:100) [weld-core-impl-2.3.5.Final.jar:2.3.5.Final]
at org.jboss.weldx.validation.ExecutableValidator$Validator$976505265$Proxy$_$$_WeldClientProxy.validateReturnValue(Unknown Source)
at org.hibernate.validator.internal.cdi.interceptor.ValidationInterceptor.validateMethodInvocation(ValidationInterceptor.java:80) [hibernate-validator-cdi-5.2.4.Final.jar:5.2.4.Final]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [rt.jar:1.8.0_111]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) [rt.jar:1.8.0_111]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) [rt.jar:1.8.0_111]
at java.lang.reflect.Method.invoke(Method.java:498) [rt.jar:1.8.0_111]
at org.jboss.weld.interceptor.reader.SimpleInterceptorInvocation$SimpleMethodInvocation.invoke(SimpleInterceptorInvocation.java:74) [weld-core-impl-2.3.5.Final.jar:2.3.5.Final]
at org.jboss.weld.interceptor.proxy.InterceptorMethodHandler.executeAroundInvoke(InterceptorMethodHandler.java:84) [weld-core-impl-2.3.5.Final.jar:2.3.5.Final]
at org.jboss.weld.interceptor.proxy.InterceptorMethodHandler.executeInterception(InterceptorMethodHandler.java:72) [weld-core-impl-2.3.5.Final.jar:2.3.5.Final]
at org.jboss.weld.interceptor.proxy.InterceptorMethodHandler.invoke(InterceptorMethodHandler.java:56) [weld-core-impl-2.3.5.Final.jar:2.3.5.Final]
at org.jboss.weld.bean.proxy.CombinedInterceptorAndDecoratorStackMethodHandler.invoke(CombinedInterceptorAndDecoratorStackMethodHandler.java:79) [weld-core-impl-2.3.5.Final.jar:2.3.5.Final]
at org.jboss.weld.bean.proxy.CombinedInterceptorAndDecoratorStackMethodHandler.invoke(CombinedInterceptorAndDecoratorStackMethodHandler.java:68) [weld-core-impl-2.3.5.Final.jar:2.3.5.Final]
at org.ovirt.engine.core.bll.scheduling.SchedulingManager$Proxy$_$$_WeldSubclass.schedule(Unknown Source) [bll.jar:]
at org.ovirt.engine.core.bll.RunVmCommand.getVdsToRunOn(RunVmCommand.java:818) [bll.jar:]
at org.ovirt.engine.core.bll.RunVmCommand.runVm(RunVmCommand.java:231) [bll.jar:]
at org.ovirt.engine.core.bll.RunVmCommand.perform(RunVmCommand.java:414) [bll.jar:]
at org.ovirt.engine.core.bll.RunVmCommand.executeVmCommand(RunVmCommand.java:339) [bll.jar:]
at org.ovirt.engine.core.bll.VmCommand.executeCommand(VmCommand.java:106) [bll.jar:]