Roy Golan has submitted this change and it was merged. Change subject: scheduling: Use Optional instead of nulls for balancer results ...................................................................... scheduling: Use Optional instead of nulls for balancer results This patch converts most of the balancing return values from nullable Pair<...> to Optional<BalancingResult> with the goal of achieving better type safety. Change-Id: Id0f54389a72aad870b61d4b9f58ccac1efdda488 Signed-off-by: Martin Sivak <msivak(a)redhat.com&gt; --- M backend/manager/modules/bll/src/main/java/org/ovirt/engine/core/bll/scheduling/PolicyUnitImpl.java M backend/manager/modules/bll/src/main/java/org/ovirt/engine/core/bll/scheduling/SchedulingManager.java M backend/manager/modules/bll/src/main/java/org/ovirt/engine/core/bll/scheduling/external/BalanceResult.java M backend/manager/modules/bll/src/main/java/org/ovirt/engine/core/bll/scheduling/external/ExternalSchedulerBroker.java M backend/manager/modules/bll/src/main/java/org/ovirt/engine/core/bll/scheduling/external/ExternalSchedulerBrokerImpl.java M backend/manager/modules/bll/src/main/java/org/ovirt/engine/core/bll/scheduling/external/ExternalSchedulerBrokerObjectBuilder.java M backend/manager/modules/bll/src/main/java/org/ovirt/engine/core/bll/scheduling/external/ExternalSchedulerDiscovery.java M backend/manager/modules/bll/src/main/java/org/ovirt/engine/core/bll/scheduling/policyunits/CpuAndMemoryBalancingPolicyUnit.java M backend/manager/modules/bll/src/main/java/org/ovirt/engine/core/bll/scheduling/policyunits/HaReservationBalancePolicyUnit.java M backend/manager/modules/bll/src/main/java/org/ovirt/engine/core/bll/scheduling/policyunits/NoneBalancePolicyUnit.java M backend/manager/modules/bll/src/main/java/org/ovirt/engine/core/bll/scheduling/policyunits/PowerSavingBalancePolicyUnit.java M backend/manager/modules/bll/src/test/java/org/ovirt/engine/core/bll/scheduling/policyunits/EvenDistributionBalancePolicyUnitTest.java M backend/manager/modules/bll/src/test/java/org/ovirt/engine/core/bll/scheduling/policyunits/PowerSavingBalancePolicyUnitTest.java 13 files changed, 135 insertions(+), 101 deletions(-) Approvals: Martin Sivák: Verified Jenkins CI: Passed CI tests Roy Golan: Looks good to me, approved Jenny Tokar: Looks good to me, but someone else must approve -- To view, visit https://gerrit.ovirt.org/59401 To unsubscribe, visit https://gerrit.ovirt.org/settings Gerrit-MessageType: merged Gerrit-Change-Id: Id0f54389a72aad870b61d4b9f58ccac1efdda488 Gerrit-PatchSet: 14 Gerrit-Project: ovirt-engine Gerrit-Branch: master Gerrit-Owner: Martin Sivák <msivak(a)redhat.com&gt; Gerrit-Reviewer: Andrej Krejcir <akrejcir(a)redhat.com&gt; Gerrit-Reviewer: Jenkins CI Gerrit-Reviewer: Jenny Tokar <jtokar(a)redhat.com&gt; Gerrit-Reviewer: Martin Sivák <msivak(a)redhat.com&gt; Gerrit-Reviewer: Phillip Bailey <phbailey(a)redhat.com&gt; Gerrit-Reviewer: Roman Mohr <rmohr(a)redhat.com&gt; Gerrit-Reviewer: Roy Golan <rgolan(a)redhat.com&gt; Gerrit-Reviewer: Yanir Quinn <yquinn(a)redhat.com&gt; Gerrit-Reviewer: gerrit-hooks <automation(a)ovirt.org&gt;