anchor.diff:  <org.kie.server.api.model.instance.SolverInstanceList>
     <solvers>
       <solver-instance>
  -      <container-id>optacloud-kiecontainer-1</container-id>
  -      <solver-id>solver2</solver-id>
  -      <solver-config-file>optacloud/optacloud/cloudSolverConfig2.solver.xml</solver-config-file>
  +      <container-id>employee-rostering</container-id>
  +      <solver-id>solver1</solver-id>
  +      <solver-config-file>employeerostering/employeerostering/EmployeeRosteringSolverConfig.solver.xml</solver-config-file>
         <status>NOT_SOLVING</status>
  -      <score />
  -    </solver-instance>
  -    <solver-instance>
  -      <container-id>optacloud-kiecontainer-1</container-id>
  -      <solver-id>solver1</solver-id>
  -      <solver-config-file>optacloud/optacloud/cloudSolverConfig.solver.xml</solver-config-file>
  -      <status>NOT_SOLVING</status>
  -      <score />
  +      <score/>
       </solver-instance>
     </solvers>
   </org.kie.server.api.model.instance.SolverInstanceList>
  +
   ----
   ====
   
  
positive.code: [source,xml]
  ----
  <solver-instance>
    <container-id>optacloud-kiecontainer-1</container-id>
    <solver-id>solver1</solver-id>
    <solver-config-file>optacloud/optacloud/cloudSolverConfig.solver.xml</solver-config-file>
    <status>NOT_SOLVING</status>
    <score />
  </solver-instance>
  ----
  ====
  
  
negative.code: [source,xml]
  ----
  <solver-instance>
    <container-id>employee-rostering</container-id>
    <solver-id>solver1</solver-id>
    <solver-config-file>employeerostering/employeerostering/EmployeeRosteringSolverConfig.solver.xml</solver-config-file>
    <status>NOT_SOLVING</status>
    <score scoreClass="org.optaplanner.core.api.score.buildin.hardsoft.HardSoftScore">0hard/0soft</score>
    <best-solution class="employeerostering.employeerostering.EmployeeRoster">
      <employeeList>
        <employeerostering.employeerostering.Employee>
          <name>John</name>
          <skills>
            <employeerostering.employeerostering.Skill>
              <name>reading</name>
            </employeerostering.employeerostering.Skill>
          </skills>
        </employeerostering.employeerostering.Employee>
        <employeerostering.employeerostering.Employee>
          <name>Mary</name>
          <skills>
            <employeerostering.employeerostering.Skill>
              <name>writing</name>
            </employeerostering.employeerostering.Skill>
          </skills>
        </employeerostering.employeerostering.Employee>
        <employeerostering.employeerostering.Employee>
          <name>Petr</name>
          <skills>
            <employeerostering.employeerostering.Skill>
              <name>speaking</name>
            </employeerostering.employeerostering.Skill>
          </skills>
        </employeerostering.employeerostering.Employee>
      </employeeList>
      <shiftList>
        <employeerostering.employeerostering.Shift>
          <timeslot>
            <startTime>2017-01-01T00:00:00</startTime>
            <endTime>2017-01-01T01:00:00</endTime>
          </timeslot>
          <requiredSkill reference="../../../employeeList/employeerostering.employeerostering.Employee/skills/employeerostering.employeerostering.Skill"/>
        </employeerostering.employeerostering.Shift>
        <employeerostering.employeerostering.Shift>
          <timeslot reference="../../employeerostering.employeerostering.Shift/timeslot"/>
          <requiredSkill reference="../../../employeeList/employeerostering.employeerostering.Employee[3]/skills/employeerostering.employeerostering.Skill"/>
        </employeerostering.employeerostering.Shift>
        <employeerostering.employeerostering.Shift>
          <timeslot reference="../../employeerostering.employeerostering.Shift/timeslot"/>
          <requiredSkill reference="../../../employeeList/employeerostering.employeerostering.Employee[2]/skills/employeerostering.employeerostering.Skill"/>
        </employeerostering.employeerostering.Shift>
      </shiftList>
      <skillList>
        <employeerostering.employeerostering.Skill reference="../../employeeList/employeerostering.employeerostering.Employee/skills/employeerostering.employeerostering.Skill"/>
        <employeerostering.employeerostering.Skill reference="../../employeeList/employeerostering.employeerostering.Employee[3]/skills/employeerostering.employeerostering.Skill"/>
        <employeerostering.employeerostering.Skill reference="../../employeeList/employeerostering.employeerostering.Employee[2]/skills/employeerostering.employeerostering.Skill"/>
      </skillList>
      <timeslotList>
        <employeerostering.employeerostering.Timeslot reference="../../shiftList/employeerostering.employeerostering.Shift/timeslot"/>
      </timeslotList>
      <dayOffRequestList/>
      <shiftAssignmentList/>
      <score>0hard/0soft</score>
    </best-solution>
  </solver-instance>
  
  ----
  ====
  
  