anchor.diff:  
   Now you are ready to put everything together and create a REST service.
   But solving planning problems on REST threads causes HTTP timeout issues.
  -Therefore, the Quarkus extension injects a `SolverManager`,
  +Therefore, the Quarkus extension injects a `SolverManager` instance,
   which runs solvers in a separate thread pool
   and can solve multiple datasets in parallel.
   
  
positive.code: ----
  
  Create the `src/test/java/org/acme/optaplanner/solver/TimeTableConstraintProviderTest.java` class:
  [source,java]
  ----
  package org.acme.optaplanner.solver;
  
negative.code: 
  Instead, create a `src/main/java/org/acme/optaplanner/solver/TimeTableConstraintProvider.java` class
  to perform incremental score calculation.
  It uses OptaPlanner's ConstraintStream API which is inspired by Java Streams and SQL:
  
  [source,java]
  ----
  