update from dev

Author: vlkong

src/test/java/com/ibm/ml/mp/Warehouse.java

@@ -5,6 +5,7 @@
 import com.typesafe.config.ConfigFactory;
 import ilog.concert.*;
 import ilog.cplex.*;
+import ilog.cplex.WmlCplex;
 
 public class Warehouse {
    static class SemiContGoal extends IloCplex.Goal {

src/test/resources/wml.cos.conf

@@ -16,7 +16,7 @@ service{
         space_id = "your space id"  // You can solve a model only through a space in WML.
         space_id = ${?WML_SPACE_ID} // or use an environment variable
 
-        version = "2020-08-07" // Mandatory WML field, must be provided. Any value is accepted so far.
+        version = "2021-06-01" // Mandatory WML field, must be provided. Any value is accepted so far.
         version = ${?WML_VERSION} // or use an environment variable
     }
       platform {

src/test/resources/wml.cpd.conf

@@ -16,7 +16,7 @@ service{
         space_id = "your space id"  // You can solve a model only through a space in WML.
         space_id = ${?CPD_SPACE_ID} // or use an environment variable
 
-        version = "2020-08-07" // Mandatory WML field, must be provided. Any value is accepted so far.
+        version = "2021-06-01" // Mandatory WML field, must be provided. Any value is accepted so far.
         version = ${?CPD_VERSION} // or use an environment variable
     }
 }

src/test/resources/wml.public.conf

@@ -16,7 +16,7 @@ service{
         space_id = "your space id"  // You can solve a model only through a space in WML.
         space_id = ${?WML_SPACE_ID} // or use an environment variable
 
-        version = "2020-08-07" // Mandatory WML field, must be provided. Any value is accepted so far.
+        version = "2021-06-01" // Mandatory WML field, must be provided. Any value is accepted so far.
         version = ${?WML_VERSION} // or use an environment variable
     }
       platform {