Uses checkElementIndex

Author: manleviet

.idea/misc.xml

@@ -18,6 +18,9 @@
 import java.util.List;
 import java.util.Objects;
 
+import static com.google.common.base.Preconditions.checkArgument;
+import static com.google.common.base.Preconditions.checkElementIndex;
+
 @Getter
 @Slf4j
 public class Constraint {
@@ -33,9 +36,13 @@ public Constraint(@NonNull String constraint) {
         log.trace("{}Created Constraint [cstr={}]", LoggerUtils.tab, constraint);
     }
 
-    public void addChocoConstraints(Model model, int startIdx, int endIdx, boolean hasNegativeConstraints) {
+    public void addChocoConstraints(@NonNull Model model, int startIdx, int endIdx, boolean hasNegativeConstraints) {
         org.chocosolver.solver.constraints.Constraint[] constraints = model.getCstrs();
 
+        checkElementIndex(startIdx, constraints.length, "startIdx must be within the range of constraints");
+        checkElementIndex(endIdx, constraints.length, "endIdx must be within the range of constraints");
+        checkArgument(startIdx <= endIdx, "startIdx must be <= endIdx");
+
         if (hasNegativeConstraints) {
             endIdx = endIdx - 2;
         } else {

.idea/runConfigurations.xml

@@ -19,6 +19,7 @@
 import java.util.stream.IntStream;
 
 import static com.google.common.base.Preconditions.checkArgument;
+import static com.google.common.base.Preconditions.checkElementIndex;
 
 @Getter
 @ToString
@@ -75,7 +76,7 @@ public int getNumVariables() {
     }
 
     public Variable getVariable(int index) {
-        checkArgument(index >= 0 && index < variableList.size(), "Index out of bounds");
+        checkElementIndex(index, variableList.size(), "Index out of bounds");
 
         return variableList.get(index);
     }
@@ -116,7 +117,7 @@ public int getNumConstraints() {
     }
 
     public Constraint getConstraint(int index) {
-        checkArgument(index >= 0 && index < constraintList.size(), "Index out of bounds");
+        checkElementIndex(index, constraintList.size(), "Index out of bounds");
 
         return constraintList.get(index);
     }