diff --git a/src/main/java/com/powsybl/openloadflow/knitro/solver/KnitroSolver.java b/src/main/java/com/powsybl/openloadflow/knitro/solver/KnitroSolver.java
index f12867c..9b4d624 100644
--- a/src/main/java/com/powsybl/openloadflow/knitro/solver/KnitroSolver.java
+++ b/src/main/java/com/powsybl/openloadflow/knitro/solver/KnitroSolver.java
@@ -22,7 +22,6 @@
 import com.powsybl.openloadflow.network.LfBus;
 import com.powsybl.openloadflow.network.LfNetwork;
 import com.powsybl.openloadflow.network.util.VoltageInitializer;
-import com.sun.jdi.InvalidTypeException;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.apache.commons.lang3.Range;
@@ -217,7 +216,7 @@ public void addConstraint(int equationId, KnitroProblem knitroProblem, List<Equa
                     knitroProblem.addConstraintLinearPart(equationId, listVar.get(i), listCoef.get(i));
                 }
                 LOGGER.trace("Adding linear constraint n° {} of type {}", equationId, typeEq);
-            } catch (InvalidTypeException e) {
+            } catch (UnsupportedOperationException e) {
                 throw new RuntimeException(e);
             }
         } else {