Добавлена свой класс Pair.

src/inport/Bunker.java

@@ -4,8 +4,7 @@
  */
 package inport;
 
-import javafx.util.Pair;
-
+import inport.ConversionUtils.Pair;
 import java.util.ArrayList;
 import java.util.Map;
 

src/inport/ConversionUtils/Pair.java

+package inport.ConversionUtils;
+
+public class Pair <K, V> {
+    private K key;
+    private V value;
+
+    public Pair(K key, V value) {
+        this.key = key;
+        this.value = value;
+    }
+
+    public K getKey() {
+        return key;
+    }
+    public V getValue() {
+        return value;
+    }
+}

src/inport/ConversionUtils/Task.java

 package inport.ConversionUtils;
 
 import inport.*;
-import javafx.util.Pair;
 import org.jetbrains.annotations.NotNull;
 
 import java.io.FileWriter;

src/inport/ConversionUtils/Utils.java

 package inport.ConversionUtils;
 
 import inport.*;
-import javafx.util.Pair;
-
 import java.util.*;
 
 public class Utils {

src/inport/Storage.java

@@ -4,7 +4,7 @@
  */
 package inport;
 
-import javafx.util.Pair;
+import inport.ConversionUtils.Pair;
 
 import java.util.ArrayList;
 import java.util.Map;

src/inport/Testing.java

@@ -3,7 +3,7 @@ package inport;
 import inport.ConversionUtils.MZnResultsResolver;
 import inport.ConversionUtils.ParserException;
 import inport.ConversionUtils.Task;
-import javafx.util.Pair;
+import inport.ConversionUtils.Pair;
 
 import java.io.*;
 import java.util.ArrayList;

src/inport/TransportShip.java

@@ -4,7 +4,7 @@
  */
 package inport;
 
-import javafx.util.Pair;
+import inport.ConversionUtils.Pair;
 
 import java.util.ArrayList;
 import java.util.Map;