fix: Make Flow compatible with ASM versions older than 9 (#15770)

* fix: Make Flow compatible with ASM framework

Solution for #15625, until payara/Payara#6127 is fixed.

* Simplifications

* Change getter names and add final

* fix formatting

flow-data/src/main/java/com/vaadin/flow/data/provider/SortDirection.java

@@ -26,27 +26,19 @@ public enum SortDirection {
     /**
      * Ascending (e.g. A-Z, 1..9) sort order
      */
-    ASCENDING {
-        @Override
-        public SortDirection getOpposite() {
-            return DESCENDING;
-        }
-    },
+    ASCENDING,
 
     /**
      * Descending (e.g. Z-A, 9..1) sort order
      */
-    DESCENDING {
-        @Override
-        public SortDirection getOpposite() {
-            return ASCENDING;
-        }
-    };
+    DESCENDING;
 
     /**
      * Get the sort direction that is the direct opposite to this one.
      *
      * @return a sort direction value
      */
-    public abstract SortDirection getOpposite();
+    public SortDirection getOpposite() {
+        return ASCENDING.equals(this) ? DESCENDING : ASCENDING;
+    }
 }

flow-server/src/main/java/com/vaadin/flow/component/internal/ComponentTracker.java

@@ -19,6 +19,7 @@
 import java.util.Collections;
 import java.util.List;
 import java.util.Map;
+import java.util.Objects;
 import java.util.Optional;
 import java.util.WeakHashMap;
 import java.util.stream.Collectors;
@@ -51,8 +52,63 @@ public class ComponentTracker {
     /**
      * Represents a location in the source code.
      */
-    public record Location(String className, String filename, String methodName, int lineNumber)
-            implements Serializable {
+    public static class Location implements Serializable {
+        private final String className;
+        private final String filename;
+        private final String methodName;
+        private final int lineNumber;
+
+        public Location(String className, String filename, String methodName,
+                int lineNumber) {
+            this.className = className;
+            this.filename = filename;
+            this.methodName = methodName;
+            this.lineNumber = lineNumber;
+        }
+
+        public String className() {
+            return className;
+        }
+
+        public String filename() {
+            return filename;
+        }
+
+        public String methodName() {
+            return methodName;
+        }
+
+        public int lineNumber() {
+            return lineNumber;
+        }
+
+        @Override
+        public boolean equals(Object o) {
+            if (this == o)
+                return true;
+            if (o == null || getClass() != o.getClass())
+                return false;
+
+            Location location = (Location) o;
+
+            if (lineNumber != location.lineNumber)
+                return false;
+            if (!Objects.equals(className, location.className))
+                return false;
+            if (!Objects.equals(filename, location.filename))
+                return false;
+            return Objects.equals(methodName, location.methodName);
+        }
+
+        @Override
+        public int hashCode() {
+            int result = className != null ? className.hashCode() : 0;
+            result = 31 * result + (filename != null ? filename.hashCode() : 0);
+            result = 31 * result
+                    + (methodName != null ? methodName.hashCode() : 0);
+            result = 31 * result + lineNumber;
+            return result;
+        }
     }
 
     /**