fix codacy issues

Author: SeeSharpSoft

src/main/java/net/seesharpsoft/intellij/plugins/csv/CsvStorageHelper.java

@@ -18,18 +18,18 @@ public static String getRelativeFilePath(Project project, VirtualFile virtualFil
         if (project == null || virtualFile == null) {
             return null;
         }
-        if (virtualFile instanceof VirtualFileWindow) {
-            virtualFile = ((VirtualFileWindow) virtualFile).getDelegate();
-        }
-        String filePath = virtualFile.getUserData(RELATIVE_FILE_URL);
+        VirtualFile targetFile = virtualFile instanceof VirtualFileWindow ?
+                ((VirtualFileWindow) virtualFile).getDelegate() :
+                virtualFile;
+        String filePath = targetFile.getUserData(RELATIVE_FILE_URL);
         if (filePath == null && project.getBasePath() != null) {
-            String localFilePath = PathUtil.getLocalPath(virtualFile);
+            String localFilePath = PathUtil.getLocalPath(targetFile);
             if (localFilePath == null) {
                 return null;
             }
             String projectDir = PathUtil.getLocalPath(project.getBasePath());
             filePath = localFilePath.replaceFirst("^" + Pattern.quote(projectDir), "");
-            virtualFile.putUserData(RELATIVE_FILE_URL, filePath);
+            targetFile.putUserData(RELATIVE_FILE_URL, filePath);
         }
         return filePath;
     }

src/main/java/net/seesharpsoft/intellij/plugins/csv/editor/table/swing/TableRowUtilities.java

@@ -39,6 +39,7 @@
 import java.awt.event.ComponentAdapter;
 import java.awt.event.ComponentEvent;
 import java.util.ArrayList;
+import java.util.Objects;
 
 
 /**
@@ -154,7 +155,7 @@ public static JTable addNumberColumn(final JTable userTable, int startingNumber)
                 // Make certain we are the viewPort's view and not, for  example, the rowHeaderView of the scrollPane - an implementor of fixed columns might do this.
                 JViewport viewport = scrollPane.getViewport();
 
-                if (viewport == null || viewport.getView() != userTable) {
+                if (viewport == null || !Objects.equals(viewport.getView(), userTable)) {
                     return null;
                 }
 
@@ -318,7 +319,7 @@ private TableSynchronizer(JTable rowHeadersTableArg, JTable userTableArg) {
         }
 
         public void valueChanged(ListSelectionEvent e) {
-            if (e.getSource() == userTable.getSelectionModel()) {
+            if (Objects.equals(e.getSource(), userTable.getSelectionModel())) {
                 rowHeadersTable.getSelectionModel().removeListSelectionListener(this);
                 rowHeadersTable.getSelectionModel().clearSelection();
 
@@ -330,7 +331,7 @@ public void valueChanged(ListSelectionEvent e) {
                 }
 
                 rowHeadersTable.getSelectionModel().addListSelectionListener(this);
-            } else if (e.getSource() == rowHeadersTable.getSelectionModel()) {
+            } else if (Objects.equals(e.getSource(), rowHeadersTable.getSelectionModel())) {
                 boolean isColumnSelectionAllowed = userTable.getColumnSelectionAllowed();
                 boolean isRowSelectionAllowed = userTable.getRowSelectionAllowed();
                 boolean isCellSelectionAllowed = userTable.getCellSelectionEnabled();