chore: remove repetitive words

config/README.md

@@ -20,7 +20,7 @@ Style-checks are done for each pull request and installing this code style confi
 # Eclipse:
 
 The Eclipse code formatter style is stored in the `eclipse.gradle` file and gets imported automatically.
-In case the formatter style needs to be adapted, configure it and export in in eclipse.
+In case the formatter style needs to be adapted, configure it and export in eclipse.
 
 1. Right click on the eclipse project "JabRef"
 2. Select "Export > General > Preferences"

src/main/java/org/jabref/logic/importer/fetcher/DBLPFetcher.java

@@ -68,7 +68,7 @@ public void doPostCleanup(BibEntry entry) {
         FieldFormatterCleanups cleanups = new FieldFormatterCleanups(true,
                 List.of(
                         new FieldFormatterCleanup(StandardField.TIMESTAMP, new ClearFormatter()),
-                        // unescape the the contents of the URL field, e.g., some\_url\_part becomes some_url_part
+                        // unescape the contents of the URL field, e.g., some\_url\_part becomes some_url_part
                         new FieldFormatterCleanup(StandardField.URL, new LayoutFormatterBasedFormatter(new RemoveLatexCommandsFormatter()))
                 ));
         cleanups.applySaveActions(entry);

src/main/java/org/jabref/model/entry/BibEntry.java

@@ -572,7 +572,7 @@ public Optional<String> getFieldOrAlias(Field field) {
     }
 
     /**
-     * Return the LaTeX-free contents of the given field or its alias an an Optional
+     * Return the LaTeX-free contents of the given field or its alias an Optional
      * <p>
      * For details see also {@link #getFieldOrAlias(Field)}
      *

src/main/java/org/jabref/model/entry/field/OrFields.java

@@ -10,7 +10,7 @@
 /**
  * Represents a choice between two (or more) fields or any combination of them.
  * <p>
- * Example is that a BibEntry requires either an author or an editor, but both can be be present.
+ * Example is that a BibEntry requires either an author or an editor, but both can be present.
  */
 public class OrFields implements Comparable<OrFields> {