diff --git a/src/main/java/org/jabref/model/entry/identifier/DOI.java b/src/main/java/org/jabref/model/entry/identifier/DOI.java
index cc4a8ecc64a..7a1ba1b25fd 100644
--- a/src/main/java/org/jabref/model/entry/identifier/DOI.java
+++ b/src/main/java/org/jabref/model/entry/identifier/DOI.java
@@ -123,8 +123,7 @@ public DOI(String doi) {
                 // decodes path segment
                 URI url = new URI(trimmedDoi);
                 trimmedDoi = url.getScheme() + "://" + url.getHost() + url.getPath();
-            } catch (
-                    URISyntaxException e) {
+            } catch (URISyntaxException e) {
                 throw new IllegalArgumentException(doi + " is not a valid HTTP DOI/Short DOI.");
             }
         }
@@ -170,9 +169,7 @@ public static Optional<DOI> parse(String doi) {
             cleanedDOI = cleanedDOI.replaceAll(CHARS_TO_REMOVE, "");
 
             return Optional.of(new DOI(cleanedDOI));
-        } catch (
-                IllegalArgumentException |
-                NullPointerException e) {
+        } catch (IllegalArgumentException | NullPointerException e) {
             return Optional.empty();
         }
     }